Assessing soil erosion using USLE model and MODIS data in the Guangdong, China

3rd International Symposium on Earth Observation for Arid and Semi-Arid Environments

Gao, Feng^1,2 ; Wang, Yunpeng^1 ; Yang, Jingxue^3

Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou

510640, China^1

University of Chinese Academy of Sciences, Beijing

100049, China^2

Guangdong Research Institute of Water Resources and Hydropower, 510610, China^3

关键词: Economic development;    Human activities;    Land-cover types;    Sensitive area;    Soil erosion;    Soil loss;    Universal soil loss equation;    USLE-modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/74/1/012007/pdf
DOI  :  10.1088/1755-1315/74/1/012007

来源: IOP

【 摘 要 】

In this study, soil erosion in the Guangdong, China during 2012 was quantitatively assessed using Universal Soil Loss Equation (USLE). The parameters of the model were calculated using GIS and MODIS data. The spatial distribution of the average annual soil loss on grid basis was mapped. The estimated average annual soil erosion in Guangdong in 2012 is about 2294.47t/ (km2.a). Four high sensitive area of soil erosion in Guangdong in 2012 was found. The key factors of these four high sensitive areas of soil erosion were significantly contributed to the land cover types, rainfall and Economic development and human activities.