Connecting phosphorus loss from agricultural landscapes to surface water quality

The loss of phosphorous (P) from the landscape is commonly viewed as deleterious for surface water quality. However, the quantities lost and the impact this can have on surface waters depends on numerous mechanisms that occur whilst en route. The aim of this review is to give an outline of these mec...

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Bibliographic Details
Published in:Chemistry and ecology 2004-02, Vol.20 (1), p.1-40
Main Authors: McDowell, R. W., Biggs, B. J. F., Sharpley, A. N., Nguyen, L.
Format: Article
Language:English
Subjects:
Agriculture
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Channel
Connectivity
Eutrophication
Fresh water ecosystems
Fundamental and applied biological sciences. Psychology
Hydrology
Phosphorus
Stream
Synecology
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Summary:The loss of phosphorous (P) from the landscape is commonly viewed as deleterious for surface water quality. However, the quantities lost and the impact this can have on surface waters depends on numerous mechanisms that occur whilst en route. The aim of this review is to give an outline of these mechanisms and thus how sources of P in the agricultural landscape are connected to the impairment of surface water quality. Processes are dealt with by examining the potential for P loss from the landscape and its availability to aquatic plants during flow overland and subsurface flow and once in streamflow or a lake or reservoir. By examining the connectivity between P loss and the impact on surface water quality, potential mitigation and management of P losses are discussed for various aquatic systems.
ISSN:0275-7540
1029-0370
DOI:10.1080/02757540310001626092