globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2693
论文题名:
Long-term accumulation and transport of anthropogenic phosphorus in three river basins
作者: Powers S.M.; Bruulsema T.W.; Burt T.P.; Chan N.I.; Elser J.J.; Haygarth P.M.; Howden N.J.K.; Jarvie H.P.; Lyu Y.; Peterson H.M.; Sharpley A.N.; Shen J.; Worrall F.; Zhang F.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2016
卷: 9, 期:5
起始页码: 353
结束页码: 356
语种: 英语
Scopus关键词: agricultural land ; anthropogenic effect ; eutrophication ; flux measurement ; food production ; geoaccumulation ; long-term change ; mobilization ; phosphorus ; river basin ; sewage treatment ; transport process ; urban area ; China ; England ; Maumee Basin ; Thames Basin ; United Kingdom ; United States ; Yangtze Basin
英文摘要: Global food production depends on phosphorus. Phosphorus is broadly applied as fertilizer, but excess phosphorus contributes to eutrophication of surface water bodies and coastal ecosystems. Here we present an analysis of phosphorus fluxes in three large river basins, including published data on fertilizer, harvested crops, sewage, food waste and river fluxes. Our analyses reveal that the magnitude of phosphorus accumulation has varied greatly over the past 30-70 years in mixed agricultural-urban landscapes of the Thames Basin, UK, the Yangtze Basin, China, and the rural Maumee Basin, USA. Fluxes of phosphorus in fertilizer, harvested crops, food waste and sewage dominate over the river fluxes. Since the late 1990s, net exports from the Thames and Maumee Basins have exceeded inputs, suggesting net mobilization of the phosphorus pool accumulated in earlier decades. In contrast, the Yangtze Basin has consistently accumulated phosphorus since 1980. Infrastructure modifications such as sewage treatment and dams may explain more recent declines in total phosphorus fluxes from the Thames and Yangtze Rivers. We conclude that human-dominated river basins may undergo a prolonged but finite accumulation phase when phosphorus inputs exceed agricultural demand, and this accumulated phosphorus may continue to mobilize long after inputs decline. © 2016 Macmillan Publishers Limited. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106023
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: Center for Environmental Research, Education, and Outreach (CEREO), Washington State University, Pullman, WA, United States; International Plant Nutrition Institute, Guelph, ON, Canada; Department of Geography, Durham University, Durham, United Kingdom; School of Life Sciences, Arizona State University, Tempe, AZ, United States; Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom; Department of Civil Engineering, University of Bristol, Bristol, United Kingdom; Centre for Ecology and Hydrology, Wallingford, Oxfordshire, United Kingdom; Department of Plant Nutrition, China Agricultural University, Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing, China; Minnesota Department of Agriculture, St Paul, MN, United States; Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, United States; Department of Earth Sciences, University of Durham, Durham, United Kingdom

Recommended Citation:
Powers S.M.,Bruulsema T.W.,Burt T.P.,et al. Long-term accumulation and transport of anthropogenic phosphorus in three river basins[J]. Nature Geoscience,2016-01-01,9(5)
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