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Literature is reviewed describing through soil colloid-facilitated transport of contaminants such as phosphorus, pesticides and other agrochemicals, plus a range of biological microorganisms. Smaller microorganism (viruses and bacteria) are transported mainly (like chemical contaminants) by adsorption onto otherwise harmless mobile colloidal clay particles or soil organic matter. Potential impediments...
In order to ascertain the limitations of current soil phosphorus models, three dynamic models are reviewed and compared, along with a more general contaminant transport model which has been applied to phosphorus dynamics. These models are ANIMO from the Netherlands, GLEAMS and DAYCENT from the USA, and MACRO from Sweden. The model concepts and constituent processes are analysed with particular reference...
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