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Evaluating the Success of Phosphorus Management from Field to Watershed

Sharpley, A.N., Kleinman, P.J.A., Jordan, P., Bergstrom, L. and Allen, A.L. (2009) Evaluating the Success of Phosphorus Management from Field to Watershed. Journal of Environmental Quality, 38 . pp. 1981-1988. [Journal article]

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DOI: 10.2134/jeq2008.0056


Studies have demonstrated some P loss reduction followingimplementation of remedial strategies at fi eld scales. However,there has been little coordinated evaluation of best managementpractices (BMPs) on a watershed scale to show where, when, andwhich work most eff ectively. Th us, it is still diffi cult to answerwith a degree of certainty, critical questions such as, how longbefore we see a response and where would we expect to observethe greatest or least response? In cases where fi eld and watershedscales are monitored, it is not uncommon for trends in P lossto be disconnected. We review case studies demonstratingthat potential causes of the disconnect varies, from competingsources of P at watershed scales that are not refl ected in fi eldmonitoring to an abundance of sinks at watershed scales thatbuff er fi eld sources. To be successful, P-based mitigationstrategies need to occur iteratively, involve stakeholder drivenprograms, and address the inherent complexity of all P sourceswithin watersheds.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Geography and Environmental Sciences
Research Institutes and Groups:Environmental Sciences Research Institute
Environmental Sciences Research Institute > Freshwater Sciences
ID Code:12697
Deposited By: Professor Phil Jordan
Deposited On:26 Mar 2010 09:59
Last Modified:09 Dec 2015 10:46

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