Change search
Refine search result
1234 51 - 100 of 159
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 51. Hedblom, Marcus
    et al.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Characterizing biodiversity in urban areas using remote sensing2011In: Urban Remote Sensing: Monitoring, Synthesis and Modeling in the Urban Environment / [ed] Xiaojun Yang, Chichester: John Wiley & Sons, 2011, p. 287-304Chapter in book (Refereed)
    Abstract [en]

    Fauna and flora, and their diversity in cities have long been a neglected research area; instead, more natural environments or environments used for human production, such as forests or rural areas, have been prioritized. However, there has been a recent major increase in studies of urban green areas and their importance for species richness. The urbanization process has led to fragmentation of habitats, which has become one of the greatest threats to biodiversity worldwide. Remote sensing is a cost-efficient data source covering large areas, capturing information in a systematic manner and can provide data for spatiotemporal studies in urban environments. However, few studies have examined biodiversity in urban ecosystems using satellite images. Here, we reviewremote sensing techniques for the study of biodiversity in urban areas, different approaches for characterizing biodiversity with remote sensing and the effects of urbanization on biodiversity; we also discuss applications of remote sensing in planning and management, and past and future avenues for research.We conclude that urban biodiversity studies are still far from exploiting the full potential of advances in data capture, data interpretation and classification methods in combination with field studies for deriving ecologically meaningful information.

  • 52.
    Jamali, Imran Ali
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering. KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Shafique, M
    A spatial multi-criteria analysis approach for locating suitable sites for construction of subsurface dams in northern Pakistan2014In: Water resources management, ISSN 0920-4741, E-ISSN 1573-1650, Vol. 28, no 14, p. 5157-5174Article in journal (Refereed)
    Abstract [en]

    Pakistan is an agricultural country with an increasing interest for hydropower. Water management problems such as sedimentation and evaporation have been of high concern for surface water reservoirs for many years. Therefore, groundwater storage through subsurface dams could be promising, especially considering the monsoon rainfall and seasonal river flows in Pakistan. The paper aims to develop and test a methodology to locate suitable sites for construction of subsurface dams using spatial multi-criteria analysis (SMCA) in the northern parts of Pakistan. For the study, spatial data on geology, slope, land cover, soil depth and topographic wetness index (TWI) was used. Two weighting techniques, i.e. the analytic hierarchy process (AHP) and the factor interaction method (FIM), were employed and compared. The sensitivity of the two methods as well as of the model parameters was analysed. The suitability map derived from AHP yielded about 3 % (16 km(2)) of the total area as most suitable, about 4 % (22 km(2)) as moderately suitable and about 0.8 % (5 km(2)) as least suitable. The suitability map derived from FIM identified about 2.7 % (14 km(2)) of the total area as most suitable, about 4 % (22 km(2)) as moderately suitable and about 1 % (7 km(2)) as least suitable. The sensitivity analyses suggested that AHP was a more robust weighting technique than FIM and that land cover was the most sensitive factor. The methodology presented here shows promising results and could be used in early planning to locate suitable sites for construction of subsurface dams.

  • 53.
    Jamali, Imran Ali
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Locating suitable sites for the construction of subsurface dams using GIS2013In: Environmental Earth Sciences, ISSN 1866-6280, Vol. 70, no 6, p. 2511-2525Article in journal (Refereed)
    Abstract [en]

    Subsurface dams constitute an affordable and effective method for the sustainable development and management of groundwater resources when constructed on suitable sites. Such dams have rarely been constructed in crystalline rock areas and to best of our knowledge, geographic information system (GIS) has never been used in any methodology for locating suitable sites for constructing these dams. This paper presents a new methodology to locate suitable sites for the construction of subsurface dams using GIS software supported by groundwater balance modelling in a study area Boda-Kalvsvik, Sweden. Groundwater resources were calculated based on digitized geological data and assumptions regarding stratigraphic layering taken from well archive data and geological maps. These estimates were then compared with future extractions for domestic water supply using a temporally dynamic water balance model. Suitability analyses for subsurface dams were based on calculated topographic wetness index (TWI) values and geological data, including stratigraphic information. Groundwater balance calculations indicated that many of the most populated areas were susceptible to frequent water supply shortages. Of the 34 sub-catchments within the study area: ten were over-extracted, nine did not have any water supply demand at all, one was self-sufficient and the remaining 14 were able to meet the water supply demand with surplus storage capacity. Six suitable sites for the construction of subsurface dams were suggested in the vicinity of the over-extracted sites based on suitability analysis and groundwater balance estimates. The new methodology shows encouraging results for regions with humid climate but having limited natural water storage capacities. The developed methodology can be used as a preliminary planning step for subsurface dam construction, establishing a base for more detailed field investigations.

  • 54. Kalantari, Zahra
    et al.
    Khoshkar, Sara
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Falk, Helena
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
    Cvetkovic, Vladimir
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Accessibility of water-related cultural ecosystem services through public transport: A model for planning support in the Stockholm Region2017In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, no 3, p. 346-Article in journal (Refereed)
    Abstract [en]

    Planning for sustainable cities involves supporting compact, energy-efficient urban form as well as maintaining attractive and liveable urban landscapes. Attractive cities depend highly on services provided by ecosystems, especially cultural ecosystem services (ES), which give direct benefits to urban citizens. Therefore, access to a diversity of urban functions and publicly available ES by walking and public transport should be considered when planning for sustainable cities. This could be facilitated by user-friendly planning support models. The aim of this study was to develop a GIS-based model for assessing accessibility to ES, more specifically, water-related cultural ecosystem services (WCES), via walking and public transport, with input from stakeholders. The model was applied to the Stockholm region in Sweden. Travel times and census data were used to derive measures and maps of accessibility to prioritised WCES in the region, today and in urbanisation scenarios for 2050. The results showed how access to WCES varied spatially within the region. The number of potential visitors to different WCES sites now and in the future urbanisation scenarios was estimated, and areas in need for future development of the public transport system as well as WCES were identified. The GIS-based accessibility model has potential to be used as planning support in urban planning.

