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Evaluation biophysique des services écosystémiques des sols cultivés - Adaptation de l’information pédologique pour la modélisation dynamique du fonctionnement des sols

Abstract : Soils provide many ecosystem services essential to sustain human life and socio-economic development. However, soils are subjected to increasing pressure from current activities, including intensive land use to satisfy demands of a growing population for food and energy. To improve soil management, decision-support tools that consider soil diversity are required to assess impacts of human activities on soil dynamics. The objective of this study was to develop and validate a methodology to enhance existing pedological information (1: 250,000) using spatial disaggregation technique in order to estimate in space soil ecosystem services.By combining field observations, disaggregated soil data with known accuracy and dynamic modelling, six soil ecosystem services indicators were firstly assessed, to be then used to evaluate the sensitivity of estimated soil ecosystem services to the source of soil information. The main results highlight the contribution of digital mapping to produce relevant pedological information for assessing soil ecosystem services from cultivated soils. Future research must be performed to improve pedological information availability and soil ecosystem services assessment procedure by coupling dynamic coupling and proxies. Overall, this work emphasize the need to produce soils consideration in sustainable management strategies and territorial planning.
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Submitted on : Friday, September 10, 2021 - 10:06:38 AM
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  • HAL Id : tel-03340240, version 1

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Yosra Ellili. Evaluation biophysique des services écosystémiques des sols cultivés - Adaptation de l’information pédologique pour la modélisation dynamique du fonctionnement des sols. Sciences de la Terre. Agrocampus Ouest, 2019. Français. ⟨NNT : 2019NSARD087⟩. ⟨tel-03340240⟩

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