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Spatially differentiated regulation: Can it save the Baltic Sea from excessive N-loads?
Geol Survey Denmark & Greenland, Copenhagen, Denmark..ORCID iD: 0000-0003-0420-349X
LandboSyd, Aabenraa, Denmark..
Geol Survey Denmark & Greenland, Copenhagen, Denmark..
Aarhus Univ, Dept Agroecol, Tjele, Denmark..ORCID iD: 0000-0002-6639-1273
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2019 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 48, no 11, p. 1278-1289Article in journal (Refereed) Published
Abstract [en]

The Baltic Sea Action Plan and the EU Water Framework Directive both require substantial additional reductions of nutrient loads (N and P) to the marine environment. Focusing on nitrogen, we present a widely applicable concept for spatially differentiated regulation, exploiting the large spatial variations in the natural removal of nitrate in groundwater and surface water. By targeting mitigation measures towards areas where nature's own capacity for removal is low, spatially differentiated regulation can be more cost-effective than the traditional uniform regulation. We present a methodology for upscaling local modelling results on targeted measures at field scale to Baltic Sea drainage basin scale. The paper assesses the potential gain and discusses key challenges related to implementation of spatially differentiated regulation, including the need for more scientific knowledge, handling of uncertainties, practical constraints related to agricultural practice and introduction of co-governance regimes.

Place, publisher, year, edition, pages
SPRINGER , 2019. Vol. 48, no 11, p. 1278-1289
Keywords [en]
Baltic Sea drainage basin, Co-governance, EU Water Framework Directive, N-loads from agriculture, Spatially differentiated regulation
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-264163DOI: 10.1007/s13280-019-01195-wISI: 000492594700005PubMedID: 31187428Scopus ID: 2-s2.0-85067395150OAI: oai:DiVA.org:kth-264163DiVA, id: diva2:1376916
Note

QC 20191210

Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2019-12-10Bibliographically approved

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Wörman, Anders

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