[1]WANG Hongyan,LI Qiangzi,WU Liqiao,et al.Dynamic Monitoring and Sensitivity Evaluation of Soil Erosion Based on RS and GIS[J].Research of Soil and Water Conservation,2015,22(02):64-68.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 02
Page number:
64-68
Column:
Public date:
2015-04-28
- Title:
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Dynamic Monitoring and Sensitivity Evaluation of Soil Erosion Based on RS and GIS
- Author(s):
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WANG Hongyan1, LI Qiangzi1, WU Liqiao2, DING Leilong1,3, ZHANG Lei1, DU Xin1
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1. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;
2. Scientific Institute of Pearl River Water Resources Protection, Guangzhou 510611, China;
3. China University of Geosciences, Beijing 100083, China
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- Keywords:
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soil erosion; sensitivity evaluation; dynamic monitoring; RS; GIS
- CLC:
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S157
- DOI:
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- Abstract:
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With the support of remote sensing and GIS, the sensitivity of soil erosion in Red River district was studied based on the Landsat-5 TM image and combining with high-precision land use data and DEM. Based on these, the dynamic monitoring of soil erosion sensitivity in 1990—2010 was analyzed. The results showed that the soil erosion sensitivity in Red River district was mainly at mild and moderate degree, the sensitivity of soil erosion had become better from 1990 to 2010. The largest change area of the soil erosion sensitivity was from moderate level to mild degree, the transformed areas of 1990—2000 and 2000—2010 were 2 736.24 km2 and 2 462.09 km2, respectively. The soil erosion sensitivity conversion which was the other erosion sensitivity converted to mild, and micro soil erosion sensitivity from 1990 to 2000 mainly concentrated in the middle of the Red River district, however, the change area from 2000 to 2010 was different from that from 1990—2000, which was mainly in the east of the Red River district. Overall, in response to the national soil erosion control measures, the performed water and soil conservation measures in Red River district were very effective and the eco-environment gradually improved.