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
Effects of Water Depth and Phosphorus Availability on Nitrogen Removal in Agricultural Wetlands
Halmstad University, School of Business, Engineering and Science. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).ORCID iD: 0000-0003-4297-8683
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).ORCID iD: 0000-0002-5181-0391
2019 (English)In: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 11, no 12, article id 2626Article in journal (Refereed) Published
Abstract [en]

Excess nitrogen (N) from agricultural runoff is a cause of pollution inaquatic ecosystems. Created free water surface (FWS) wetlands can be used as buffering systems to lower the impacts of nutrients from agricultural runoff. The purpose of this paper was to evaluate critical factors for N removal in FWSwetlands receiving high nitrate (NO3) loads from agriculture. The study was performed in 12 experimental FWS wetlands in southern Sweden, receiving drainage water from an agricultural field area. The effects of water depth (mean depth of 0.4 m and 0.6 m, respectively) and phosphorus (P) availability (with or without additional P load) were investigated from July to October. The experiment was performed in a two-way design, with three wetlands of each combination of depth and P availability. The effects of P availability on the removal of NO3 and total N were strongly significant, with higher absolute N removal rates per wetland area (g m−2 day−1) as well as temperature-adjusted first-order area-based removal rate coefficients (Kat) in wetlands with external P addition compared to wetlands with no addition. Further, higher N removal in deep compared to shallow wetlands was indicated by statistically significant differences in Kat. The results show that low P availability may limit N removal in wetlands receiving agricultural drainage water. Furthermore, the results support that not only wetland area but also wetland volume may be important for N removal. The results have implications for the planning, location, and design of created wetlands in agricultural areas. © 2019 by the authors

Place, publisher, year, edition, pages
Basel: MDPI, 2019. Vol. 11, no 12, article id 2626
Keywords [en]
free water surface wetlands, agricultural runoff, nitrogen removal, water depth, phosphorus
National Category
Water Engineering
Identifiers
URN: urn:nbn:se:hh:diva-41208DOI: 10.3390/w11122626OAI: oai:DiVA.org:hh-41208DiVA, id: diva2:1376748
Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2019-12-17Bibliographically approved

Open Access in DiVA

fulltext(846 kB)10 downloads
File information
File name FULLTEXT01.pdfFile size 846 kBChecksum SHA-512
a2086f7ba61d6a771c8693c14d3487be1eddc8ee71a6ceaf650b9b168e4e214fd8de46f15b3a9e34bd76f565d41e87a378380a64cc06d744b1bdb002d8bcdc5e
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Ehde, Per MagnusWeisner, Stefan
By organisation
School of Business, Engineering and ScienceThe Rydberg Laboratory for Applied Sciences (RLAS)
In the same journal
Water
Water Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 10 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 10 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