PDF(998 KB)
Evaluation of Regional Ecological Secur ity Based on Dynamic Factor s ———A Case Study of Wanquan County, Hebei Province
ZHU Yunhai,ZHANG Baiping,CAO Yinxuan,ZHANG Yunsheng
PROGRESS IN GEOGRAPHY ›› 2006, Vol. 25 ›› Issue (4) : 34-40.
PDF(998 KB)
PDF(998 KB)
Evaluation of Regional Ecological Secur ity Based on Dynamic Factor s ———A Case Study of Wanquan County, Hebei Province
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