TY - Acta Geographica Sinica A1 - ZHAO Shuyi, GONG Zhaoning, LIU Xuying T1 - Correlation analysis between vegetation coverage and climate drought conditions in North China during 2001-2013 Y1 - 2015-05-20 17:24:34.537 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 717 EP - 729 VL - 70 IS - 5 UR - {https://www.geog.com.cn/EN/10.11821/dlxb201505004} N1 - 10.11821/dlxb201505004 ER -