Opportunities to reduce nutrient inputs to the Baltic Sea by improving manure use efficiency in agriculture

McCrackin, Michelle L. (author): Stockholms universitet,Stockholms universitets Östersjöcentrum

Gustafsson, Bo G. (author): Stockholms universitet,Stockholms universitets Östersjöcentrum

Hong, Bongghi (author)

Howarth, Robert W. (author)

Humborg, Christoph (author): Stockholms universitet,Stockholms universitets Östersjöcentrum,University of Helsinki, Finland

Savchuck, Oleg P., 1948- (author): Stockholms universitet,Stockholms universitets Östersjöcentrum

Svanbäck, Annika (author): Stockholms universitet,Stockholms universitets Östersjöcentrum

Swaney, Dennis P. (author)

(creator_code:org_t)

2018-03-20
2018
English.
In: Regional Environmental Change. - : Springer Science and Business Media LLC. - 1436-3798 .- 1436-378X. ; 18:6, s. 1843-1854

Related links:: https://doi.org/10.1...; show more...; https://link.springe...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

While progress has been made in reducing external nutrient inputs to the Baltic Sea, further actions are needed to meet the goals of the Baltic Sea Action Plan (BSAP), especially for the Baltic Proper, Gulf of Finland, and Gulf of Riga sub-basins. We used the net anthropogenic nitrogen and phosphorus inputs (NANI and NAPI, respectively) nutrient accounting approach to construct three scenarios of reduced NANI-NAPI. Reductions assumed that manure nutrients were redistributed from areas with intense animal production to areas that focus on crop production and would otherwise import synthetic and mineral fertilizers. We also used the Simple as Necessary Baltic Long Term Large Scale (SANBALTS) model to compare eutrophication conditions for the scenarios to current and BSAP-target conditions. The scenarios suggest that reducing NANI-NAPI by redistributing manure nutrients, together with improving agronomic practices, could meet 54–82% of the N reductions targets (28–43 kt N reduction) and 38–64% P reduction targets (4–6.6 kt P reduction), depending on scenario. SANBALTS output showed that even partial fulfillment of nutrient reduction targets could have ameliorating effects on eutrophication conditions. Meeting BSAP targets will require addressing additional sources, such as sewage. A common approach to apportioning sources to external nutrients loads could enable further assessment of the feasibility of eutrophication management targets.

By the author/editor: McCrackin, Miche ...; Gustafsson, Bo G ...; Hong, Bongghi; Howarth, Robert ...; Humborg, Christo ...; Savchuck, Oleg P ...; show more...; Svanbäck, Annika; Swaney, Dennis P ...; show less...

About the subject

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.