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Predicting epilimnetic phosphorus concentrations using an improved diatom-based transfer function and its application to lake eutrophication management

Lookup NU author(s): Emeritus Professor Steve Juggins

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Abstract

A diatom transfer function based on data from 152 lakes in northwest Europe is derived using the technique of weighted-averaging partial least squares (WAPLS) and applied to Lake Søbygård, a shallow, hypertrophic Danish lake, to infer past changes in epilimnetic total phosphorus (TP) concentrations since the 1930s. The results show that the two-component WAPLS model has low prediction errors (RMSEP = 0.21 log10 TP units) and is applicable to lakes distributed throughout northwest Europe, covering a TP range 10-1000 μg TP L-1. The example shows how the method can provide an estimate of baseline conditions and rates of enrichment, allowing managers to set realistic targets for lake restoration.

Publication metadata

Author(s): Bennion H, Juggins S, John Anderson N

Publication type: Article

Publication status: Published

Journal: Environmental Science and Technology

Year: 1996

Volume: 30

Issue: 6

Pages: 2004-2007

Print publication date: 01/01/1996

ISSN (print): 0013-936X

ISSN (electronic): 1520-5851

URL: http://dx.doi.org/10.1021/es9508030

DOI: 10.1021/es9508030

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