  • 55.
    Kale, Manoj
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Bhattacharya, Prosun
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
    Chakane, Sanjay
    Physics, ASC College, Indapur affiliated to University of Pune, 413 302, India.
    Damage to agricultural yield due to farmland birds, present repelling techniques and its impacts: an insight from the Indian perspective2012In: Journal of Agricultural Technology, ISSN 1686-9141, Vol. 8, no 1, p. 49-62Article in journal (Refereed)
    Abstract [en]

    In India, nearly 65% of the people are directly or indirectly dependent on agricultural sector for economic survival. The annual income of farmers is significantly influenced by the yield of the crops, which is continuously decreasing due to natural phenomena and poor technological advancement. However, the particular attention should be paid to the damage caused by birds. While the exact measure of the loss in yield associated with birds is unknown, farmers integrate a number of traditional and conventional techniques to grow and store grains and fruits. Many of the used methods result in extinction of the rare birds. Therefore, there is a need to develop alternative techniques, such as dialogue with the farmers, grain storage authorities and experts in the fields of ornithology, agricultural sectors and field visits, to avoid irreversible harm to the Indian biodiversity. This research analyzes the loss of yield of crop due to birds, explores repelling techniques adopted by the farmers, and addresses the consequences of integrated methods on the bird biodiversity in India. The project unveils the importance an interdisciplinary approach to develop an eco-friendly technique to reduce the loss of both the birds and the crops.

  • 56. Karimpour, Marziyeh
    et al.
    Karlson, Mårten
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Engineering Geology and Geophysics.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Ecological impacts of transportation infrastructure: A spatial national assessment for Sweden2011Conference paper (Refereed)
  • 57.
    Karlson, Mårten
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Karlsson, Caroline
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Design and evaluation of railway corridors based on spatial ecological and geological criteria2016In: Transportation Research Part D: Transport and Environment, ISSN 1361-9209, E-ISSN 1879-2340, Vol. 46, p. 207-228Article in journal (Refereed)
    Abstract [en]

    Transport infrastructure is closely linked to several sustainability issues of main policy relevance, and significant impacts on biodiversity as well as resource use and construction costs relate to the corridor design and location in the landscape. The aim of this study was to develop methods for railway corridor planning, in which corridor design and location would be based on important ecological and geological sustainability criteria. The method, an MCA framework including both spatial and non-spatial MCA, was demonstrated on a railway planning proposition in an urbanising area north of Stockholm, Sweden. Alternative spatial alignments for 6 railway corridors were derived based on criteria representing biodiversity, resource efficiency and costs, developed from ecological and geological knowledge, data and models. The method identified a study area specific positive synergy between ecological and geological sustainability criteria. The evaluation part of the methodology could furthermore identify uncertainties in the input data and assumptions and conflicts between ecological criteria. In order to arrive at a well-informed decision support system, the criteria as well as the decision rules employed could be further elaborated. Other relevant sustainability issues would also need to be integrated, such as cultural landscapes, recreation, and other ecosystem services. Still, arriving at a corridor design informed by the ecological and geological conditions in the planned area, as demonstrated by this study, could improve the sustainability performance of transport infrastructure planning.

  • 58.
    Karlson, Mårten
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    A spatial ecological assessment of fragmentation and disturbance effects of the Swedish road network2015In: Landscape and Urban Planning, ISSN 0169-2046, E-ISSN 1872-6062, Vol. 134, p. 53-65Article in journal (Refereed)
    Abstract [en]

    Transportation infrastructure has a wide range of effects on ecological processes, which result in both positive and negative impacts for biodiversity. However, the treatment of biodiversity in planning and environmental assessment have been criticized, especially regarding habitat loss and fragmentation effects, the low use of quantitative methods and that of assessments being descriptive rather than analytical and predictive. The aim of this study was to assess the impacts of the Swedish road network by spatial modelling of road effects, to explore potential impacts of fragmentation and disturbance effects of roads on habitat networks for selected ecological profiles, and to discuss the utility of applying quantitative methods for environmental assessment purposes. Habitat and landcover data was used for creating habitat networks for six ecological profiles. Fragmentation and disturbance effects were modelled in GIS and FRAGSTATS was used to quantify ecologically important landscape metrics on habitat amount and connectivity. The results showed that natural grasslands and southern broadleaved forest were substantially more exposed to road effects in Sweden, compared to old coniferous and trivial broadleaved forest. Furthermore, habitat loss was a main consequence of road effects, and forest species with high area demands were most prone to be adversely impacted. Suggestions on method development in order to increase the quality of the analysis methods for environmental assessment are discussed. The potential is seen as high for use of quantitative ecological methods to generate baseline environmental information as well as coarse predictions on likely consequences of development options, useful for environmental assessment.

  • 59.
    Karlson, Mårten
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Road Ecology in Environmental Impact Assessment2014In: Environmental impact assessment review, ISSN 0195-9255, E-ISSN 1873-6432, Vol. 48, p. 10-19Article in journal (Refereed)
    Abstract [en]

    Transport infrastructure has a wide array of effects on terrestrial and aquatic ecosystems, and road and railway networks are increasingly being associated with a loss of biodiversity worldwide. Environmental Impact Assessment (EIA) and Strategic Environmental Assessment (SEA) are two legal frameworks that concern physical planning, with the potential to identify, predict, mitigate and/or compensate transport infrastructure effects with negative impacts on biodiversity. The aim of this study was to review the treatment of ecological impacts in environmental assessment of transport infrastructure plans and projects. A literature review on the topic of EIA, SEA, biodiversity and transport infrastructure was conducted, and 17 problem categories on the treatment of biodiversity were formulated by means of a content analysis. A review of environmental impact statements and environmental reports (EIS/ER) produced between 2005 and 2013 in Sweden and the UK was then conducted using the list of problems as a checklist The results show that the treatment of ecological impacts has improved substantially over the years, but that some impacts remain problematic; the treatment of fragmentation, the absence of quantitative analysis and that the impact assessment study area was in general delimited without consideration for the scales of ecological processes. Actions to improve the treatment of ecological impacts could include improved guidelines for spatial and temporal delimitation, and the establishment of a quantitative framework including tools, methods and threshold values. Additionally, capacity building and further method development of EIA and SEA friendly spatial ecological models can aid in clarifying the costs as well as the benefits in development/biodiversity tradeoffs.

