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Article

Implementing a Statewide Deficit Analysis for Inland Surface Waters According to the Water Framework Directive—An Exemplary Application on Phosphorus Pollution in Schleswig-Holstein (Northern Germany)

1
Institute of Bio- and Geosciences—Agrosphere (IBG-3), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
2
Department for Water Management, Marine and Coastal Protection; Ministry of Energy, Agriculture, the Environment, Nature and Digitalization Schleswig-Holstein, Mercatorstraße 3, 24106 Kiel, Germany
*
Author to whom correspondence should be addressed.
Water 2020, 12(5), 1365; https://doi.org/10.3390/w12051365
Received: 2 April 2020 / Revised: 3 May 2020 / Accepted: 9 May 2020 / Published: 12 May 2020
(This article belongs to the Special Issue Land Use and Water Quality)
Deficit analysis—which principally deals with the question “how big are the gaps between current water status and good ecological status?”—has become an essential element of the river basin management plans prescribed by the European Water Framework Directive (WFD). In a research project on behalf of the Ministry of Energy, Agriculture, the Environment, Nature and Digitalization Schleswig-Holstein (MELUND), a deficit analysis based on distributed results from the water balance and phosphorus emission model system GROWA-MEPhos at high spatial resolution was performed. The aim was, inter alia, to identify absolute and relative required reduction in total phosphorus at any river segment or lake within the state territory as well as to highlight significant emission sources. The results of the deficit analysis were successfully validated and show an exceedance of the phosphorus target concentrations in 60% of the analyzed subcatchments. Statewide, 269 tons of phosphorus needs to be reduced yearly, which corresponds to approximately 31% of the total emission. Detailed data as well as maps generated by the deficit analysis benefit the planning and implementation of regionally efficient measures, which are indispensable with regard to meeting the environmental quality objectives set by the WFD. View Full-Text
Keywords: deficit analysis; phosphorus; inland surface waters; Water Framework Directive; LAWA; Schleswig-Holstein deficit analysis; phosphorus; inland surface waters; Water Framework Directive; LAWA; Schleswig-Holstein
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MDPI and ACS Style

Ta, P.; Tetzlaff, B.; Trepel, M.; Wendland, F. Implementing a Statewide Deficit Analysis for Inland Surface Waters According to the Water Framework Directive—An Exemplary Application on Phosphorus Pollution in Schleswig-Holstein (Northern Germany). Water 2020, 12, 1365. https://doi.org/10.3390/w12051365

AMA Style

Ta P, Tetzlaff B, Trepel M, Wendland F. Implementing a Statewide Deficit Analysis for Inland Surface Waters According to the Water Framework Directive—An Exemplary Application on Phosphorus Pollution in Schleswig-Holstein (Northern Germany). Water. 2020; 12(5):1365. https://doi.org/10.3390/w12051365

Chicago/Turabian Style

Ta, Phuong, Björn Tetzlaff, Michael Trepel, and Frank Wendland. 2020. "Implementing a Statewide Deficit Analysis for Inland Surface Waters According to the Water Framework Directive—An Exemplary Application on Phosphorus Pollution in Schleswig-Holstein (Northern Germany)" Water 12, no. 5: 1365. https://doi.org/10.3390/w12051365

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