+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Phosphorus concentrations in the River Dun, the Kennet and Avon Canal and the River Kennet, southern England



Phosphorus concentrations in the River Dun, the Kennet and Avon Canal and the River Kennet, southern England



Science of the Total Environment 344(1-3): 107-128



Variations in phosphorus (P) concentrations in an agriculturally impacted river draining a Chalk aquifer and an associated canal in the west of the Thames Basin, southern England are examined and linked to agricultural and sewage sources and within river/canal process controls. The study area comprises the River Dun, the adjacent River Kennet and the Kennet and Avon (K&A) Canal. Large seasonal variations are observed for soluble reactive phosphorus (SRP) and dissolved silicon (Si) with low concentrations in the spring and summer times when biological activity is high. The K&A Canal shows the largest SRP and Si concentration declines. This reflects high biological activity coupled with higher temperatures and higher water residence times. The extent of SRP removal is examined in relation to organic (uptake/release with phytoplankton growth/decay) and, to a lesser extent, inorganic (SRP coprecipitation with calcite) mechanisms. Boron (B) is used as a tracer of sewage sources. Agricultural inputs of both dissolved and particulate P (PP) can be important particularly under conditions where the catchment is wet and near surface/overland flow is important: sewage treatment works effluent and septic tank discharges to groundwater also probably provide a major component of the SRP occurring within the water column. The canal, and to a lesser extent the river, acts as sink for P in sewage effluent sources due to the high biological activity especially during the spring and summer. The aquifer probably acts as a major sink for agricultural and septic tank inputs of P.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 012413074

Download citation: RISBibTeXText

PMID: 15907513

DOI: 10.1016/j.scitotenv.2005.02.009


Related references

The water quality of the River Dun and the Kennet and Avon Canal. Journal of hydrology30 330(1-2): 155-170, 2006

The water quality of the River Dun and the Kennet and Avon Canal. Journal of Hydrology (Amsterdam) 330(1-2): 155-170, 2000

On modelling the flow controls on macrophyte and epiphyte dynamics in a lowland permeable catchment: the River Kennet, southern England. Science of the Total Environment 282-283: 375-393, 23 January, 2002

Sewage effluent clean-up reduces phosphorus but not phytoplankton in lowland chalk stream (River Kennet, UK) impacted by water mixing from adjacent canal. Science of the Total Environment 408(22): 5306-5316, 2010

Kennet and Avon Canal. A report of visitor surveys. Recreation Planning Working Paper, British Waterways Board (4): 46, 1978

Economic evaluation of the Kennet and Avon Canal restoration. Countryside Recreation 12(1): 20-24, 2004

An Archaeological Survey and Watching Brief at Garston Lock, Kennet and Avon Canal. Industrial Archaeology Review 17(2): 159-170, 1995

Kennet and Avon Canal Restoration Project. Ecology report for Berkshire. Unknown, 1988

The micromorphology of Quaternary river terrace deposits in the Kennet Valley, Berkshire, England. Earth Surface Processes and Landforms 9(4): 343-355, 1984

Phosphorus sources, speciation and dynamics in the lowland eutrophic River Kennet, UK. Science of the Total Environment 282-283: 175-203, 2002

Continuous monitoring to assess phosphorus dynamics and ecological status in the River Kennet, UK. Diffuse phosphorus loss: risk assessment, mitigation options and ecological effects in river basins The 5th International Phosphorus Workshop IPW5 in Silkeborg, Denmark, 3-7 September 2007: 59-61, 2007

On modelling the impacts of phosphorus stripping at sewage works on in-stream phosphorus and macrophyte/epiphyte dynamics: a case study for the River Kennet. Science of the Total Environment 282-283: 395-415, 2002

Population structure, growth and biomass of brown trout, Salmo trutta, at three sites in the River Kennet, England. Polskie Archiwum Hydrobiologii 45(2): 173-183, 1998

Diurnal and longer term patterns in carbon dioxide and calcite saturation for the River Kennet, south-eastern England. Science of the Total Environment 282-283: 205-231, 23 January, 2002

Incidence and variability of some elements in the non tidal region of the River Thames, and River Kennet, U.K. Science of Total Environment 22(3): 253-273, 1982