  • 60.
    Karlson, Mårten
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Lundberg, Kristina
    Ecoloop AB.
    Erlandsson, Åsa
    Hedlund, Anders
    Swedish EIA centre, Swedish Univeristy of Agricultural Science.
    Lindblom, H.
    Swedish EIA centre, Swedish Univeristy of Agricultural Science.
    Application of Environmental Quality Objectives in Regional Scale Infrastructure Projects: a Swedish Example2011In: From biodiversity to ecosystem services: The changing face of EIA, IAIA , 2011Conference paper (Refereed)
    Abstract [en]

    It is rarely possible to develop transport infrastructure without significant ecological impacts. A road or a railway will provide new habitat for some species, however, the overall environmental impacts, not at least on biodiversity, tend to be problematic. In order to improve the integration of transport infrastructure in its environmental and cultural settings, different strategies, methods and tools have been developed. EIA and SEA are examples of such methods. In Sweden 16 national environmental quality objectives have been formulated with the intention to guide societal development onto a sustainable path, i.e. to be used in infrastructure planning. The study reviews the experiences of the implementation and utilization of these environmental objectives in infrastructure project planning, including their influence on EIA and SEA procedures. Interviews were held with infrastructure planners, EIA and SEA consultants, representatives of permitting authorities etc.; followed by workshops and seminars. The results show that the objectives are overriding, but difficult to transfer and integrate into the different levels of project planning. Environmental concern seems currently to be driven by other factors. In order to use the official environmental quality objectives as guidance for road and railway planning, consensus on definitions, interpretations and intrinsic relations between different objectives, including the underlying environmental aspects (e.g. between biodiversity and other environmental aspects and objectives such as ‘landscape’), are urged for.

  • 61.
    Karlson, Mårten
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Seiler, A.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    The effect of fauna passages and landscape characteristics on barrier mitigation successManuscript (preprint) (Other academic)
    Abstract [en]

    Transport infrastructure can impose significant barriers to movements to many, if not most terrestrial animals. Barrier effects can lead to increased isolation of wildlife populations, which in turn might have demographic effects and even increase genetic differentiation between neighbouring populations. This study attempted to clarify the role of fauna passages and generic landscape patterns for connectivity in fragmented landscapes, and to improve the theoretical basis for future experimental approaches to evaluate the effectiveness of barrier mitigation strategies. Specifically, the issue of whether it would be more effective to construct a single large rather than several small crossing structures (SLOSS) was addressed by this study. Three hypotheses were formulated on the relationship between habitat connectivity, as a prerequisite for genetic exchange, and habitat aggregation and contrast between habitat types. Random landscapes with different combinations of aggregation, contrast and number and size of fauna passages were created in a GIS. Connectivity was then quantified as a function of movement resistance using circuit theory and related methods, and measurements from the random landscapes were statistically analysed. The results indicate that in any landscape, it would be more effective to construct several small fauna passages instead of a single large one to mitigate the effect of a barrier. The level of aggregation appeared to have no influence per se on connectivity, and increasing the level of contrast increased the variance in the results. Results indicate that the effectiveness of a fauna passage will to a large extent rely on the location of a fauna passage relative to how the mitigation target species perceive the landscape in terms of contrast between different habitat types. A predefined interval between fauna passages could therefore result in highly ineffective mitigation, in a situation where a fauna passage would be located in habitat perceived as of high resistance. It is recommended that barrier effect mitigation strategies focus on the location and design of several small fauna passages rather than a single large one. Future research should focus on the development of dispersal and movement models for a set focal species that perceive a minimum degree of contrast between habitat types.

  • 62.
    Karlson, Mårten
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Seiler, Andreas
    Swedish University of Agricultural Sciences.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    The effect of fauna passages and landscape characteristics on barrier mitigation success2017In: Ecological Engineering: The Journal of Ecotechnology, ISSN 0925-8574, E-ISSN 1872-6992, Vol. 105, p. 211-220Article in journal (Refereed)
    Abstract [en]

    Transport infrastructure can impose significant barriers to movements to many, if not most terrestrial animals. Barrier effects can lead to increased isolation of wildlife populations, which in turn might have demographic effects and even increase genetic differentiation between neighbouring populations. This study attempted to clarify the role of fauna passages and generic landscape patterns for connectivity in fragmented landscapes, and to improve the theoretical basis for future experimental approaches to evaluate the effectiveness of barrier mitigation strategies. Specifically, the issue of whether it would be more effective to construct a single large rather than several small crossing structures (SLOSS) was addressed by this study. Three hypotheses were formulated on the relationship between habitat connectivity, as a prerequisite for genetic exchange, and habitat aggregation and contrast between habitat types. Random landscapes with different combinations of aggregation, contrast and number and size of fauna passages were created in a GIS. Connectivity was then quantified as a function of movement resistance using circuit theory and related methods, and measurements from the random landscapes were statistically analysed. The results indicate that in any landscape, it would be more effective to construct several small fauna passages instead of a single large one to mitigate the effect of a barrier. The level of aggregation appeared to have no influence per se on connectivity, and increasing the level of contrast increased the variance in the results. It is recommended that barrier effect mitigation strategies focus on the location and design of several small fauna passages rather than a single large one. Future research should focus on the development of dispersal and movement models for a set focal species. The effectiveness of increasing fauna passage dimensions above those of crossing structures that are evidently used by the intended species should also need more research.

  • 63.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Ali, Imran
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Earon, Robert
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Comparison of methods for predicting regolith thickness in previously glaciated terrain, Stockholm, Sweden2014In: Geoderma, ISSN 0016-7061, E-ISSN 1872-6259, Vol. 226, p. 116-129Article in journal (Refereed)
    Abstract [en]

    Knowledge about regolith thickness is important in several civil and environmental engineering fields. However, subsurface characteristics such as regolith thickness are difficult to determine through surface investigations and maps at regional scales. This paper presents four methods for estimating regolith thickness in a GIS environment for previously glaciated terrain with high frequency of rock outcrops: linear regression (LR) using topographical covariates; inverse distance weighting (IOW) interpolation of regolith thickness point data from well drillings: a trigonometrical approach (TA) developed for this study which uses outcrop slopes and distance between outcrops; and a simplified regolith model (SRM). The SRM is a model modified from TA which estimates the regolith thickness based on outcrops, slopes and the distance to outcrops in eight directions. The methods were compared for three study areas (Tyreso, Vallentuna and Osteraker) in Stockholm County, Sweden. Based on the results in this paper, LR proved to be the most accurate method for regolith thickness estimation, measured through root mean square error values. Whereas IDW was the most accurate method in terms of error within 2 m, which would make it a suitable model if and when large datasets of regolith point data are available. When drilling data is scarce then both the TA and SRM methods can be used for regolith estimations. However, the SRM proved to be a more accurate regolith thickness model compared to TA. SRM shows promising results and could be used at a preliminary stage in engineering projects where little or no data is available prior to detailed field investigations in previously glaciated terrain.

