Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage)
<p>The effects of tillage on soil properties, crop productivity, and global greenhouse gas emissions have been discussed in the last decades. Global ecosystem models have limited capacity to simulate the various effects of tillage. With respect to the decomposition of soil organic matter, they...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2019-06-01
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| Series: | Geoscientific Model Development |
| Online Access: | https://www.geosci-model-dev.net/12/2419/2019/gmd-12-2419-2019.pdf |
| _version_ | 1818532471735582720 |
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| author | F. Lutz F. Lutz T. Herzfeld J. Heinke S. Rolinski S. Schaphoff W. von Bloh J. J. Stoorvogel C. Müller |
| author_facet | F. Lutz F. Lutz T. Herzfeld J. Heinke S. Rolinski S. Schaphoff W. von Bloh J. J. Stoorvogel C. Müller |
| author_sort | F. Lutz |
| collection | DOAJ |
| description | <p>The effects of tillage on soil properties, crop productivity, and
global greenhouse gas emissions have been discussed in the last decades.
Global ecosystem models have limited capacity to simulate the various
effects of tillage. With respect to the decomposition of soil organic
matter, they either assume a constant increase due to tillage or they
ignore the effects of tillage. Hence, they do not allow for analysing the
effects of tillage and cannot evaluate, for example, reduced tillage or
no tillage (referred to here as “no-till”) practises as mitigation practices for climate change. In this paper, we
describe the implementation of tillage-related practices in the global
ecosystem model LPJmL. The extended model is evaluated against reported
differences between tillage and no-till management on several soil
properties. To this end, simulation results are compared with published
meta-analyses on tillage effects. In general, the model is able to reproduce
observed tillage effects on global, as well as regional, patterns of carbon
and water fluxes. However, modelled N fluxes deviate from the literature values and
need further study. The addition of the tillage module to LPJmL5 opens
up opportunities to assess the impact of agricultural soil management practices
under different scenarios with implications for agricultural productivity,
carbon sequestration, greenhouse gas emissions, and other environmental
indicators.</p> |
| first_indexed | 2024-12-11T17:45:58Z |
| format | Article |
| id | doaj.art-c31a2956d5f34ceea4a2e0e7bcc2e180 |
| institution | Directory Open Access Journal |
| issn | 1991-959X 1991-9603 |
| language | English |
| last_indexed | 2024-12-11T17:45:58Z |
| publishDate | 2019-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Geoscientific Model Development |
| spelling | doaj.art-c31a2956d5f34ceea4a2e0e7bcc2e1802022-12-22T00:56:23ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032019-06-01122419244010.5194/gmd-12-2419-2019Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage)F. Lutz0F. Lutz1T. Herzfeld2J. Heinke3S. Rolinski4S. Schaphoff5W. von Bloh6J. J. Stoorvogel7C. Müller8Potsdam Institute for Climate Impact Research (PIK), member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, GermanyWageningen University, Soil Geography and Landscape Group, P.O. Box 47, 6700 AA Wageningen, the NetherlandsPotsdam Institute for Climate Impact Research (PIK), member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, GermanyPotsdam Institute for Climate Impact Research (PIK), member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, GermanyPotsdam Institute for Climate Impact Research (PIK), member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, GermanyPotsdam Institute for Climate Impact Research (PIK), member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, GermanyPotsdam Institute for Climate Impact Research (PIK), member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, GermanyWageningen University, Soil Geography and Landscape Group, P.O. Box 47, 6700 AA Wageningen, the NetherlandsPotsdam Institute for Climate Impact Research (PIK), member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, Germany<p>The effects of tillage on soil properties, crop productivity, and global greenhouse gas emissions have been discussed in the last decades. Global ecosystem models have limited capacity to simulate the various effects of tillage. With respect to the decomposition of soil organic matter, they either assume a constant increase due to tillage or they ignore the effects of tillage. Hence, they do not allow for analysing the effects of tillage and cannot evaluate, for example, reduced tillage or no tillage (referred to here as “no-till”) practises as mitigation practices for climate change. In this paper, we describe the implementation of tillage-related practices in the global ecosystem model LPJmL. The extended model is evaluated against reported differences between tillage and no-till management on several soil properties. To this end, simulation results are compared with published meta-analyses on tillage effects. In general, the model is able to reproduce observed tillage effects on global, as well as regional, patterns of carbon and water fluxes. However, modelled N fluxes deviate from the literature values and need further study. The addition of the tillage module to LPJmL5 opens up opportunities to assess the impact of agricultural soil management practices under different scenarios with implications for agricultural productivity, carbon sequestration, greenhouse gas emissions, and other environmental indicators.</p>https://www.geosci-model-dev.net/12/2419/2019/gmd-12-2419-2019.pdf |
| spellingShingle | F. Lutz F. Lutz T. Herzfeld J. Heinke S. Rolinski S. Schaphoff W. von Bloh J. J. Stoorvogel C. Müller Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage) Geoscientific Model Development |
| title | Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage) |
| title_full | Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage) |
| title_fullStr | Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage) |
| title_full_unstemmed | Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage) |
| title_short | Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage) |
| title_sort | simulating the effect of tillage practices with the global ecosystem model lpjml version 5 0 tillage |
| url | https://www.geosci-model-dev.net/12/2419/2019/gmd-12-2419-2019.pdf |
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