SATELLITE REMOTE-SENSING FOR SOIL-EROSION MODELING USING THE ANSWERS MODEL

被引:12
|
作者
SHARMA, KD
SINGH, S
机构
[1] Central Arid Zone Research Institute, Jodhpur
关键词
D O I
10.1080/02626669509491408
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
The distributed parameter model ANSWERS was used to predict runoff and soil loss from three agricultural watersheds in the arid zone of India. Model input parameters such as landform, drainage, soil and land use/land cover were derived from Landsat Thematic Mapper false colour composites and limited ground truth. The model predicted hydrographs and sediment graphs within acceptable limits. ANSWERS underpredicted the total soil loss by factors of 2.6 to 3.6. Reasons for these results are discussed.
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页码:259 / 272
页数:14
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