Arid
DOI10.1672/0277-5212(2002)022[0677:WDOASO]2.0.CO;2
Wetland determination of a southeast Oregon vernal pool and management implications
Clausnitzer, D; Huddleston, JH
通讯作者Clausnitzer, D
来源期刊WETLANDS
ISSN0277-5212
出版年2002
卷号22期号:4页码:677-685
英文摘要

Numerous landscape depressions on the High Lava Plain of southeast Oregon, USA are ponded in most years, but their wetland status has not been examined closely. We applied the standard wetland criteria (hydrology, soils, and vegetation) to one such pool to evaluate whether the pool meets federal criteria as a jurisdictional wetland. Welland hydrology was determined to be present based on data from piezometer and ponding observations. Soils were determined to be hydri based on hydrology, soil temperature, and redox potentials. Vegetation met wetland criteria according to the 50/20 rule. Vegetation was similar to that of California Northern Basalt Flow vernal pools. Oregon pools are locally called "upland playas," but they fit the definition of vernal pools. Many southeast Oregon vernal pools are dug out as waterholes for livestock, increasing ponding depth and duration. Increased water availability can alter biological communities within pools and on surrounding semi-arid uplands. Effects due to grazing and excrement inputs have not yet been investigated. Vernal pools constitute distinct habitat sites within semi-arid landscapes and, therefore, probably play an important, and so far poorly understood, ecological role on the southeast Oregon steppe.


英文关键词wetland delineation wetlands hydrophytic vegetation hydric soils wetland hydrology disturbed wetlands
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000180253100005
WOS关键词VEGETATION
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构United States Geological Survey
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/143911
作者单位(1)US Geol Survey, Corvallis, OR 97331 USA;(2)Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA
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GB/T 7714
Clausnitzer, D,Huddleston, JH. Wetland determination of a southeast Oregon vernal pool and management implications[J]. United States Geological Survey,2002,22(4):677-685.
APA Clausnitzer, D,&Huddleston, JH.(2002).Wetland determination of a southeast Oregon vernal pool and management implications.WETLANDS,22(4),677-685.
MLA Clausnitzer, D,et al."Wetland determination of a southeast Oregon vernal pool and management implications".WETLANDS 22.4(2002):677-685.
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