登入選單

返回Google圖書搜尋

Deer and Elk Use of a Ponderosa Pine Forest in Arizona Before and After Timber Harvest

David R. Patton

出版	Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, 1969
URL	http://books.google.com.hk/books?id=_Z7sijVN-A4C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

Animal use increased to almost six deer and elk per section per year on the cut watershed. During the same period, use on an adjacent uncut forest changed little. The new environment provided additional food while maintaining sufficient vegetation for cover.