Research on Agricultural Functions Regionalization and Sustainable Development Strategy of Ecologically Vulnerable Environment in the West of China—A Case of Yanchi County in Ningxia Hui Autonomous Region
LU Xiao-fang, WANG Yang-lin, ZHANG Yi-li, SHEN Yuan-cun
JOURNAL OF NATURAL RESOURCES . 2007, (2): 177 -184 .  DOI: 10.11849/zrzyxb.2007.02.003