Title
Estimating nutrient concentrations from catchment characteristics across the UK
Description
Within a Geographical Information System (GIS) framework, the distributions of nitrate and orthophosphate concentrations at monitoring sites across the UK were examined and empirical relationships with catchment characteristics were established. The mean orthophosphate concentrations were linked strongly with the urban component, and less significantly with effective rainfall and agricultural coverage. This is of strategic importance in relation to phosphorus and the Water Framework Directive. Correspondingly, mean nitrate concentrations were linked to land-use types, base flow index and effective rainfall. Within-catchment residence times and effective-rainfall (runoff) were important in relation to nitrate. The issue of nitrate and the Water Framework Directive is more complex than that for orthophosphate and involves a strong agricultural as well as an urban component.
URL
http://www.uea.ac.uk/env/cserge/research/relu/index
URL Description
ChREAM homepage
Language
English
Author
Helen Davies
Author
Colin Neal

Nitrate; Orthophosphate; Phosphate; water framework directive; rivers; LOIS; Humber; GIS; catchment characteristics

Volume number
11
Issue number
1
Is this item peer reviewed?
No
ISSN
1027-5606
Publisher
European Geosciences Union
Date of publication
01 January 2007
Page reference
550-558
Is this item a pre-print or post-print?
Postprint
Title of journal
Hydrology and earth system sciences
Vancouver
Davies Helen and Neal Colin. Estimating nutrient concentrations from catchment characteristics across the UK. Hydrology and earth system sciences 2007; 11 (1): 550-558.