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Modelling Orthophosphate Retention within Agricultural Soils of the Rondeau Bay Watershed

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dc.contributor.advisor Evans, Les
dc.contributor.advisor Voroney, Paul
dc.contributor.author Nowell, Peter Mitchell
dc.date.accessioned 2016-09-15T17:47:12Z
dc.date.available 2016-09-15T17:47:12Z
dc.date.copyright 2016-09
dc.date.created 2016-08-30
dc.date.issued 2016-09-15
dc.identifier.uri http://hdl.handle.net/10214/10014
dc.description.abstract This research was undertaken to investigate a novel approach to environmental phosphorus assessment using both chemical modelling techniques and digital soil mapping methods. A chemical model was developed to predict the partitioning of adsorbed and aqueous forms of inorganic phosphate within mineral soils of a small agricultural catchment within the Rondeau Bay watershed. This model accounts for changes in soil pH as well as clay and iron content. The resulting model was most accurate over the pH range 5 to 8. The second focus of this research project was an assessment of digital soil mapping approaches used to predict the spatial distribution of soil pH, clay content, iron content, and Olsen-extractable phosphorus across the study area. The results indicate that point observations used in conjunction with data that describes topographic position, parent material, and land management are suitable for accurately predicting these soil attributes at the within-field scale on a field-by-field basis. en_US
dc.language.iso en en_US
dc.subject phosphorus en_US
dc.subject Research Subject Categories::NATURAL SCIENCES en_US
dc.subject Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Soil science::Soil chemistry en_US
dc.subject Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Soil science en_US
dc.subject Lake Erie en_US
dc.subject Research Subject Categories::NATURAL SCIENCES::Chemistry::Environmental chemistry en_US
dc.subject phosphate adsorption en_US
dc.subject surface complexation modelling en_US
dc.subject soil phosphorus en_US
dc.subject Research Subject Categories::NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Physical geography en_US
dc.subject Research Subject Categories::NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Exogenous geochemistry en_US
dc.subject Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Soil science::Pedology en_US
dc.subject digital soil mapping en_US
dc.title Modelling Orthophosphate Retention within Agricultural Soils of the Rondeau Bay Watershed en_US
dc.type Thesis en_US
dc.degree.programme Environmental Sciences en_US
dc.degree.name Master of Science en_US
dc.degree.department School of Environmental Sciences en_US
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