Dynamic Changes in Cultivated Land Resource Security and Driving Forces in Heibei Province during the Past 20 Years
LI Chao1, ZHANG Xiang\|yi2, ZHANG Hai\|tao3, ZHANG Li2,WANG Shu\|tao2*
. 2014, (1): 131 -138 .  DOI: 10.13304/j.nykjdb.2013.292

京ICP备12031475号-3　京公网安备11010802021197号
Copyright © Journal of Agricultural Science and Technology, All Rights Reserved.
Tel: 010-82109848　E-mail: nykjdb@163.com; nkdb@caas.cn
Powered by Beijing Magtech Co., Ltd.