PDF(284 KB)
National Ecological Pressure and Ecological Efficiency
DING Yi, GU Xiao-wei, LI Guang-jun, WANG Jun, WANG Qing, ZHANG Bo
Resources Science ›› 2007, Vol. 29 ›› Issue (1) : 142-146.
PDF(284 KB)
PDF(284 KB)
National Ecological Pressure and Ecological Efficiency
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