[Fang, Linchuan; Qiu, Tianyi] Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China.
[Yu, Jialuo] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China.
[He, Liyuan] San Diego State Univ, Biol Dept, San Diego, CA USA.
[Liu, Ji] Cent China Normal Univ, Hubei Prov Key Lab Geog Proc Anal & Simulat, Wuhan 430079, Peoples R China.
[Zhao, Shuling; Duan, Chengjiao; Fang, Linchuan; Cui, Qingliang] Inst Soil & Water Conservat CAS & MWR, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China.