  • 64.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Jamali, Imran
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Earon, Roberg
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Simplified Regolith Model (SRM): A GIS approach to estimate regolith thickness using outcrop slopes and distance to outcrops2015In: Geophysical Research Abstracts Vol. 17, EGU2015-10232, 2015, EGU General Assembly, 2015Conference paper (Refereed)
  • 65.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Kalantari, Zahra
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Lyon, Steve
    Stockholms Universitet.
    The impact of expert knowledge on natural hazard susceptibility assessment using spatial multi-criteria analysis2016Conference paper (Refereed)
  • 66.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Kalantari, Zahra
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Lyon, Steve W
    Natural hazard susceptibility assessment for road planning using spatial multi-criteria analysisManuscript (preprint) (Other academic)
    Abstract [en]

    Inadequate infrastructural networks can be detrimental to a society if transport between locations becomes hindered or delayed, especially due to natural hazards which are more difficult to control. Thus determining natural hazard susceptible areas and incorporating them in the initial planning process, may reduce infrastructural damages in the long run. The objective of this study was to evaluate the usefulness of expert judgements for assessing natural hazard susceptibility through a spatial multi-criteria analysis (SMCA) approach using hydrological, geological and land use factors. To utilize SMCA for decision support, an analytic hierarchy process (AHP) was adopted where expert judgements were evaluated individually and in an aggregated manner. The estimates of susceptible areas were then compared with the methods Weighted linear combination (WLC) using equal weights and Factor interaction method (FIM). Results showed that inundation received the highest percentage of susceptibility. Using expert judgement showed to perform almost same as Equal weighting where the difference (i.e. average) in susceptibility between the two for inundation was around 4%. Results also showed that downscaling could negatively affect the susceptibility assessment and be highly misleading. Susceptibility assessment through SMCA is useful for decision support in early road planning despite its limitation to selection and use of decision rule and criteria. A natural hazard SMCA could be used to indicate areas where more investigations need to be undertaken from a natural hazard point of view, and to identify areas thought to have higher susceptibility along existing roads where mitigation measures could be targeted after in-situ investigations.

  • 67.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Kalantari, Zahra
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Water and Environmental Engineering.
    Lyon, Steve W.
    Natural hazard susceptibility assessment for road planning using spatial multi-criteria analysis2017In: Environmental Management, ISSN 0364-152X, E-ISSN 1432-1009, Vol. 60, no 5, p. 823-851Article in journal (Refereed)
    Abstract [en]

    Inadequate infrastructural networks can be detrimental to society if transport between locations becomes hindered or delayed, especially due to natural hazards which are difficult to control. Thus determining natural hazard susceptible areas and incorporating them in the initial planning process, may reduce infrastructural damages in the long run. The objective of this study was to evaluate the usefulness of expert judgements for assessing natural hazard susceptibility through a spatial multi-criteria analysis (SMCA) approach using hydrological, geological and land use factors. To utilize SMCA for decision support, an analytic hierarchy process (AHP) was adopted where expert judgements were evaluated individually and in an aggregated manner. The estimates of susceptible areas were then compared with the methods weighted linear combination (WLC) using equal weights and factor interaction method (FIM). Results showed that inundation received the highest susceptibility. Using expert judgement showed to perform almost the same as Equal weighting where the difference in susceptibility between the two for inundation was around 4%. The results also showed that downscaling could negatively affect the susceptibility assessment and be highly misleading. Susceptibility assessment through SMCA is useful for decision support in early road planning despite its limitation to the selection and use of decision rules and criteria. A natural hazard SMCA could be used to indicate areas where more investigations need to be undertaken from a natural hazard point of view, and to identify areas thought to have higher susceptibility along existing roads where mitigation measures could be targeted after in-situ investigations.

  • 68.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Miliutenko, Sofiia
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Environmental Strategies Research (fms).
    Björklund, Anna
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Environmental Strategies Research (fms).
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Toller, Susanna
    Life cycle assessment in road infrastructure planning using spatial geological data2017In: The International Journal of Life Cycle Assessment, ISSN 0948-3349, E-ISSN 1614-7502, Vol. 22, no 8, p. 1302-1317Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of the study was to outline and demonstrate a new geographic information system (GIS)-based approach for utilising spatial geological data in three dimensions (i.e. length, width and depth) to improve estimates on earthworks during early stages of road infrastructure planning. Methods: This was undertaken by using three main methodological steps: mass balance calculation, life cycle inventory analysis and spatial mapping of greenhouse gas (GHG) emissions and energy use. The mass balance calculation was undertaken in a GIS environment using two assumptions of geological stratigraphy for two proposed alternative road corridors in Sweden. The estimated volumes of excavated soil, blasted rock and filling material were later multiplied with the GHG emission and energy use factors for these processes, to create spatial data and maps in order to show potential impacts of the studied road corridors. The proposed GIS-based approach was evaluated by comparing with actual values received after one alternative was constructed. Results and discussion: The results showed that the estimate of filling material was the most accurate (about 9 % deviation from actual values), while the estimate for excavated soil and blasted rock resulted in about 38 and 80 % deviation, respectively, from the actual values. It was also found that the total volume of excavated and ripped soils did not change when accounting for stratigraphy. Conclusions: The conclusion of this study was that more information regarding embankment height and actual soil thickness would further improve the model, but the proposed GIS-based approach shows promising results for usage in LCA at an early stage of road infrastructure planning. Thus, by providing better data quality, GIS in combination with LCA can enable planning for a more sustainable transport infrastructure.

