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Effects of vegetati...
Effects of vegetation and hydraulic load on seasonal nitrate removal in treatment wetlands
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- Kallner Bastviken, Sofia (författare)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan,IFM Biology, Linköping University, Campus Valla, Sweden
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- Weisner, Stefan E.B. (författare)
- Högskolan i Halmstad,Våtmarkscentrum,Halmstad University
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- Thiere, Geraldine (författare)
- Högskolan i Halmstad,Våtmarkscentrum,Halmstad University
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- Svensson, Jonas M. (författare)
- Högskolan i Halmstad,Våtmarkscentrum,Halmstad University
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- Ehde, Per Magnus (författare)
- Högskolan i Halmstad,Våtmarkscentrum,Halmstad University
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- Sundblad-Tonderski, Karin (författare)
- Linköpings universitet,Ekologi,Tekniska högskolan,IFM Biology, Linköping University, Campus Valla, Sweden
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(creator_code:org_t)
- Amsterdam : Elsevier, 2009
- 2009
- Engelska.
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Ingår i: Ecological Engineering. - Amsterdam : Elsevier. - 0925-8574 .- 1872-6992. ; 35:5, s. 946-952
- Relaterad länk:
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http://urn.kb.se/res...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Optimising nitrate removal and identifying critical factors for nitrate removal in wetlands is an important environmental task in the effort to achieve better surface water quality. In this study, eighteen free water surface wetlands with similar shape and size (22 m2 each) received groundwater with a high nitrate-N concentration (about 11 mg l−1). The effects of two hydraulic loads, 0.13 m d−1 and 0.39 m d−1, and three vegetation types – emergent, submersed and freely developing vegetation – on the nitrate-N removal were investigated through mass inflow and outflow measurements.No significant difference in nitrate removal between the different hydraulic loads could be detected. Significantly higher area-specific nitrate removal and first-order area-based rate coefficients were found in the basins with emergent vegetation, with no difference between the basins with submersed and freely developing vegetation. The nitrate-N removal increased as the wetlands matured and the vegetation grew denser, emphasizing the role of dense emergent vegetation for nitrate removal at high nitrate concentrations.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Hydraulic load
- Removal rate coefficient
- Season
- Vegetation
- Wetland nitrate removal
- NATURAL SCIENCES
- NATURVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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