Temperate grasslands in catchment systems: the role of scale, connectivity and thresholds in the provision and regulation of water quality and quantity.

2011 ◽  
pp. 229-238 ◽  
Author(s):  
C. J. A. Macleod ◽  
R. C. Ferrier
Keyword(s):  
Water Quality ◽  
Temperate Grasslands ◽  
Water Quality And Quantity

The role of land surface versus drainage network characteristics in controlling water quality and quantity in a small urban watershed

2017 ◽  
Vol 31 (24) ◽  
pp. 4384-4397 ◽  
Author(s):  
Katherine L. Meierdiercks ◽  
Mary Beth Kolozsvary ◽  
Kevin P. Rhoads ◽  
Michele Golden ◽  
Nicholas F. McCloskey
Keyword(s):  
Water Quality ◽  
Land Surface ◽  
Drainage Network ◽  
Urban Watershed ◽  
Network Characteristics ◽  
Surface Versus ◽  
Water Quality And Quantity

Unintended consequences of biofuels production?The effects of large-scale crop conversion on water quality and quantity

2010 ◽  
Author(s):  
Heather L. Welch ◽  
Christopher T. Green ◽  
Richard A. Rebich ◽  
Jeannie R.B. Barlow ◽  
Matthew B. Hicks
Keyword(s):  
Water Quality ◽  
Large Scale ◽  
Unintended Consequences ◽  
Water Quality And Quantity

The Water Quality and Quantity Performance of a Permeable Pavement System in Louisville, KY

2015 ◽  
Vol 2015 (9) ◽  
pp. 2861-2876
Author(s):  
Hamidreza Kazemi ◽  
Sam Abdollahian ◽  
Thomas D Rockaway ◽  
Joshua Rivard
Keyword(s):  
Water Quality ◽  
Permeable Pavement ◽  
Water Quality And Quantity ◽  
Permeable Pavement System

Long-term changes in microbial water quality indicators in a hydro-power plant reservoir: The role of natural factors and socio-economic changes

AMBIO ◽  
2021 ◽  
Author(s):  
Gunta Spriņġe ◽  
Māris Bērtiņš ◽  
Lesya Gnatyshyna ◽  
Ilga Kokorīte ◽  
Agnese Lasmane ◽  
...  
Keyword(s):  
Water Quality ◽  
Power Plant ◽  
Hydro Power ◽  
Microbial Water Quality ◽  
Economic Changes ◽  
Water Quality Indicators ◽  
Natural Factors ◽  
Long Term Changes

Effects of Fe addition on sediment P dynamics in a eutrophic lake

2021 ◽  
Author(s):  
Melanie Münch ◽  
Rianne van Kaam ◽  
Karel As ◽  
Stefan Peiffer ◽  
Gerard ter Heerdt ◽  
...  
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Surface Water ◽  
Water Column ◽  
Sediment Cores ◽  
Surface Water Quality ◽  
Water Interface ◽  
Eutrophic Lakes ◽  
Fe Addition

<p>The decline of surface water quality due to excess phosphorus (P) input is a global problem of increasing urgency. Finding sustainable measures to restore the surface water quality of eutrophic lakes with respect to P, other than by decreasing P inputs, remains a challenge. The addition of iron (Fe) salts has been shown to be effective in removing dissolved phosphate from the water column of eutrophic lakes. However, the resulting changes in biogeochemical processes in sediments as well as the long-term effects of Fe additions on P dynamics in both sediments and the water column are not well understood.</p><p>In this study, we assess the impact of past Fe additions on the sediment P biogeochemistry of Lake Terra Nova, a well-mixed shallow peat lake in the Netherlands. The Fe-treatment in 2010 efficiently reduced P release from the sediments to the surface waters for 6 years. Since then, the internal sediment P source in the lake has been increasing again with a growing trend over the years.</p><p>In 2020, we sampled sediments at three locations in Terra Nova, of which one received two times more Fe during treatment than the other two. Sediment cores from all sites were sectioned under oxygen-free conditions. Both the porewaters and sediments were analysed for their chemical composition, with sequential extractions providing insight into the sediment forms of P and Fe. Additional sediment cores were incubated under oxic and anoxic conditions and the respective fluxes of P and Fe across the sediment water interface were measured.</p><p>The results suggest that Fe and P dynamics in the lake sediments are strongly coupled. We also find that the P dynamics are sensitive to the amount of Fe supplied, even though enhanced burial of P in the sediment was not detected. The results of the sequential extraction procedure for P, which distinguishes P associated with humic acids and Fe oxides, as well as reduced flux of Fe(II) across the sediment water interface in the anoxic incubations, suggest a major role of organic matter in the interaction of Fe and P in these sediments.</p><p>Further research will include investigations of the role of organic matter and sulphur in determining the success of Fe-treatment in sequestering P in lake sediments. Based on these data in combination with reactive transport modelling we aim to constrain conditions for successful lake restoration through Fe addition.</p>

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