  • 69.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Miliutenko, Sofiia
    KTH.
    Björklund, Anna
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Environmental Strategies Research (fms).
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Toller, Susanna
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
    Life cycle assessment in road infrastructure planning using spatial geological dataManuscript (preprint) (Other academic)
  • 70.
    Karlsson, Caroline
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Miliutenko, Sofiia
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering. KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Environmental Strategies Research (fms).
    Björklund, Anna
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Environmental Strategies Research (fms).
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Olofsson, Bo
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Toller, Susanna
    Swedish Transport Agency.
    Towards a better planning process: Can geological data be useful?2015Conference paper (Other academic)
  • 71. Kraxner, Florian
    et al.
    Lundvall, Anders
    Hörnell-Willebrand, Maria
    Haraldsson, Hördur V
    Nordström, Eva-Maria
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management.
    Pang, Xi
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management.
    Eriksson, Ljusk Ola
    Lämås, Tomas
    Shvidenko, Anatoly
    Schepaschenko, Dimitry
    Leduc, Sylvain
    Yowargana, Ping
    Patrizio, Piera
    Mesfun, Sennai
    Pietsch, Stephan A
    Franklin, Oskar
    Krasovskii, Andrey
    Khabarov, Nikolay
    Balkovic, Juraj
    Nilsson, Sten B
    Planning the future forests: managing for wildlife in a climate constrained landscape2017In: Book of Abstracts, 2017, p. 655-Conference paper (Refereed)
    Abstract [en]

    Multipurpose functionality is a paradigm when it comes to forest management. This includes sustainability, resilience, stand stability, wildlife management, recreation, clean water and air, or healthy soils - to name a few. The world is aiming at a maximum global warming of 2-deg by 2100, but cumulative emissions are still rising. Higher temperatures are associated with higher risks of extreme events such as storm, flood, droughts, pests and fires etc. - and at the same time, forest systems are key for any mitigation activity to avoid such dangerous climate change. But how will a managed forest look like in the future? How can we understand the underlying dynamics and make our forests fit for the increased need for carbon storage, biomass for energy and sustainable wood and non-wood forest products like game, while maintaining biodiversity, recreational and protected areas. Moreover, we need to address all challenges on limited land and establish action from policy development allthe way to their implementation within a short time frame. Based on Sweden's forests, traditionally considered a role model for successfully bridging a multitude of demands, we present a modeling approach that should serve as a planning tool for enhancing forests' risk resilience and capacity of integrating diverse demands and different ecosystem-services. Guided by the expertise of Sweden's Environmental Protection Agency, national forest and habitat shift models from SLU and KTH will be linked with global land use models and engineering tools from IIASA. Hereby, special emphasis will be put on ecosystem services from wildlife, different scenarios of forest intensification and the optimization of biomass for bioenergy production. First estimates show that spatially explicit modeling can substantially support decision making by optimizing multipurpose use of both managed and protected areas and steering habitat shift for maintaining biodiversity and improving wildlife (game)management.

  • 72. La Sorte, Frank
    et al.
    Lepczyk, Christopher
    Aronson, Myla
    Goddard, Mark
    Katti, Madhusudan
    MacGregor-Fors, Ian
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
    Nilon, Charles
    Warren, Paige
    Nicholas, William
    Yang, Jun
    The phylogenetic and functional diversity of regional breeding bird assemblages is reduced and constricted through urbanization2018In: Diversity & distributions: A journal of biological invasions and biodiversity, ISSN 1366-9516, E-ISSN 1472-4642, Vol. 24, no 7, p. 928-938Article in journal (Refereed)
    Abstract [en]

    Urbanization broadly affects the phylogenetic and functional diversity of natural communities through a variety of processes including habitat loss and the introduction of non-native species. Due to the challenge of acquiring direct measurements, these effects have been studied primarily using ‘space-for-time’ substitution where spatial urbanization gradients are used to infer the consequences of urbanization occurring across time. The ability of alternative sampling designs to replicate the findings derived using space-for-time substitution has not been tested. Here, we contrastthe phylogenetic and functional diversity of breeding bird assemblages in 58 cities worldwide with the corresponding regional breeding bird assemblages estimated using geographic range maps. Our findings indicate that urban areas are associated with lower phylogenetic diversity, lower phylogenetic beta diversity, a reduction in the least evolutionary distinctspecies, and the complete loss of the most evolutionarily distinct species. We found no evidence that these effects were related to the presence of non-native species. At a function level, our findings indicate that urban areas were associated with fewer aquatic species, fewer small and especially large bodied species, fewer narrowly and especially broadly distributed species, fewer herbivores, and fewer aquatic foraging species. Conversely, urban areas were associated with a greater prevalence of passerines, doves and pigeons, granivores, species that forage in association with vegetation or in the air, and species with more generalized associations with foraging strata. In total, our findings indicate that urbanization is associated with the overall reduction and constriction of phylogenetic and functional diversity, results that largely replicated those generated using space-for-time substitution, increasing our confidence in the quality of the combined inferences. When direct measurements are unavailable, our findings emphasize the value of developing independent sampling methods that broaden and reinforce our understanding of the ecological implications of urbanization.

  • 73.
    LarsOlle, Anders
    et al.
    SLU.
    Caruso, A
    Hannrup, Björn
    Hansson, Per-Anders
    Jönsson, Mari
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Nordström, Maria
    Olsson, Bengt
    Rudolphi, Jörgen
    Strömgren, M
    A multi-criteria decision support model for optimal stump harvesting2012Conference paper (Other academic)
    Abstract [en]

    A multi-criteria decision support model for optimal stump harvesting Sweden was developed. The model quantifies the effect of harvesting each individual stump over a harvesting object in four criteria's: - Biodiversity (Biodiversity value index) - Economy (SEK) - Greenhouse gas emissions (CO2) - Soil and water (Soil and water preservation index) The four criteria's are sometimes in conflict to each other, and uses values that are not directly comparable. The intended use for this model is to contribute with the objective evaluation of all four criteria's in the decision in what stumps to harvest and what stumps to leave in the harvesting object. The model uses individual stump data (e.g. position, tree species and stump biomass) and harvesting object GIS data (roads, elevation map, soil map, terrain map). Primary data on individual stumps comes from the logging system in the stem harvesters: GPS and operator classification. Such data are routinely collected in harvesters. Official map data for the harvesting object are available from the Swedish mapping, cadastral and land registration authority (Lantmäteriet). This includes the topographic map and elevation maps data in 2 m resolution. Also, GIS data are collected in the inspections before harvesting the stems. The biodiversity sub-model considers different types of wood-dependent organisms (lichens, mosses, insects and fungi) in terms of their habitat requirements, vulnerability, sun exposure preferences, locality, etc. A panel of external experts has drawn up a grading scale of stump values for the different taxonomic groups. The proximity to key habitats and exposure to sunlight are derived from a spatial model. In the economic sub-model the potential net return from each stump is calculated based on estimated revenue from harvested stump biomass and the costs of stump harvesting and transport (based on cost functions and GIS calculations of transport distances). An energy and climate sub-model incorporates greenhouse gas (GHG) emissions from forest operations and the effect of advancing GHG emissions when stump biomass is incinerated instead of being left to decompose. Soil and water issues are handled within a sub-model estimating the consequences for long-term soil fertility (nutrient cycling and soil compaction) and water (leaching of plant nutrients and mercury, and particle transport due to soil damage by heavy machinery). Each criteria is evaluated in totally four sub-models. To be able to compare the resulting value from each of the criteria, a harvesting index from 0 to 1 is calculated for each stump. The value 0 represents ‘Not at all suitable for harvest’ and 1 ‘Highly suitable for harvest’. Through this, a stump of high biodiversity value is assigned a low harvesting index in the biodiversity sub-model and a large, easily accessible stump is assigned a high harvesting index in the economic sub-model. When calculating the total net index, the harvesting index from each criteria has to be weighed together using one coefficient for each criteria. The weighing coefficient for each criteria is chosen according to the preferences of the decision maker. The tool offers the end-user possibilities to prioritise and plan for cost-effective stump harvesting, while minimising negative environmental impacts.

