Dynamic Changes of Net Primary Productivity of Cultivated Land in Wind-drift Sand Region—A Case of Yuyang Area of Northern Shaanxi Province
MO Hong-Wei, REN Zhi-Yuan, WANG Xin, HAN Yong-Shun
SCIENTIA GEOGRAPHICA SINICA ›› 2007, Vol. 27 ›› Issue (4) : 537-541.
Dynamic Changes of Net Primary Productivity of Cultivated Land in Wind-drift Sand Region—A Case of Yuyang Area of Northern Shaanxi Province
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