Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1672/0277-5212(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
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ISSN | 0277-5212 |
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 |
推荐引用方式 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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