  • 74.
    Larsolle, Anders
    et al.
    Swedish University of Agricultural Sciences.
    Hannrup, Björn
    Skogforsk.
    Jönsson, Mari
    Swedish University of Agricultural Sciences.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Nordström, Maria
    Skogforsk.
    Olsson, Bengt
    Swedish University of Agricultural Sciences.
    Rudolphi, Jörgen
    Swedish University of Agricultural Sciences.
    Strömgren, Monica
    Swedish University of Agricultural Sciences.
    Modellbaserat beslutsstöd för stubbskörd [Model based decision support for stump harvest, in Swedish]2017Report (Other academic)
    Abstract [en]

    In this study a decision support model for tree stump harvest was developed. The model takes into account four criteria: economy, energy and climate, biodiversity, and land and water. The value of each individual tree stump was calculated separately for each criterion. The four criteria values were then weighed together into a final suitability score for stump harvest. The final suitability score decided whether the decision support model recommended harvest of each individual tree stump or not. Data from the harvester collected at final felling was used as input to the decision support model. For each stump the values used in the model was dry mass, stump diameter, tree species and position. In addition, the harvesters log track was used as a basis for localising the terrain roads within the stand. Other geographical data used was elevation data, presence of objects with special value for biodiversity and land/water, such as key biotopes, open water and moist soil. A special study was conducted to estimate the soil stability from a topographical wetness index.The decision support model was evaluated on an existing felling 2010 in Northern Uppland. The area was 45 hectares with about 26 000 stumps. The result of the decision support model showed that general economic parameters had the greatest impact in both sensitivity and scenario analysis. The most important variable was the price for stump biomass at road side. The decision support model results left continuous areas of the stand with all stumps unharvested. The reason for this was the economy criterion's sensitivity to the local amount of stump withdrawal per hectare. Low stump withdrawal gave high harvesting costs. In that economy was the only criterion which motivated stump harvest, the model never suggested harvesting a stump unless surrounding stumps were harvested too.There is potential for developing this decision support model further using updated knowledge and examining the impact of different criteria on the final model result. The decision support model has good opportunities to serve as a comprehensive planning basis in order to ensure sustainable stump harvest.

  • 75.
    Lundgren, Kajsa
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Kalantari, Zahra
    Stockholms Universitet.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Samuelsson, Henny
    Stockholm Vatten och Avfall, City of Stockholm.
    Planning support for reducing risks related to flooding in the Stockholm Region2017Conference paper (Refereed)
    Abstract [en]

    The urbanization trend during the last decades have several environmental impacts, particularly associated with increasing runoff and flood hazard, and decreasing water quality. These topics have been investigated all around the world, but relatively little is known about the impacts of urban development at the early stage of the urban planning in cities. This project aims to develop planning support tools for addressing impacts of different urbanization patterns in alternative planning scenarios on surface water within the City of Stockholm, the capital of Sweden.

    With the help of urban planners at the municipality, alternative future urban scenarios will be created and assessed from a hydro-meteorological risk assessment perspective. The scenarios will include alternative development patterns for buildings, infrastructure and supply of several regulating and cultural ecosystem services. For the water-related risk assessment, a hydrological model will be set up and validated using available data for a selected catchment that is affected by the scenarios. This will then be used to assess the impacts of the scenarios on the hydrological response and its implications. In the end, the results are expected to contribute to identifying how localization and type of different ecosystem services in the urban planning can be employed as nature-based solutions for hydro-meteorological risk reduction and climate adaptation.

  • 76.
    Manolan Kandy, Deepa
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
    Spatial planning for wind energy development using GIS2018Conference paper (Other academic)
  • 77.
    Mizgajski, Andrzej
    et al.
    Adam Mickiewicz University, Poznan, Poland.
    Breuste, Jürgen
    University of Salzburg, Austria.
    Albert, Christian
    Leibniz Universitaet Hannover, Germany.
    Gruehn, Dietwald
    Dortmund University of Technology, Germany.
    Kozova, Maria
    Comenius University in Bratislava, Slovakia.
    Miklos, Laszlo
    Technical University in Zvolen, Slovakia.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Implementation of landscape ecological knowledge: Achievements and challenges2010In: The Problems of Landscape Ecology, ISSN 1899-3850, Vol. XXVIII, p. 9-13Article in journal (Refereed)
    Abstract [en]

    This paper gives a synthetic presentation of problems related to the practical application of results in land-scape ecological studies. The diagnoses presented are based on the findings of ILECO2010 symposium, which was devoted to this. The assessment considered several aspects, which determine the possibility to apply the landscape ecological  knowledge.  These  include  spatial  planning,  spatial  management,  issues  related  to  the  efficiency  assess-ment  of  actions  taken  and  collection  of  data  essential  for  the  decision-making  process.  Individual  problems  were  complemented with conclusions of a general nature.

