THE PROBLEM ABOUT THE SELECTION OF SOIL-PRFSERVING WOODY AND HERBACEOUS PLANTS OF THE STEPPE AND FOREST-STEPPE ZONES IN THE MIDDLE REACHES OF THE YELLOW RIVER
Tsui You-wen . THE PROBLEM ABOUT THE SELECTION OF SOIL-PRFSERVING WOODY AND HERBACEOUS PLANTS OF THE STEPPE AND FOREST-STEPPE ZONES IN THE MIDDLE REACHES OF THE YELLOW RIVER[J]. Acta Geographica Sinica, 1957 , 23(1) : 69 -87 . DOI: 10.11821/xb195701004
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