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REMOTE SENSING FOR LAND & RESOURCES    2013, Vol. 25 Issue (3) : 171-177     DOI: 10.6046/gtzyyg.2013.03.28
Technology Application |
Estimation of soil erosion in red earth hilly area based on RS and USLE
HU Wenmin, ZHOU Weijun, YU Yuhang, BAO Chunhong, XIE Hongxia
College of Resouces and Environment, Hunan Agricultural University, Changsha 410128, China
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Abstract  

With Guangheqiao basin in Zixing City of Hunan Province as the study area and by adopting field investigation and sampling, laboratory measurement and analysis, RS techniques and mathematical modeling, the authors calculated each parameter of the universal soil loss equation (USLE) regarding this tributary and estimated the soil erosion. The results show that the value of K parameter (soil erodibility) is between 0.14 to 0.42 t·hm2·h·hm-2·MJ-1·mm-1 with a mean of 0.27 t·hm2·h·hm-2·MJ-1·mm-1. This implies that the soil erodibility is at the medium level. The soil erosion module varies from 0 to 3 817 t·hm-2·a-1 with a mean of 78 t·hm-2·a-1, and the soil loss has reached 292 266 t·a-1. Thus, the soil erosion intensity is high.

Keywords passive microwave      leaf area index(LAI)      growth model      Matrix-Doubling model     
:  P 951  
  TP 79  
Issue Date: 03 July 2013
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MA Hongzhang
LIU Sumei
ZHU Xiaobo
SUN Genyun
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LIU Qinhuo
Cite this article:   
MA Hongzhang,LIU Sumei,ZHU Xiaobo, et al. Estimation of soil erosion in red earth hilly area based on RS and USLE[J]. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(3): 171-177.
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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2013.03.28     OR     https://www.gtzyyg.com/EN/Y2013/V25/I3/171

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