Key Laboratory of Disaster Survey and Mechanism Simulation of Shaanxi Province/Baoji University of Arts and Sciences;
Baoji 721007;
P.R. China;
Institute of Soil and Water Conservation;
Chinese Academy of Sciences/Ministry of Water Resources/Northwest A&F University;
Yangling 712100;
P.R.China;
College of Tourism and Environmental Sciences;
Shaanxi Normal University;
Xi'an 710062;
P.R.China;