  • 78.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Att tillämpa landskapsekologiska metoder i stadsplanering2010In: IALE – International Association for Landscape Ecology / [ed] Lisberg Jensen, E., Uppsala: Centrum för biologisk mångfald , 2010, p. 1-54Conference paper (Other academic)
  • 79.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Biodiversity, ecosystem services and renewable energy options2013Conference paper (Other academic)
  • 80.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Energy systems and environmental assessment: the sustainability of renewables2013Conference paper (Other academic)
  • 81.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Förnybar energi och landskap: att planera för mångbruk2012Conference paper (Other academic)
  • 82.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    GIS-based habitat models in spatial planning2007In: Habitat modelling - A tool for managing landscapes?: Report from a workshop held in Sunnersta, Sweden, 14-17 February 2006 / [ed] Brainerd, S.M., Seiler A. and Kastdalen, L., Norsk Institut for Naturforskning , 2007, p. 22-26Conference paper (Other academic)
  • 83.
    Mörtberg, Ulla
    KTH, Superseded Departments, Land and Water Resources Engineering.
    Landscape Ecological Analysis and Assessment in an Urbanising Environment - forest birds as biodiversity indicators2004Doctoral thesis, comprehensive summary (Other scientific)
    Abstract [en]

    To achieve a sustainable development, impacts onbiodiversity of urbanisation, infrastructure, land use changesand other developments must be considered on a landscape andregional scale. Landscape ecology can provide a conceptualframework for the assessment of consequences of long-termdevelopment processes like urbanisation on biodiversity on alandscape scale, and for evaluating the impacts of alternativeplanning scenarios. The aim of this study was to explore theeffects of habitat quality, quantity and connectivity on forestbird diversity in an urban-rural gradient. The purpose of theanalyses was to develop knowledge and methods for integratingbiodiversity issues in planning and assessments in anurbanising environment, on landscape and regional scales.

    The study area was situated in and around Stockholm, thecapital of Sweden, covering the city centre, suburbs andperi-urban areas. Data on breeding forest birds were collectedthrough bird censuses in an urban-suburban gradient. In orderto embrace also the peri-urban areas for a more completeurban-rural gradient, data on two fragmentation-sensitiveforest grouse species were obtained through a questionnaire tohunters in the whole study area. Response variables in theanalyses were forest bird species richness and diversity,relative species richness and occurrence of single sensitivespecies like selected sedentary forest birds, including theforest grouse species, and red list species. Habitat quality,quantity and connectivity were analysed using available data onabiotic conditions, including urban disturbances, andvegetation in geographical information systems. In addition, afield study on vegetation structure and composition wasperformed in a subset of the smaller sample sites.Relationships between the response variables and habitatquality, quantity and connectivity were explored usingstatistical methods like multivariate statistics and regressionmodelling. Further, for some models, spatial dependencies werequantified and accounted for. When habitat models wereretrieved, they were used for spatial predictions of habitatsuitability. They were also applied on future planningscenarios in order to predict and assess the impacts onsensitive species. In the urban-rural gradient, the foreststructure and composition changed, so that in more urban areas,coniferous forest on rich soils, wet forests and wetlandsbecame less abundant and more scattered. Sensitive birdspecies, tied to these habitat types, were shown to besensitive to habitat fragmentation caused by urbanisation.Large, well-connected habitat patches and aggregations ofsuitable habitat in the landscape had a higher probability ofoccupancy when compared to other patches. For the forest grousespecies, effects of car traffic added to the explanation oftheir distribution. By contrast, deciduous forest was stillquite common in predominantly urban areas, due to both latechanges in land use and a history of human preferences. Certainred listed bird species tied to deciduous forest did not seemto be affected by isolation, and also occurred in suitablehabitats in some highly urbanised areas. Furthermore, relativespecies richness in the urban-suburban gradient was related tomulti-layered deciduous forest habitats with a large amount ofdead wood. Such habitats were associated with natural shorelineand with old pastures and parks. From the derived statisticalmodels, describing the relationships between sensitive speciesand environmental variables, predictive habitat maps could becreated for the present situation and for planning scenarios.The predictions of the impacts on habitats of sensitive speciesmade it possible to quantify, integrate and visualise theeffects of urbanisation scenarios on aspects of biodiversity ona landscape scale.

  • 84.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Landscape ecological analysis and assessment in an urbanizing environment2009In: Ecology of Cities and Towns: A Comparative Approach / [ed] McDonnell, M.J., Breuste, J. and Hahs, A.K., New York: Cambridge University Press, 2009, p. 439-455Chapter in book (Refereed)
  • 85.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Methods for environmental assessment of wind power policy and plans2013Conference paper (Other academic)
  • 86.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Strategic environmental assessment of scenarios for wind power plants2012Conference paper (Refereed)
    Abstract [en]

    Increased use of energy from renewable sources is an important part of the measures needed to reduce greenhouse gas emissions and to promote the security of energy supply, promoted by e.g. the EU Renewable Energy Directive. However, potential intrinsic goal conflicts can be anticipated between e.g. different EU Directives, concerning renewable energy and other environmental issues. For example, while implementing renewable energy systems, environmental impacts may occur which conflict with designated habitats and species protected by the EU Birds and Habitats Directives as well as with the European Landscape Convention, promoting human perspectives on landscapes. From a Swedish perspective, the Governmental environmental quality objectives should be considered in policy and planning. Landscape related environmental objectives for archipelagoes, forest and cultural landscapes, among others, may however conflict with future implementation of e.g. wind power technology and associated infrastructure. In this context, assessment of environmental impacts of renewable energy options calls for the application of landscape and regional level approaches in order to find satisfactory solutions and ways forward. The overall aim of the study is to explore opportunities and constraints for large-scale renewable energy systems in Sweden, in particular concerning environmental objectives.

    Methods for strategic environmental assessment involve applying Multi-Criteria Decision Aid (MCDA) in a Geographic Information System (GIS), where scenarios driven by assumed energy demands, energy mix and technological opportunities and constraints are implemented. Localisation of wind power plants and related infrastructure are initially derived using information related to technology, economy, and meteorology. Major environmental impacts concerning human perspectives on liveble landscapes are localised and quantified, such as visibility and sound impacts, while biodiversity impacts are modelled concerning habitat and migration routes for birds and bats, together with potential impacts of infrastructure such as grids and new roads on ecological networks. Expected results are quantified impact assessments, while the GIS-based methods also allow for iteration of the suitability study for integrating environmental aspects in a final set of alternative options. These results are used for a final evaluation of strategic choices in relation to the main environmental objectives in an integrated sustainability appraisal, as part of the strategic environmental assessment.

