Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jenvman.2016.07.011 |
Effectiveness of vegetation buffers surrounding playa wetlands at contaminant and sediment amelioration | |
Haukos, David A.1; Johnson, Lacrecia A.2,4; Smith, Loren M.3; McMurry, Scott T.3 | |
通讯作者 | Haukos, David A. |
来源期刊 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
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ISSN | 0301-4797 |
EISSN | 1095-8630 |
出版年 | 2016 |
卷号 | 181页码:552-562 |
英文摘要 | Playa wetlands, the dominant hydrological feature of the semi-arid U.S. High Plains providing critical ecosystem services, are being lost and degraded due to anthropogenic alterations of the short-grass prairie landscape. The primary process contributing to the loss of playas is filling of the wetland through accumulation of soil eroded and transported by precipitation from surrounding cultivated watersheds. We evaluated effectiveness of vegetative buffers surrounding playas in removing metals, nutrients, and dissolved/suspended sediments from precipitation runoff. Storm water runoff was collected at 10-m intervals in three buffer types (native grass, fallow cropland, and Conservation Reserve Program). Buffer type differed in plant composition, but not in maximum percent removal of contaminants. Within the initial 60 m from a cultivated field, vegetation buffers of all types removed >50% of all measured contaminants, including 83% of total suspended solids (TSS) and 58% of total dissolved solids (TDS). Buffers removed an average of 70% of P and 78% of N to reduce nutrients entering the playa. Mean maximum percent removal for metals ranged from 56% of Na to 87% of Cr. Maximum removal was typically at 50 m of buffer width. Measures of TSS were correlated with all measures of metals and nutrients except for N, which was correlated with TDS. Any buffer type with >80% vegetation cover and 30-60 m in width would maximize contaminant removal from precipitation runoff while ensuring that playas would continue to function hydrologically to provide ecosystem services. Watershed management to minimize erosion and creations of vegetation buffers could be economical and effective conservation tools for playa wetlands. Published by Elsevier Ltd. |
英文关键词 | Buffer Metals Nutrients Playas Southern high plains Vegetation |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000383291700059 |
WOS关键词 | SOUTHERN HIGH-PLAINS ; LAND-USE ; GREAT-PLAINS ; CONSERVATION PROGRAMS ; PLANT-COMMUNITIES ; LAKES ; AMPHIBIANS ; ALUMINUM ; METALS ; TEXAS |
WOS类目 | 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/2XILL650/194361 |
作者单位 | 1.Texas Tech Univ, Dept Nat Resources Management, US Fish & Wildlife Serv, Lubbock, TX 79409 USA; 2.Texas Tech Univ, Dept Nat Resources Management, Lubbock, TX 79409 USA; 3.Oklahoma State Univ, Dept Integrat Biol, Stillwater, OK 74078 USA; 4.US Fish & Wildlife Serv, 12661 East Broadway, Tucson, AZ 85748 USA |
推荐引用方式 GB/T 7714 | Haukos, David A.,Johnson, Lacrecia A.,Smith, Loren M.,et al. Effectiveness of vegetation buffers surrounding playa wetlands at contaminant and sediment amelioration[J]. United States Geological Survey,2016,181:552-562. |
APA | Haukos, David A.,Johnson, Lacrecia A.,Smith, Loren M.,&McMurry, Scott T..(2016).Effectiveness of vegetation buffers surrounding playa wetlands at contaminant and sediment amelioration.JOURNAL OF ENVIRONMENTAL MANAGEMENT,181,552-562. |
MLA | Haukos, David A.,et al."Effectiveness of vegetation buffers surrounding playa wetlands at contaminant and sediment amelioration".JOURNAL OF ENVIRONMENTAL MANAGEMENT 181(2016):552-562. |
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