Nutrient monitoring, simulation and management within a major lowland UK river system: the Kennet

This paper describes an assessment of the nitrogen and phosphorus dynamics of the River Kennet in the south east of England. The Kennet catchment (1200 km 2) is a predominantly groundwater fed river impacted by agricultural and sewage sources of nutrient (nitrogen and phosphorus) pollution. The resu...

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Bibliographic Details
Published in:Mathematics and computers in simulation 2004-02, Vol.64 (3), p.307-317
Main Authors: Wade, A.J, Whitehead, P.G, Jarvie, H.P, Neal, C, Prior, H, Johnes, P.J
Format: Article
Language:English
Subjects:
Basin management
Exact sciences and technology
Kennet
Macrophytes
Mathematics
Modelling
Nitrogen
Numerical analysis
Numerical analysis. Scientific computation
Numerical simulation
Phosphorus
Sciences and techniques of general use
Thames
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Summary:This paper describes an assessment of the nitrogen and phosphorus dynamics of the River Kennet in the south east of England. The Kennet catchment (1200 km 2) is a predominantly groundwater fed river impacted by agricultural and sewage sources of nutrient (nitrogen and phosphorus) pollution. The results from a suite of simulation models are integrated to assess the key spatial and temporal variations in the nitrogen (N) and phosphorus (P) chemistry, and the influence of changes in phosphorous inputs from a Sewage Treatment Works on the macrophyte and epiphyte growth patterns. The models used are the Export Co-efficient model, the Integrated Nitrogen in Catchments model, and a new model of in-stream phosphorus and macrophyte dynamics: the ‘Kennet’ model. The paper concludes with a discussion on the present state of knowledge regarding the water quality functioning, future research needs regarding environmental modelling and the use of models as management tools for large, nutrient impacted riverine systems.
ISSN:0378-4754
1872-7166
DOI:10.1016/S0378-4754(03)00097-1