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Cartographier les services écosystémiques : quelles données, quels modèles, quelles incertitudes ? Exemple autour du bassin de vie de Grenoble
Abstract : The evolution of institutional and policy frameworks for Ecosystem Services (ES), especially the
new 2016 biodiversity legislation in France, make accounting for ES in land use management
mandatory. This requires the use of spatially explicit information, and therefore the
development of models to map ES. Most models are based on or use Land Use or Land Cover maps
(LU/LC) as a proxy. Using a highly accurate spatialized LU/LC database, we applied or adapted
models to map 15 ES. We show that depending on the implication of the LU/LC database as input
to the models, the type of model (proxy vs. process based) and the processes modeled, the
resulting spatial patterns are more or less dependent on the LU/LC database. The critical analysis
of limits and uncertainties in the LU/LC mapping process (in general and for our database in
particular), and the use of these maps for modelling ES showed : 1 - the benefits, especially in
agricultural areas, of precise description and monitoring of LU/LC inter-annual dynamics for the
quantification of ES supply ; 2- the consequences of LU/LC typological limits for the
quantification of ES, especially in our work in forest and semi-natural areas. The use of remote
sensing should support a serious typological improvement to better characterize the LU/LC and
also use as independent input data in ES models.
Cited literature [28 references]
https://hal.inria.fr/hal-01675801
Contributor : Pierre-Yves Longaretti <>
Submitted on : Thursday, January 4, 2018 - 7:31:58 PM
Last modification on : Thursday, March 26, 2020 - 8:49:38 PM
Document(s) archivé(s) le : Friday, May 4, 2018 - 10:30:09 AM
Contributor : Pierre-Yves Longaretti <>
Submitted on : Thursday, January 4, 2018 - 7:31:58 PM
Last modification on : Thursday, March 26, 2020 - 8:49:38 PM
Document(s) archivé(s) le : Friday, May 4, 2018 - 10:30:09 AM
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eue-1629.pdf
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