[1] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Fac Geog Sci, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Fac Geog Sci, Coll Resources Sci & Technol, Beijing 100875, Peoples R China
[3] Baoding Vocat & Tech Coll, Dept Econ & Management, Baoding 071000, Peoples R China
[4] Brno Univ Technol VUT Brno, SPIL, NETME Ctr, Fac Mech Engn, Fac Mech Engn,Tech 2896 2, Brno 61669, Czech Republic
[5] Parthenope Univ, Dept Environm Sci, I-80133 Naples, Italy
[6] Beijing Normal Univ, Joint Ctr Global change & China Green Dev, Beijing 100875, Peoples R China