Liu Xia1,Yao Xiaoyou2,Yuan Li1,Niu Yong3,Zhang Guangcan1,Zhang Ronghua1,Chang Cheng1
1.Soil and Water Conservation Department of Forestry College,Key Laboratory of Agricultural Ecology and Environment,Shandong Agricultural University,271018,Tai'an,Shandong;2.Soil and Water Conservation Division of Huaihe River Commission of Water Resources
Ministry,233001,Bengbu,Anhui;3.College of Soil and Water Conservation,Beijing Forestry University,100083,Beijing:China