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Water 2016, 8(9), 371; doi:10.3390/w8090371

Identifying Efficient Nitrate Reduction Strategies in the Upper Danube

1
European Commission—Joint Research Center, via E. Fermi 2749, 21027 Ispra (VA), Italy
2
Universidad Politecnica de Madrid, Escuela Tecnica Superior de Ingenieros de Minas, 28003 Madrid, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Joan M. Brehm
Received: 31 May 2016 / Revised: 11 August 2016 / Accepted: 22 August 2016 / Published: 30 August 2016
(This article belongs to the Special Issue Watershed Protection and Management)
View Full-Text   |   Download PDF [7835 KB, uploaded 30 August 2016]   |  

Abstract

Nitrogen losses in the form of Nitrate (N-NO3) from point and diffuse sources of pollution are recognized to be the leading cause of water body impairment throughout Europe. Implementation of conservation programs is perceived as being crucial for restoring and protecting the good ecological status of freshwater bodies. The success of conservation programs depends on the efficient identification of management solutions with respect to the envisaged environmental and economic objectives. This is a complex task, especially considering that costs and effectiveness of conservation strategies depend on their locations. We applied a multi-objective, spatially explicit analysis tool, the R-SWAT-DM framework, to search for efficient, spatially-targeted solution of Nitrate abatement in the Upper Danube Basin. The Soil Water Assessment Tool (SWAT) model served as the nonpoint source pollution estimator for current conditions as well as for scenarios with modified agricultural practices and waste water treatment upgrading. A spatially explicit optimization analysis that considered point and diffuse sources of Nitrate was performed to search for strategies that could achieve largest pollution abatement at minimum cost. The set of optimal spatial conservation strategies identified in the Basin indicated that it could be possible to reduce Nitrate loads by more than 50% while simultaneously provide a higher income. View Full-Text
Keywords: Best Management Practices (BMP); SWAT; multi-objective optimization; point and diffuse sources pollution; nutrients reduction Best Management Practices (BMP); SWAT; multi-objective optimization; point and diffuse sources pollution; nutrients reduction
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Udias, A.; Malagò, A.; Pastori, M.; Vigiak, O.; Reynaud, A.; Elorza, F.J.; Bouraoui, F. Identifying Efficient Nitrate Reduction Strategies in the Upper Danube. Water 2016, 8, 371.

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