Studies of the regional classification about returning farmland to forests or grassland on the Loess Plateau
PENG Wen-ying, ZHANG Ke-li, LI Shuang-cai
JOURNAL OF NATURAL RESOURCES ›› 2002, Vol. 17 ›› Issue (4) : 438-443.
Studies of the regional classification about returning farmland to forests or grassland on the Loess Plateau
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