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DOI10.2134/jeq2019.03.0136
The Latitudes, Attitudes, and Platitudes of Watershed Phosphorus Management in North America
Smith, D. R.1; Macrae, M. L.2; Kleinman, P. J. A.3; Jarvie, H. P.4; King, K. W.5; Bryant, R. B.3
发表日期2019
ISSN0047-2425
EISSN1537-2537
卷号48期号:5页码:1176-1190
英文摘要

Phosphorus (P) plays a crucial role in agriculture as a primary fertilizer nutrient-and as a cause of the eutrophication of surface waters. Despite decades of efforts to keep P on agricultural fields and reduce losses to waterways, frequent algal blooms persist, triggering not only ecological disruption but also economic, social, and political consequences. We investigate historical and persistent factors affecting agricultural P mitigation in a transect of major watersheds across North America: Lake Winnipeg, Lake Erie, the Chesapeake Bay, and Lake Okeechobee/Everglades. These water bodies span 26 degrees of latitude, from the cold climate of central Canada to the subtropics of the southeastern United States. These water bodies and their associated watersheds have tracked trajectories of P mitigation that manifest remarkable similarities, and all have faced challenges in the application of science to agricultural management that continue to this day. An evolution of knowledge and experience in watershed P mitigation calls into question uniform solutions as well as efforts to transfer strategies from other arenas. As a result, there is a need to admit to shortcomings of past approaches, plotting a future for watershed P mitigation that accepts the sometimes two-sided nature of Hennig Brandt's "Devil's Element."


WOS研究方向Environmental Sciences & Ecology
来源期刊JOURNAL OF ENVIRONMENTAL QUALITY
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/102354
作者单位1.USDA ARS, Grassland Soil & Water Res Lab, 808 East Blackland Rd, Temple, TX 76502 USA;
2.Univ Waterloo, Dept Geog & Environm Management, 200 Univ Ave W, Waterloo, ON N2L 3G1, Canada;
3.USDA ARS, Pasture Syst & Watershed Management Res Unit, Bldg 3702,Curtin Rd, University Pk, PA 16802 USA;
4.Ctr Ecol & Hydrol, Wallingford OX10 8BB, Oxon, England;
5.USDA ARS, Soil Drainage Res Unit, Columbus, OH 43210 USA
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Smith, D. R.,Macrae, M. L.,Kleinman, P. J. A.,et al. The Latitudes, Attitudes, and Platitudes of Watershed Phosphorus Management in North America[J],2019,48(5):1176-1190.
APA Smith, D. R.,Macrae, M. L.,Kleinman, P. J. A.,Jarvie, H. P.,King, K. W.,&Bryant, R. B..(2019).The Latitudes, Attitudes, and Platitudes of Watershed Phosphorus Management in North America.JOURNAL OF ENVIRONMENTAL QUALITY,48(5),1176-1190.
MLA Smith, D. R.,et al."The Latitudes, Attitudes, and Platitudes of Watershed Phosphorus Management in North America".JOURNAL OF ENVIRONMENTAL QUALITY 48.5(2019):1176-1190.
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