Change search
ReferencesLink to record
Permanent link

Direct link
Forests on drained agricultural peatland are potentially large sources of greenhouse gases - insights from a full rotation period simulation
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, Land and Water Resources Engineering.
Show others and affiliations
2016 (English)In: Biogeosciences, ISSN 1726-4170, E-ISSN 1726-4189, Vol. 13, no 8, 2305-2318 p.Article in journal (Refereed) PublishedText
Abstract [en]

The CoupModel was used to simulate a Norway spruce forest on fertile drained peat over 60 years, from planting in 1951 until 2011, describing abiotic, biotic and greenhouse gas (GHG) emissions (CO2 and N2O). By calibrating the model against tree ring data a "vegetation fitted" model was obtained by which we were able to describe the fluxes and controlling factors over the 60 years. We discuss some conceptual issues relevant to improving the model in order to better understand peat soil simulations. However, the present model was able to describe the most important ecosystem dynamics such as the plant biomass development and GHG emissions. The GHG fluxes are composed of two important quantities, the spruce forest carbon (C) uptake, 413 g C m(-2) yr(-1) and the decomposition of peat soil, 399 g C m(-2) yr(-1) . N2O emissions contribute to the GHG emissions by up to 0.7 g N m(-2) yr(-1), corresponding to 76 g C m(-2) yr(-1) . The 60-year old spruce forest has an accumulated biomass of 16.0 kg C m(-2) (corresponding to 60 kg CO2 m(-2)). However, over this period, 26.4 kg C m(-2) (97 kg CO2 eq m(-2)) has been added to the atmosphere, as both CO2 and N2O originating from the peat soil and, indirectly, from forest thinning products, which we assume have a short lifetime. We conclude that after harvest at an age of 80 years, most of the stored biomass carbon is liable to be released, the system having captured C only temporarily and with a cost of disappeared peat, adding CO2 to the atmosphere.

Place, publisher, year, edition, pages
Copernicus GmbH , 2016. Vol. 13, no 8, 2305-2318 p.
National Category
Geosciences, Multidisciplinary
Identifiers
URN: urn:nbn:se:kth:diva-189403DOI: 10.5194/bg-13-2305-2016ISI: 000377276700006ScopusID: 2-s2.0-84966365367OAI: oai:DiVA.org:kth-189403DiVA: diva2:947202
Note

QC 20160707

Available from: 2016-07-07 Created: 2016-07-04 Last updated: 2016-07-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Jansson, Per-ErikSvensson, Magnus
By organisation
Land and Water Resources Engineering
In the same journal
Biogeosciences
Geosciences, Multidisciplinary

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 13 hits
ReferencesLink to record
Permanent link

Direct link