中文版 | English
Arid
报告编号PB2006105366
Recovery of Perennial Vegetation in Military Target Sites in the Eastern Mojave Desert, Arizona.
Steiger, J. W; Webb, R. H.
英文摘要The effect of the age of geomorphic surfaces on the recovery of desert vegetation in military target sites was studied in the Mohave and Cerbat Mountains of northwestern Arizona. The target sites were cleared of all vegetation during military exercises in 1942-1943 and have not been subsequently disturbed. The degree of recovery was measured by calculating percentage-similarity (PS) and correlation-coefficient indices on the basis of differences in cover, density, and volume of species growing in and out of each target site. PS values, ranging from 22.7 to 95.1 percent (100 percent = identical composition), indicate a wide range of recovery that is partially controlled by the edaphic properties of the geomorphic surfaces. Statistical analyses show a strong pattern that indicates a greater variability in the degree of recovery for sites on older surfaces than on younger surfaces and a weak pattern that indicates an inverse relation between the degree of recovery and geomorphic age.
英文关键词Vegetation Desert Geomorphology Geomorphic surfaces Military target sites Arizona Maps Tables (Data) Schematic diagrams Geology Military operations Mojave desert (Arizona) Cerbat Mountains (Arizona) Edaphic properties Statistic
出版年2000
语种英语
国家美国
URLhttp://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=5a001b8c31c97d1c38962f16
来源机构United States Geological Survey
资源类型科技报告
条目标识符http://119.78.100.177/qdio/handle/2XILL650/272845
推荐引用方式
GB/T 7714		 Steiger, J. W,Webb, R. H.. Recovery of Perennial Vegetation in Military Target Sites in the Eastern Mojave Desert, Arizona.,2000.
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