title: Reduction of Baltic Sea nutrient inputs and allocation of abatement costs within the Baltic Sea catchment.
abstract: The Baltic Sea Action Plan (BSAP) requires tools to simulate effects and costs of various nutrient abatement strategies. Hierarchically connected databases and models of the entire catchment have been created to allow decision makers to view scenarios via the decision support system NEST. Increased intensity in agriculture in transient countries would result in increased nutrient loads to the Baltic Sea, particularly from Poland, the Baltic States, and Russia. Nutrient retentions are high, which means that the nutrient reduction goals of 135 000 tons N and 15 000 tons P, as formulated in the BSAP from 2007, correspond to a reduction in nutrient loadings to watersheds by 675 000 tons N and 158 000 tons P. A cost-minimization model was used to allocate nutrient reductions to measures and countries where the costs for reducing loads are low. The minimum annual cost to meet BSAP basin targets is estimated to 4.7 billion Euro.
authors.affiliation: Department of Ecology, Environment and Plant Sciences, Baltic Nest Institute (BNI), Stockholm University, 106 91, Stockholm, Sweden, fredrik.wulff@su.se.
authors.forename: Fredrik
authors.initials: F
authors.lastname: Wulff
authors.forename: Christoph
authors.initials: C
authors.lastname: Humborg
authors.forename: Hans Estrup
authors.initials: HE
authors.lastname: Andersen
authors.forename: Gitte
authors.initials: G
authors.lastname: Blicher-Mathiesen
authors.forename: Mikołaj
authors.initials: M
authors.lastname: Czajkowski
authors.forename: Katarina
authors.initials: K
authors.lastname: Elofsson
authors.forename: Anders
authors.initials: A
authors.lastname: Fonnesbech-Wulff
authors.forename: Berit
authors.initials: B
authors.lastname: Hasler
authors.forename: Bongghi
authors.initials: B
authors.lastname: Hong
authors.forename: Viesturs
authors.initials: V
authors.lastname: Jansons
authors.forename: Carl-Magnus
authors.initials: CM
authors.lastname: Mörth
authors.forename: James C R
authors.initials: JC
authors.lastname: Smart
authors.forename: Erik
authors.initials: E
authors.lastname: Smedberg
authors.forename: Per
authors.initials: P
authors.lastname: Stålnacke
authors.forename: Dennis P
authors.initials: DP
authors.lastname: Swaney
authors.forename: Hans
authors.initials: H
authors.lastname: Thodsen
authors.forename: Adam
authors.initials: A
authors.lastname: Was
authors.forename: Tomasz
authors.initials: T
authors.lastname: Zylicz
mesh_terms: D001454:Baltic States; D003361:Cost Allocation; D005068:Eutrophication; D018803:Models, Economic; D009792:Oceans and Seas