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Simulation of NO and N2O emissions from a spruce forest during a freeze/thaw event using an N-flux submodel from the PnET-N-DNDC model integrated to CoupModel
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering, Environmental Geochemistry and Ecotechnology.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
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2008 (English)In: Ecological Modelling, ISSN 0304-3800, Vol. 216, no 1, 18-30 p.Article in journal (Refereed) Published
Abstract [en]

The amount of nitrogen gases (N2O, No and N-2) emitted from forest soils depends on interactions between soil properties, climatic factors and soil management. To increase the understanding of nitrogen processes in soil ecosystems, two dynamic models, CoupModel (coupled heat and mass transfer model for soil-plant-atmosphere systems) and the denitrification-decomposition (DNDC) model were selected. Both are dynamic models with different submodels for soil, vegetation, hydrology and climate system. CoupModel has a higher degree of detail on soil physical and abiotic components, whereas the DNDC model contains details of microbiological processes involved in production of nitrogen gases. To improve the previous simple submodel of nitrogen emission in CoupModel, we included a submodel corresponding to the forest version of DNDC containing photosynthesis/evapotranspiration-nitrogen (PnET-N-DNDC model). The nitrogen (N) and carbon

Place, publisher, year, edition, pages
2008. Vol. 216, no 1, 18-30 p.
Keyword [en]
forest ecosystem modelling, NO emission, N2O emission, CoupModel, DNDC, model, trace gas fluxes, 3-year continuous record, process-oriented model, nitrous-oxide, saturated spruce, field-scale, limed soil, denitrification, nitrification, ecosystems
URN: urn:nbn:se:kth:diva-17746DOI: 10.1016/j.ecolmodel.2008.04.012ISI: 000258173700002ScopusID: 2-s2.0-45049084979OAI: diva2:335791
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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