PDF(522 KB)
Survey and estimation of current agricultural land productivity based on large scale soil mapping unit: taking northwestern Shandong as a case
SHAO Xiao-mei, LIU Chun-ling, ZHANG Hong-ye
GEOGRAPHICAL RESEARCH ›› 2005, Vol. 24 ›› Issue (4) : 535-541.
PDF(522 KB)
PDF(522 KB)
Survey and estimation of current agricultural land productivity based on large scale soil mapping unit: taking northwestern Shandong as a case
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