TY - Journal of Resources and Ecology A1 - LU Chunxia, DENG Ou, LI Yiqiu T1 - A Study on Spatial Variation of Water Security Risks for the Zhangjiakou Region Y1 - 2021-03-30 00:00:00.0 JF - Journal of Resources and Ecology JO - Journal of Resources and Ecology SP - 91 EP - 98 VL - 12 IS - 1 UR - {https://www.jorae.cn/EN/10.5814/j.issn.1674-764x.2021.01.009} N1 - 10.5814/j.issn.1674-764x.2021.01.009 ER -