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Changes in Some Vegetation, Surface Soil and Surface Runoff Characteristic of a Watershed Brought about by Forest Cutting and Subsequent Mountain Farming

Robert E. Dils

出版	Michigan State College of Agriculture and Applied Science. Department of Soil Science, 1952
URL	http://books.google.com.hk/books?id=F_YCl7zk3wQC&hl=&source=gbs_api