La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants
Soil heterotrophic respiration in croplands: description of important driving factors and comparison of existing semi-mechanistic models. Soil heterotrophic respiration is a complex process which is governed by many biotic and abiotic factors. More specifically, in the agricultural ecosystems the in...
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Presses Agronomiques de Gembloux
2010-01-01
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Online Access: | http://www.pressesagro.be/base/text/v14n4/707.pdf |
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doaj-7c6bdb11b3df406cbe61982548b4b0862020-11-25T00:47:53ZengPresses Agronomiques de GemblouxBiotechnologie, Agronomie, Société et Environnement1370-62331780-45072010-01-01144707717La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existantsBuysse, P.Aubinet, M.Soil heterotrophic respiration in croplands: description of important driving factors and comparison of existing semi-mechanistic models. Soil heterotrophic respiration is a complex process which is governed by many biotic and abiotic factors. More specifically, in the agricultural ecosystems the influence of cultural practices and residue management techniques is important. Global change impacts on the phenomenon are still unclear. Some studies suggest that a positive feedback may occur. Therefore, it is necessary to get to a better knowledge of the mechanisms involved. To reach this goal, many semi-mechanistic models have been developed. Compared to empiric models, they allow a better understanding of soil carbon dynamics by distributing total soil carbon content into several pools. This carbon allocation is based on carbon decomposition constants. However, these models work at very different spatial and temporal scales and many differences exist between them. These ones are put forward in this paper and the main biotic and abiotic soil heterotrophic respiration factors are also described. http://www.pressesagro.be/base/text/v14n4/707.pdfSoil heterotrophic respirationcroplandsprocess descriptionsemi-mechanistic models |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Buysse, P. Aubinet, M. |
spellingShingle |
Buysse, P. Aubinet, M. La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants Biotechnologie, Agronomie, Société et Environnement Soil heterotrophic respiration croplands process description semi-mechanistic models |
author_facet |
Buysse, P. Aubinet, M. |
author_sort |
Buysse, P. |
title |
La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants |
title_short |
La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants |
title_full |
La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants |
title_fullStr |
La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants |
title_full_unstemmed |
La respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants |
title_sort |
la respiration hétérotrophe dans les sols agricoles : description des facteurs importants et comparaison de modèles semi-mécanistes existants |
publisher |
Presses Agronomiques de Gembloux |
series |
Biotechnologie, Agronomie, Société et Environnement |
issn |
1370-6233 1780-4507 |
publishDate |
2010-01-01 |
description |
Soil heterotrophic respiration in croplands: description of important driving factors and comparison of existing semi-mechanistic models. Soil heterotrophic respiration is a complex process which is governed by many biotic and abiotic factors. More specifically, in the agricultural ecosystems the influence of cultural practices and residue management techniques is important. Global change impacts on the phenomenon are still unclear. Some studies suggest that a positive feedback may occur. Therefore, it is necessary to get to a better knowledge of the mechanisms involved. To reach this goal, many semi-mechanistic models have been developed. Compared to empiric models, they allow a better understanding of soil carbon dynamics by distributing total soil carbon content into several pools. This carbon allocation is based on carbon decomposition constants. However, these models work at very different spatial and temporal scales and many differences exist between them. These ones are put forward in this paper and the main biotic and abiotic soil heterotrophic respiration factors are also described. |
topic |
Soil heterotrophic respiration croplands process description semi-mechanistic models |
url |
http://www.pressesagro.be/base/text/v14n4/707.pdf |
work_keys_str_mv |
AT buyssep larespirationheterotrophedanslessolsagricolesdescriptiondesfacteursimportantsetcomparaisondemodelessemimecanistesexistants AT aubinetm larespirationheterotrophedanslessolsagricolesdescriptiondesfacteursimportantsetcomparaisondemodelessemimecanistesexistants |
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1725257931880923136 |