Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A Century of Legacy Phosphorus Dynamics in a Large Drainage Basin
Stockholm University, Faculty of Science, Stockholm University Baltic Sea Centre.ORCID iD: 0000-0002-8570-2831
Stockholm University, Faculty of Science, Stockholm University Baltic Sea Centre.ORCID iD: 0000-0001-5718-4726
Stockholm University, Faculty of Science, Stockholm University Baltic Sea Centre. University of Helsinki, Finland.ORCID iD: 0000-0003-1048-8452
Show others and affiliations
Number of Authors: 72018 (English)In: Global Biogeochemical Cycles, ISSN 0886-6236, E-ISSN 1944-9224, Vol. 32, no 7, p. 1107-1122Article in journal (Refereed) Published
Abstract [en]

There is growing evidence that the release of phosphorus (P) from legacy stores can frustrate efforts to reduce P loading to surface water from sources such as agriculture and human sewage. Less is known, however, about the magnitude and residence times of these legacy pools. Here we constructed a budget of net anthropogenic P inputs to the Baltic Sea drainage basin and developed a three-parameter, two-box model to describe the movement of anthropogenic P though temporary (mobile) and long-term (stable) storage pools. Phosphorus entered the sea as direct coastal effluent discharge and via rapid transport and slow, legacy pathways. The model reproduced past waterborne P loads and suggested an similar to 30-year residence time in the mobile pool. Between 1900 and 2013, 17 and 27 Mt P has accumulated in the mobile and stable pools, respectively. Phosphorus inputs to the sea have halved since the 1980s due to improvements in coastal sewage treatment and reductions associated with the rapid transport pathway. After decades of accumulation, the system appears to have shifted to a depletion phase; absent further reductions in net anthropogenic P input, future waterborne loads could decrease. Presently, losses from the mobile pool contribute nearly half of P loads, suggesting that it will be difficult to achieve substantial near-term reductions. However, there is still potential to make progress toward eutrophication management goals by addressing rapid transport pathways, such as overland flow, as well as mobile stores, such as cropland with large soil-P reserves.

Place, publisher, year, edition, pages
2018. Vol. 32, no 7, p. 1107-1122
Keywords [en]
legacy phosphorus, eutrophication, model, Baltic Sea
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-160272DOI: 10.1029/2018GB005914ISI: 000441242900006OAI: oai:DiVA.org:su-160272DiVA, id: diva2:1249263
Available from: 2018-09-18 Created: 2018-09-18 Last updated: 2020-03-04Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Search in DiVA

By author/editor
McCrackin, Michelle L.Muller-Karulis, BärbelGustafsson, Bo G.Humborg, ChristophSvanbäck, AnnikaSwaney, Dennis P.
By organisation
Stockholm University Baltic Sea Centre
In the same journal
Global Biogeochemical Cycles
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 1782 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf