Modelling the effect of cultivation on the dispersion of pollutants in soil

A - Papers appearing in refereed journals

Lane, P. W. and McGrath, S. P. 1994. Modelling the effect of cultivation on the dispersion of pollutants in soil. The Statistician. 43 (4), pp. 537-549.

AuthorsLane, P. W. and McGrath, S. P.
Abstract

This is a case-study of non-linear modelling in environmental statistics. In a long-term agricultural experiment, pollution of soil by heavy metals from sewage sludge appears to decrease over time. This is explained by cultivation activity which disperses the pollution outside the treated plots. A two-dimensional diffusion model is adapted to quantify the rate of dispersal and is fitted to series of samples taken across the experiment. This demonstrates that most of the original pollution is still present in the soil. The effect of serial correlation of the observations is investigated but found not to affect the results.

KeywordsStatistics & Probability
Year of Publication1994
JournalThe Statistician
Journal citation43 (4), pp. 537-549
Digital Object Identifier (DOI)doi:10.2307/2348138
Open accessPublished as non-open access
Funder project or code101
923
207
219
ISSN00390526
PublisherWiley

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