[1] Chinese Acad Sci, Res Grp Circular Econ & Ind Ecol, Inst Appl Ecol, Shenyang 110016, Peoples R China
[2] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China
[3] Univ Vermont, Gund Inst Ecol Econ, Burlington, VT 05405 USA
[4] NE Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China