Wang Ning1,2,Jia Yanfeng1,2,Jiao Juying1,Bai Wenjuan1,2,Zhang Zhenguo1,2
1.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Northwest A&F
University,712100,Yangling,Shaanxi;2.Graduate School of Chinese Academy of Sciences,100049,Beijing:China