论文信息 - Erosion assessment in the Brazilian Cerrados using multi - temporal SAR imagery

Erosion assessment in the Brazilian Cerrados using multi - temporal SAR imagery

Regional assessment of soil erosion is an important step in the conservation of natural resources. A general problem is the availability of accurate regional data, especially in tropical regions. SAR imagery can play a role through direct detection of erosion features and the assessment of factors controlling erosion. This study presents preliminary results on the application of multitemporal ENVISAT ASAR and ERS SAR imagery for erosion assessment in a 10*10 km grassland area in the Brazilian Cerrados. Large gullies could be identified on individual SAR images. Colour composites revealed spatial patterns of land use and management, being an important erosion-controlling factor. For accurate erosion risk mapping, integration with other spatial data, like a DEM, is required

Anton Vrieling | Silvio Carlos Rodrigues

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