 PDF(172 KB)
						
							PDF(172 KB) 
						
						
					 
			DECLINE OF PRE HISTORICAL AGRICULTURE AND FORMATION OF FARMING GRAZING TRANSITIONAL ZONE IN NORTH CHINA:A VIEW FROM CLIMATIC CHANGES
FANG Xiu qi
JOURNAL OF NATURAL RESOURCES ›› 1999, Vol. 14 ›› Issue (3) : 212-218.
 PDF(172 KB)
						
							PDF(172 KB) 
						
						
					 PDF(172 KB)
						
							PDF(172 KB) 
						
						
					DECLINE OF PRE HISTORICAL AGRICULTURE AND FORMATION OF FARMING GRAZING TRANSITIONAL ZONE IN NORTH CHINA:A VIEW FROM CLIMATIC CHANGES
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