Liu Zhen1,Guo Suoyan2,Zhang Wencong2,Shi Liren3,Xie Mingshu4,Chen Fayang2
1.Dept. of Soil and Water Conservation, Ministry of Water Resources; 2.Monitoring Center of Soil and Water Conservation, Ministry of Water
Resources:100053,Beijing; 3.Committee of Yangtze River, Ministry of Water Resources, 430010,Wuhan; 4.Bejing Forestry University, 100083,Beijing:China