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Network Based Tools and Indicators for Landscape Ecological Assessments, Planning, and Design
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering. (Environmental Management and Assessment)
2009 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Land use change constitutes a primary driving force in shaping social-ecological systems world wide, and its effects reach far beyond the directly impacted areas. Graph based landscape ecological tools have become established as a promising way to efficiently explore and analyze the complex, spatial systems dynamics of ecological networks in physical landscapes. However, little attention has been paid to making these approaches operational within ecological assessments, physical planning, and design. This thesis presents a network based, landscape-ecological tool that can be implemented for effective use by practitioners within physical planning and design, and ecological assessments related to these activities. The tool is based on an ecological profile system, a common generalized network model of the ecological infrastructure, graph theoretic metrics, and a spatially explicit, geographically defined representation, deployable in a GIS. Graph theoretic metrics and analysis techniques are able to capture the spatio-temporal dynamics of complex systems, and the generalized network model places the graph theoretic toolbox in a geographically defined landscape. This provides completely new insights for physical planning, and environmental assessment activities. The design of the model is based on the experience gained through seven real-world cases, commissioned by different governmental organizations within Stockholm County. A participatory approach was used in these case studies, involving stakeholders of different backgrounds, in which the tool proved to be flexible and effective in the communication and negotiation of indicators, targets, and impacts. In addition to successful impact predictions for alternative planning scenarios, the tool was able to highlight critical ecological structures within the landscape, both from a system-centric, and a site-centric perspective. In already being deployed and used in planning, assessments, inventories, and monitoring by several of the involved organizations, the tool has proved to effectively meet some of the challenges of application in a multidisciplinary landscape.

Place, publisher, year, edition, pages
Stockholm: Land and Water Resources Engineering , 2009. , ix, 47 p.
Series
Trita-LWR. LIC, ISSN 1650-8629 ; 2045
Keyword [en]
Least-cost modeling, Functional connectivity, Environmental planning tool, Resilience, Spatial redundancy, Ecological integrity, Landscape Ecology, Graph Theory, Ecological Network Graphs, Biodiversity, Conservation Biology, Urban Planning, Regional Planning, EIA, SEA, Environmental Assessment, Ecological Indicator, Impact prediction, Habitat suitability, Species distribution, Urban ecology, GIS, Urbanization
Keyword [sv]
Miljöbedömningsverktyg, Landskapsplanering, Resiliens, Ekologisk integritet, Landskapsekologi, Grafteori, Ekologiska nätverk, Biologisk mångfald, Bevarandebiologi, Urban planering, Regional planering, MKB, SMB, Miljöbedömning, Ekologisk indikator, Konsekvensbedömning, Habitatmodellering, GIS, Urbanisering
National Category
Landscape Architecture Other Environmental Engineering Ecology
Identifiers
URN: urn:nbn:se:kth:diva-10011ISBN: 978-91-7415-249-4 (print)OAI: oai:DiVA.org:kth-10011DiVA: diva2:201312
Presentation
2009-03-20, V3, Teknikringen 72, Stockholm, 13:15 (English)
Opponent
Supervisors
Available from: 2009-03-06 Created: 2009-03-03 Last updated: 2010-11-03Bibliographically approved
List of papers
1. Urban landscape ecological approaches - Lessons from integrating biodiversity and habitat modelling in planning
Open this publication in new window or tab >>Urban landscape ecological approaches - Lessons from integrating biodiversity and habitat modelling in planning
(English)Manuscript (preprint) (Other academic)
National Category
Landscape Architecture Environmental Sciences
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-25863 (URN)
Note

QC 20101103

Available from: 2010-11-03 Created: 2010-11-03 Last updated: 2016-11-02Bibliographically approved
2. Making graph theory operational for landscape ecological assessments, planning, and design
Open this publication in new window or tab >>Making graph theory operational for landscape ecological assessments, planning, and design
2010 (English)In: Landscape and Urban Planning, ISSN 0169-2046, E-ISSN 1872-6062, Vol. 95, no 4, 181-191 p.Article in journal (Refereed) Published
Abstract [en]

Graph theory and network analysis have become established as promising ways to efficiently explore and analyze landscape or habitat connectivity. However, little attention has been paid to making these graph-theoretic approaches operational within landscape ecological assessments, planning. and design. In this paper, a set of both theoretical and practical methodological developments are presented to address this issue. In highly fragmented landscapes, many species are restricted to moving among small, scattered patches of different resources. instead of one, large patch. A life-cycle based approach is therefore introduced, in which a metapatch is constructed, spanning over these resources, scattered across the landscape. The importance of spatially explicit and geographically defined representations of the network in urban and regional planning and design is stressed, and appropriate, context-dependent visualizations of these are suggested based on experience from real-world planning cases. The study moves beyond the issue of conservation of currently important structures, and seeks to identify suitable redesigns of the landscape to improve its social-ecological qualities, or increase resilience. By introducing both a system-centric and a site-centric analysis, two conflicting perspectives can be addressed. The first answers the question "what can I do for the network", and the second, "what can the network do for me". A method for typical planning strategies within each of these perspectives is presented. To illustrate the basic principles of the proposed methods, an ecological study on the European common toad (Bufo bufo) in Stockholm. Sweden is presented, using the betweenness centrality index to capture important stepping-stone structures.

Keyword
Least-cost modeling, Functional connectivity, Environmental planning, European common toad, Metapatch, Spatial redundancy
National Category
Landscape Architecture
Identifiers
urn:nbn:se:kth:diva-25868 (URN)10.1016/j.landurbplan.2010.01.002 (DOI)000277501800005 ()2-s2.0-77950019384 (Scopus ID)
Funder
FormasStandUp
Note

QC 20101103. Uppdaterad från Submitted till Published (20101103). Tidigare titel "Linking Graph Theory to Operational Maps in Ecological Assessments, Planning, and Design.".

Available from: 2010-11-03 Created: 2010-11-03 Last updated: 2017-12-12Bibliographically approved

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