Agricultural phosphorus and eutrophication: A symposium overview
Agricultural phosphorus and eutrophication: A symposium overview
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DOI：
10.2134/jeq1998.00472425002700020002x
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发表时间：
1998-03-01
影响因子：
2.4
通讯作者：
Lemunyon, JL
中科院分区：
文献类型：
--
作者：
Daniel, TC;Sharpley, AN;Lemunyon, JL
农田径流中的磷是非点源污染的重要组成部分，并能加速湖泊和溪流的富营养化。在美国许多地区，长期施用磷作为肥料和动物粪便已导致土壤磷水平升高。土壤高磷问题往往因许多地区靠近磷敏感水体而加剧，如五大湖，切萨皮克、特拉华州、奥基乔比湖和大沼泽地。本文简要介绍了1996年11月美国农学会年会上召开的“农业磷与富营养化”专题讨论会上讨论的有关农业磷管理的问题和选择。磷敏感水体的识别;磷运输机制，磷的化学形态和命运;磷源区的识别;磷运输模型;水质标准;土壤和粪肥磷，非农场磷投入和磷运输过程的管理。
Phosphorus in runoff from agricultural land is an important component of nonpoint-source pollution and can accelerate eutrophication of lakes and streams, Long-term land application of P as fertilizer and animal wastes has resulted in elevated levels of soil P in many locations in the USA, Problems with soils high in P are often aggravated by the proximity of many of these areas to P-sensitive water bodies, such as the Great Lakes, Chesapeake and Delaware Bags, Lake Okeechobee, and the Everglades, This paper provides a brief overview of the issues and options related to management of agricultural P that were discussed at a special symposium titled, "Agricultural Phosphorus and Eutrophication," held at the November 1996 American Society of Agronomy annual meetings, Topics discussed at the symposium and reviewed here included the role off in eutrophication; identification of P-sensitive water bodies; P transport mechanisms, chemical forms and fate of P; identification of P source areas; modeling of P transport; water quality criteria; and management of soil and manure P, off-farm P inputs, and P transport processes.