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Predicting the effect of land use on stream water quality in the UK

Research output: Contribution in Book/Report/ProceedingsChapter

Published

Publication date1991
Host publicationSediment and Stream Water Quality in a Changing Environment: Trends and Explanations
EditorsN. E. Peters, D. E. Walling
Place of publicationWallingford
PublisherInstitute of Hydrology, IAHS Press Wallingford
Pages209-218
Number of pages10
Volume203
ISBN (Print)0947571086
Original languageEnglish

Abstract

The effect of land use change at both long (90 year) and short
(single water year) time scales are discussed. Current annual sediment and
solute export from this area of arable and grassland farming in SW Devon
is of the order: 61 for NH4-N, 2821 for N03-N, 21 for P and 14401 for suspended sediment. Sediment cores from the lake receiving these catchment
inputs provides long-term evidence for an increase in erosion and nutrient
export since the 1950s. A significant increase in stream NO3" load is also
recorded over the past 30 years. As a result of catchment inputs, the lake is
now hypertrophic. Models currently used to predict the effect of land use
change on stream water quality are limited because they fail to account for
the effect of hillslope hydrological pathways and the physical and biochemical modification of the potential nutrient and sediment load.

Bibliographic note

Predicting the effect of land use on stream water quality in the UK 1 cites: http://scholar.google.com/scholar?num=100&hl=en&lr=&cites=6567811306237543837