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Evaluación de la distribución de la materia orgánica del horizonte superficial del suelo mediante el uso de imágenes satelitales. Aplicación de metodología SIG. Caso : cuencaq del arroyo Sanchez - Uruguay

Achkar, Marcel. Evaluación de la distribución de la materia orgánica del horizonte superficial del suelo mediante el uso de imágenes satelitales. Aplicación de metodología SIG. Caso : cuencaq del arroyo Sanchez - Uruguay. PhD, Institut National Polytechnique de Toulouse, 2005

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Official URL: http://ethesis.inp-toulouse.fr/archive/00000254/

Abstract

The environmental context and the agricultural change subject the soils to an important erosion, which results in particular in a transfer of the organic matter (MO) into the drain system. The SIG and the teledetection are particularly well adapted for the studies of behavior of natural systems, soils and vegetation. This work analyzes, with multitemporelles data of teledetection – multiresolutions and a SIG, the evolution of the vegetable productivity, the distribution of the MO of the soils, the hydrological assessment and the surface run-off. A time series of images NDVI of instrument VEGETATION (SPOT4) is used to evaluate its potential to determine the behavior of the pedo-vegetable units and the hydrological assessment. Landsat images are used for the evaluation of the spatial distribution of MO in the naked soils. The first results show the relevance of the approach used for study and the follow-up of the pedo-vegetable units, the hydrological assessment and the distribution space of MO in a heterogeneous and complex landscape.

Item Type:PhD Thesis
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
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Research Director:
Kaemmerer, Michel and Lefevre, Marie-José
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