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Assessing relative risk of long-term phosphorus loss at field scale using proposed modified Ontario P-Index

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dc.contributor.advisor Biswas, Asim Pirouzan, Parisa 2020-01-10T20:53:10Z 2020-01 2019-12-18 2020-01-10
dc.description.abstract Nutrients originating from agricultural watersheds are known drivers of water quality impairment by causing eutrophication. The recently modified Ontario Phosphorus index (PLATO) is one P loss risk assessment tool to identify the areas vulnerable to P loss. Applicability and accuracy of PLATO is being tested in this study at two sites in Southwestern Ontario at field/intra-field scales. The main objective of this study is to identify the critical source areas to P loss within the Gully Creek watershed using this modified P index. Other P loss risk assessment tools (NCPLAT, APLE) are compared to enhance the results certainty at watershed level. The study also evaluates the spatial distribution of P loss risk within a field in the Bayfield river basin. The results indicate that at both field and sub-field scales the dominant P loss process in the rolling topography studied is particulate P through soil erosion loss. en_US
dc.language.iso en en_US
dc.rights Attribution-NoDerivatives 4.0 International *
dc.rights.uri *
dc.subject Phosphorus Index en_US
dc.subject PLATO en_US
dc.subject CSAs en_US
dc.subject Phosphorus Loss Potential en_US
dc.title Assessing relative risk of long-term phosphorus loss at field scale using proposed modified Ontario P-Index en_US
dc.title.alternative Field scale evaluation of the modified Ontario P-index (PLATO): A case study from Gully creek watershed-Comparative evaluation of three field scale phosphorus loss assessment tools: PLATO, APLE, and NC PLAT-A field scale Critical Source Area (CSA) Identification using proximal soil sensing and digital soil mapping techniques: A case study from Huronview farm en_US
dc.type Thesis en_US Environmental Sciences en_US Master of Applied Science en_US School of Environmental Sciences en_US
dc.description.embargo 2021-01
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Attribution-NoDerivatives 4.0 International Except where otherwise noted, this item's license is described as Attribution-NoDerivatives 4.0 International