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Effects of Prescribed Fire on Soil Nitrogen Levels in a Cutover Douglas-fir/western Larch Forest

Martin F. Jurgensen

出版	U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1981
URL	http://books.google.com.hk/books?id=dGGzRxuMHT0C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN