PDF(545 KB)
GIS Study of Phosphorus Nutrient Input/Output in China at the County Level
FANG Yu-dong, FENG Zhi-ming, HU Ye-cui
Resources Science ›› 2008, Vol. 30 ›› Issue (5) : 725-731.
PDF(545 KB)
PDF(545 KB)
GIS Study of Phosphorus Nutrient Input/Output in China at the County Level
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