Arid
DOI10.1016/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
ISSN0301-4797
EISSN1095-8630
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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