1SAS - Sol Agro et hydrosystème Spatialisation (UMR 1069, Sol Agro et Hydrosystème Spatialisation, Batiment 13, Agrocampus Ouest, 65 rue de Saint Brieuc CS 84215 35042 Rennes CEDEX - France)
AGROCAMPUS OUEST (Institut Supérieur des Sciences Agronomiques, Agroalimentaires, Horticoles et du Paysage - 65, rue de St Brieuc - CS 84215 - 35042 Rennes cedex - France)
Abstract : Spatial studies on soil organic matter assessment have recently moved from plot and field scale approaches to larger scales, to tackle new issues linked to soil carbon sequestration and landscape planning. Our objective is to present an overview of existing data and methodological approaches to modelling SOM at landscape and regional scales. We briefly review the methods developed to model SOM at the plot scale. Then we consider existing data and modelling approaches at larger spatial scales and discuss several emerging issues at those scales such as representation of soil and farming practices variability, landscape features and, validation processes. Finally, we discuss the interest and limits of the current modelling approaches and outline a framework for modelling SOM and related functions at the landscape scale.
https://hal-agrocampus-ouest.archives-ouvertes.fr/hal-00729991
Contributeur : Céline Martel
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Soumis le : vendredi 7 septembre 2012 - 16:04:09
Dernière modification le : lundi 21 janvier 2019 - 10:08:11
Christian Walter, D.A. Angers, D. Arrouays, V. Viaud. Data and methods to assess soil organic matter at regional scales. Pedometrics 2009, Aug 2009, Beijing (CN), China. 〈hal-00729991〉
