TY - SCIENTIA GEOGRAPHICA SINICA A1 - Pengyan Zhang, Bo Pang, Jianjian He, Yi Guo, Lianqi Zhu T1 - Coupling Relationship and Trend of Cultivated Land Productivity and Food Security: A Case Study of Henan Province Y1 - 2017-11-20 10:09:28.93 JF - SCIENTIA GEOGRAPHICA SINICA JO - SCIENTIA GEOGRAPHICA SINICA SP - 1392 EP - 1402 VL - 37 IS - 9 UR - {http://geoscien.neigae.ac.cn/EN/10.13249/j.cnki.sgs.2017.09.012} N1 - 10.13249/j.cnki.sgs.2017.09.012 ER -