  • 87.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    The response of species to urban landscape patterns2007In: 25 years of Landscape Ecology: Scientific Principles in Practice: Proceedings of the 7th IALE World Congress, Wageningen, The Netherlands, July 2007 / [ed] R.G.H. Bunce, R.H.G. Jongman, L. Hojas and S. Weel, 2007, p. 195-196Conference paper (Refereed)
  • 88.
    Mörtberg, Ulla
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Urban design, urban planning and approaches to modelling urban birds2010In: 2nd International Conference of Urban Biodiversity and Design, 2010, p. 74-Conference paper (Other academic)
  • 89.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Babelon, Ian
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Malmgren, Stella
    Holmstedt, Cecilia
    Wind power planning in Sweden: The treatment ofbiodiversity and ecosystem services2015In: Conference on Wind Energy and Wildlife Impacts, 10-12 March in Berlin, Germany / [ed] Köppel, J. & Schuster, E., Technische Universität Berlin , 2015, p. 49-Conference paper (Refereed)
  • 90.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Biodiversity in urban areas and applications in strategic planning2007In: Green Structures in the Sustainable City: Urban Management Guidebook V / [ed] Wlodarczyk, D., The Baltic University Press , 2007, p. 33-38Chapter in book (Other academic)
  • 91.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Energy systems and environmental assessment2010Conference paper (Refereed)
  • 92.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Landskapsekologisk planering i och kring tätorter [Landscape ecological planning in and around urban areas, in Swedish]2003In: Vilda djur i stadsmiljö - Tillgång eller problem? / [ed] Bo Carlestål, Stockholm: Kungl. Skogs- och Lantbruksakademien , 2003, Vol. 142, p. 13-17Conference paper (Refereed)
  • 93.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Vad är stadsnära natur och hur planerar man för den?2011In: Naturvårdskedjan: för en effektivare naturvård / [ed] Almstedt Jansson, M., Ebenhard, T. och de Jong, J., Uppsala: Centrum för biologisk mångfald , 2011, p. 73-85Chapter in book (Other academic)
  • 94.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Zetterberg, Andreas
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Gontier, Mikael
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Environmental Management and Assessment.
    Implementation of landscape ecological methods in urban planning2010In: Implementation of Landscape Ecological Knowledge in Practice: Proceedings of the 1st IALE-Europe Thematic Symposium / [ed] Macias, A. & Mizgajski, A, 2010, p. 39-51Conference paper (Refereed)
  • 95.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    de Strasser, Lucia
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Howells, Mark
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Gordon, Sara
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Assessing the energy-water-land use nexus2015Conference paper (Refereed)
    Abstract [en]

    System models addressing the nexus of energy, water and land use in transboundary watersheds. Issues of stakeholder involvement as well as integration of ecosystem aspects in nexus assessments are discussed.

  • 96.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Deal, Brian
    Cvetkovic, Vladimir
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Azcarate, Juan
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Haas, Jan
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geoinformatics.
    Pang, Xi
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Integrating ecosystem services in urban energy trajectories2015Conference paper (Refereed)
  • 97.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Goldenberg, Romain
    Kalantari, Zahra
    Stockholms Universitet.
    Kordas, Olga
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
    Deal, Brian
    University of Illinois Urbana Champaign.
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Cvetkovic, Vladimir
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Integrating ecosystem services in the assessment of urban energy trajectories: A study of the Stockholm Region2017In: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 100, p. 338-349Article in journal (Refereed)
    Abstract [en]

    Urban development trajectories are changing towards compact, energy-efficient cities and renewable energy sources, and this will strongly affect ecosystem services (ES) that cities are dependent on but tend to disregard. Such ES can be provisioning, regulating and cultural ES, around which competition over land resources will increase with energy system shifts. Much of this can be foreseen to take place within urbanising regions that are simultaneously the living environment of a major part of the human population today. In order to inform critical urban policy decisions, tools for integrated assessment of urban energy and transport options and ecosystem services need to be developed. For this purpose, a case study of the Stockholm region was conducted, analysing three scenarios for the future urbanisation of the region, integrating a transport energy perspective and an ES perspective. The results showed that a dense but polycentric development pattern gives more opportunities for sustainable urban development, while the dense monocentric scenario has apparent drawbacks from an ES perspective. The methodology is compatible with a model integration platform for urban policy support and will thus enable integrated policy assessment of complex urban systems, with the goal of increasing their sustainability.

  • 98.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Goldenberg, Romain
    Kalantari, Zahra
    Kordas, Olga
    Deal, Brian
    Balfors, Berit
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Cvetkovic, Vladimir
    Integrating ecosystem services in urban compaction trajectories - A study of the Stockholm Region2016Conference paper (Refereed)
  • 99.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Haas, Jan
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Geoinformatics.
    Zetterberg, Andreas
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
    Franklin, Joel
    KTH, School of Architecture and the Built Environment (ABE), Transport Science, Transport and Location Analysis.
    Jonsson, Daniel
    KTH, School of Architecture and the Built Environment (ABE), Transport Science, Transport and Location Analysis.
    Deal, Brian
    University of Illinois at Urbana-Champaign.
    Urban ecosystems and sustainable urban development-analysing and assessing interacting systems in the Stockholm region2013In: Urban Ecosystems, ISSN 1083-8155, E-ISSN 1573-1642, Vol. 16, no 4, p. 763-782Article in journal (Refereed)
    Abstract [en]

    In order to build competence for sustainability analysis and assessment of urban systems, it is seen as essential to build on models representing urban form, landuse and transportation, urban metabolism, as well as ecological processes. This type of analysis of interacting sub-systems requires an advanced model integration platform, yet open for learning and for further development. Moreover, since the aim is to increase urban experience with ecosystem management in the wide sense, the platform needs to be open and easily available, with high visualisation capacity. For this purpose, the LEAM model was applied to the Stockholm Region and two potential future scenarios were developed, resulting from alternative policies. The scenarios differed widely and the dense urban development of Scenario Compact could be visualised, destroying much of the Greenstructure of Stockholm, while Scenario Urban Nature steered the development more to outer suburbs and some sprawl. For demonstration of the need for further development of biodiversity assessment models, a network model tied to a prioritised ecological profile was applied and altered by the scenarios. It could be shown that the Greenstructure did not support this profile very well. Thus, there is a need for dynamic models for negotiations, finding alternative solutions and interacting with other models. The LEAM Stockholm case study is planned to be further developed, to interact with more advanced transport and land use models, as well as analysing energy systems and urban water issues. This will enable integrated sustainability analysis and assessment of complex urban systems, for integration in the planning process in Stockholm as well as for comparative sustainability studies between different cities, with the goal to build more sustainable urban systems and to increase urban experiences in ecosystem management.

  • 100.
    Mörtberg, Ulla
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Management and Assessment.
    Ihse, Margareta
    Stockholms Universitet, Stockholm.
    Landskapsekologisk analys av Nationalstadsparken: Underlag till Länsstyrelsens program för Nationalstadsparken2006Report (Other academic)
1234 51 - 100 of 159
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf