Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC Model
With global warming, arable land in boreal regions is tending to expand into high latitude regions in the northern hemisphere. This entails certain risks; such that inappropriate management could result in previously stable carbon sinks becoming sources. Agroecological models are an important tool f...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Land |
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| Online Access: | https://www.mdpi.com/2073-445X/11/11/1947 |
| _version_ | 1797467620578951168 |
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| author | Daniel Forster Jia Deng Matthew Tom Harrison Narasinha Shurpali |
| author_facet | Daniel Forster Jia Deng Matthew Tom Harrison Narasinha Shurpali |
| author_sort | Daniel Forster |
| collection | DOAJ |
| description | With global warming, arable land in boreal regions is tending to expand into high latitude regions in the northern hemisphere. This entails certain risks; such that inappropriate management could result in previously stable carbon sinks becoming sources. Agroecological models are an important tool for assessing the sustainability of long-term management, yet applications of such models in boreal zones are scarce. We collated eddy-covariance, soil climate and biomass data to evaluate the simulation of GHG emissions from grassland in eastern Finland using the process-based model DNDC. We simulated gross primary production (GPP), net ecosystem exchange (NEE) and ecosystem respiration (Reco) with fair performance. Soil climate, soil temperature and soil moisture at 5 cm were excellent, and soil moisture at 20 cm was good. However, the model overestimated NEE and Reco following crop termination and tillage events. These results indicate that DNDC can satisfactorily simulate GHG fluxes in a boreal grassland setting, but further work is needed, particularly in simulated second biomass cuts, the (>20 cm) soil layers and model response to management transitions between crop types, cultivation, and land use change. |
| first_indexed | 2024-03-09T18:56:16Z |
| format | Article |
| id | doaj.art-f5e611eaa3034e78ba8b8e97d64c612d |
| institution | Directory Open Access Journal |
| issn | 2073-445X |
| language | English |
| last_indexed | 2024-03-09T18:56:16Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Land |
| spelling | doaj.art-f5e611eaa3034e78ba8b8e97d64c612d2023-11-24T05:28:02ZengMDPI AGLand2073-445X2022-11-011111194710.3390/land11111947Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC ModelDaniel Forster0Jia Deng1Matthew Tom Harrison2Narasinha Shurpali3Natural Resources Institute Finland (Luke), Halolantie 31 A, 71750 Maaninka, FinlandEarth Systems Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, 39 College Road, Durham, NH 03824, USATasmanian Institute of Agriculture, University of Tasmania, Newnham Drive, Launceston, TAS 7248, AustraliaNatural Resources Institute Finland (Luke), Halolantie 31 A, 71750 Maaninka, FinlandWith global warming, arable land in boreal regions is tending to expand into high latitude regions in the northern hemisphere. This entails certain risks; such that inappropriate management could result in previously stable carbon sinks becoming sources. Agroecological models are an important tool for assessing the sustainability of long-term management, yet applications of such models in boreal zones are scarce. We collated eddy-covariance, soil climate and biomass data to evaluate the simulation of GHG emissions from grassland in eastern Finland using the process-based model DNDC. We simulated gross primary production (GPP), net ecosystem exchange (NEE) and ecosystem respiration (Reco) with fair performance. Soil climate, soil temperature and soil moisture at 5 cm were excellent, and soil moisture at 20 cm was good. However, the model overestimated NEE and Reco following crop termination and tillage events. These results indicate that DNDC can satisfactorily simulate GHG fluxes in a boreal grassland setting, but further work is needed, particularly in simulated second biomass cuts, the (>20 cm) soil layers and model response to management transitions between crop types, cultivation, and land use change.https://www.mdpi.com/2073-445X/11/11/1947ecophysiological modellingboreal agriculturegreenhouse gasesmodel evaluationDNDCsoil organic carbon |
| spellingShingle | Daniel Forster Jia Deng Matthew Tom Harrison Narasinha Shurpali Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC Model Land ecophysiological modelling boreal agriculture greenhouse gases model evaluation DNDC soil organic carbon |
| title | Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC Model |
| title_full | Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC Model |
| title_fullStr | Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC Model |
| title_full_unstemmed | Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC Model |
| title_short | Simulating Soil-Plant-Climate Interactions and Greenhouse Gas Exchange in Boreal Grasslands Using the DNDC Model |
| title_sort | simulating soil plant climate interactions and greenhouse gas exchange in boreal grasslands using the dndc model |
| topic | ecophysiological modelling boreal agriculture greenhouse gases model evaluation DNDC soil organic carbon |
| url | https://www.mdpi.com/2073-445X/11/11/1947 |
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