TY - Journal of Geographical Sciences A1 - Yaning CHEN, Baofu LI, Zhi LI, Weihong LI T1 - Water resource formation and conversion and water security in arid region of Northwest China Y1 - 2016-07-25 09:00:12.943 JF - Journal of Geographical Sciences JO - Journal of Geographical Sciences SP - 939 EP - 952 VL - 26 IS - 7 UR - {https://www.geogsci.com/EN/10.1007/s11442-016-1308-x} N1 - 10.1007/s11442-016-1308-x ER -