Soils2Sea. Reducing nutrient loadings from agricultural soils to the Baltic Sea via groundwater and streams

Project: Research

  • GEUS
  • University of Science and Technology - Krakow
  • Royal Insitute of Technology - Sweden
  • Swedish Meteorological and Hydrological Institute Sweden
  • ECOLOGIC Institute - Germany
  • Sorbisense A/S
  • Atlantic Branch of P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
See relations at Aarhus University


Policies and measures for reducing nutrient loads to the Baltic Sea and coastal waters have previously been studied extensively, and a variety of tools have been developed for assessing nutrient loadings from agricultural areas and urban sewage/wastewater discharge. The studies typically assess and include transport and retention of nutrients at large spatial scales (e.g. hydrological catchments above 1000 km2). The applied tools have been used to support decisions in terms of nationwide uniform agricultural regulations and national standards for sewage treatment, resulting in substantial reductions in pollution from both non-point and point sources. Assessments show, however, that the obtained abatements are insufficient, and the Baltic Sea Action Plan (HELCOM, 2007) requires substantial further reductions of N and P loads. The needed abatements vary significantly between the different parts of the Baltic Sea, and some parts require reductions in N but not in P and vice versa (HELCOM, 2007). Furthermore, specific estuaries and coastal waters may require even higher specific abatements for both N and P in order to protect coastal and transitional water ecosystems and comply with the good status objectives of the EU Water Framework
Directive (e.g. Hinsby et al., 2012). Climate change is expected to lead to increased nutrient load from agriculture
and to increased vulnerability of aquatic ecosystems (Refsgaard et al., 2013).
Effective start/end date01/01/201431/12/2017

ID: 129049705