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Dissecting the ecosystem service of large-scale pollutant retention: The role of wetlands and other landscape features.

Quin A, Jaramillo F, Destouni G - Ambio (2015)

Bottom Line: Various features of a landscape contribute to the regulating ecosystem service of reducing waterborne pollutant loading to downstream environments.At local scales, wetlands have been shown to be effective in retaining pollutants.We develop a general analytical model which shows that the retention contribution of wetlands and other landscape features is only significant if a large fraction of the total waterborne pollutant transport passes through them.

View Article: PubMed Central - PubMed

Affiliation: Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91, Stockholm, Sweden, andrew.quin@natgeo.su.se.

ABSTRACT
Various features of a landscape contribute to the regulating ecosystem service of reducing waterborne pollutant loading to downstream environments. At local scales, wetlands have been shown to be effective in retaining pollutants. Here, we investigate the landscape-scale contribution to pollutant retention provided by multiple wetlands. We develop a general analytical model which shows that the retention contribution of wetlands and other landscape features is only significant if a large fraction of the total waterborne pollutant transport passes through them. Next, by means of a statistical analysis of official data, we quantify the nutrient retention contribution of wetlands for multiple sub-catchments in two Swedish Water Management Districts. We compare this with the retention contribution of two other landscape features: the waterborne transport distance and major lakes. The landscape-scale retention contribution of wetlands is undetectable; rather, the other two landscape features account for much of the total nutrient retention.

No MeSH data available.


PLC5 catchments (outlined in black) in a the North Baltic Water Management District (WMD) and b the South Baltic WMD. PLC5 catchments with surface water flow and nutrient transport pathways that go through a major lake en route to their coastal outlet are marked in purple, while all other catchments are marked in yellow. The major lakes, Mälaren in the North Baltic WMD and Vättern in the South Baltic WMD, are shown
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Fig2: PLC5 catchments (outlined in black) in a the North Baltic Water Management District (WMD) and b the South Baltic WMD. PLC5 catchments with surface water flow and nutrient transport pathways that go through a major lake en route to their coastal outlet are marked in purple, while all other catchments are marked in yellow. The major lakes, Mälaren in the North Baltic WMD and Vättern in the South Baltic WMD, are shown

Mentions: In order to quantify and compare the contributions of different landscape features (wetlands rSC−w, major lakes rSC−l and others rSC−o) to total nutrient retention (rSC), we have carried out a statistical analysis. Official data on nutrient inputs (Min) and coastal outputs (Mout), and on wetlands, major lakes and other landscape and catchment characteristics, were compiled separately for numerous sub-catchments within two Swedish WMDs: the North and the South Baltic (Fig. 2).Fig. 2


Dissecting the ecosystem service of large-scale pollutant retention: The role of wetlands and other landscape features.

Quin A, Jaramillo F, Destouni G - Ambio (2015)

PLC5 catchments (outlined in black) in a the North Baltic Water Management District (WMD) and b the South Baltic WMD. PLC5 catchments with surface water flow and nutrient transport pathways that go through a major lake en route to their coastal outlet are marked in purple, while all other catchments are marked in yellow. The major lakes, Mälaren in the North Baltic WMD and Vättern in the South Baltic WMD, are shown
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4288994&req=5

Fig2: PLC5 catchments (outlined in black) in a the North Baltic Water Management District (WMD) and b the South Baltic WMD. PLC5 catchments with surface water flow and nutrient transport pathways that go through a major lake en route to their coastal outlet are marked in purple, while all other catchments are marked in yellow. The major lakes, Mälaren in the North Baltic WMD and Vättern in the South Baltic WMD, are shown
Mentions: In order to quantify and compare the contributions of different landscape features (wetlands rSC−w, major lakes rSC−l and others rSC−o) to total nutrient retention (rSC), we have carried out a statistical analysis. Official data on nutrient inputs (Min) and coastal outputs (Mout), and on wetlands, major lakes and other landscape and catchment characteristics, were compiled separately for numerous sub-catchments within two Swedish WMDs: the North and the South Baltic (Fig. 2).Fig. 2

Bottom Line: Various features of a landscape contribute to the regulating ecosystem service of reducing waterborne pollutant loading to downstream environments.At local scales, wetlands have been shown to be effective in retaining pollutants.We develop a general analytical model which shows that the retention contribution of wetlands and other landscape features is only significant if a large fraction of the total waterborne pollutant transport passes through them.

View Article: PubMed Central - PubMed

Affiliation: Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91, Stockholm, Sweden, andrew.quin@natgeo.su.se.

ABSTRACT
Various features of a landscape contribute to the regulating ecosystem service of reducing waterborne pollutant loading to downstream environments. At local scales, wetlands have been shown to be effective in retaining pollutants. Here, we investigate the landscape-scale contribution to pollutant retention provided by multiple wetlands. We develop a general analytical model which shows that the retention contribution of wetlands and other landscape features is only significant if a large fraction of the total waterborne pollutant transport passes through them. Next, by means of a statistical analysis of official data, we quantify the nutrient retention contribution of wetlands for multiple sub-catchments in two Swedish Water Management Districts. We compare this with the retention contribution of two other landscape features: the waterborne transport distance and major lakes. The landscape-scale retention contribution of wetlands is undetectable; rather, the other two landscape features account for much of the total nutrient retention.

No MeSH data available.