黄土丘陵区生态重建“赈济退耕”及地域分异特征
徐勇, 韩国义, 甘国辉
Spatial different characteristics on relieving and de-farming for eco-environmental rehabilitation in the loess hilly-gully region
XU Yong, HAN Guo-yi, GAN Guo-hui
地理研究
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2002, (5): 647
-655
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DOI: 10.11821/yj2002050014