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Modeling Non-point Source Phosphorus Export under southern Ontario Conditions in the Great Lakes Region
Authors: Mekonnen, Balew, Rudra, Ramesh, Goel, Pradeep, Daggupati, Prasad, Biswas, Asim
Identifier: CSBE17197
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Published in: CSBE-SCGAB Technical Conferences » AGM Winnipeg 2017 (with CIGR VI Technical Symposium)
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Description: Non-point source (NPS) pollution such as phosphorus loss due to agricultural activities is a critical problem that has been threatening fresh water resources in southern Ontario. Hydrological and Water Quality (HWQ) models are important to help decision making processes to tackle the problem. However, modeling phosphorus generation and transport processes under southern Ontario conditions remain challenging. This is mainly due to the unique hydrological conditions in the region. In southern Ontario, phosphorus loss occurs under the dominance of saturation excess runoff generation and cold-climate conditions such as frequent freeze-thaw cycles. Such processes, however, are not yet fully incorporated into most HWQ models such as the Soil and Water Assessment Tools (SWAT) model. This work, therefore, aims at upgrading and applying the SWAT model for southern Ontario conditions. To achieve the objectives, the following work is being done: (1) variable source area concept will be incorporated into SWAT to simulate the dominant saturation excess runoff process, (2) the phosphorus module of SWAT model will be upgraded to consider cold-climate conditions, and (3) the modified model will be tested over the Gully Creek watershed, ON, Canada. The presentation will highlight the approach and results related to modeling phosphorus export in agricultural watershed under southern Ontario conditions
Keywords: Phosphorus, Cold-climate, Variable Source Areas, Non-point source, Gully Creek
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Date: 2017-08-07
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Conference name: CSBE/SCGAB 2017 Annual Conference, Canad Inns Polo Park, Winnipeg, Manitoba, 6-10 August 2017.
Session name: Session 1B: Sustaining Water and Soil Quality
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Type: Text.Article
Format: PDF
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Non-point source (NPS) pollution such as phosphorus loss due to agricultural activities is a critical problem that has been threatening fresh water resources in southern Ontario. Hydrological and Water Quality (HWQ) models are important to help decision making processes to tackle the problem. However, modeling phosphorus generation and transport processes under southern Ontario conditions remain challenging. This is mainly due to the unique hydrological conditions in the region. In southern Ontario, phosphorus loss occurs under the dominance of saturation excess runoff generation and cold-climate conditions such as frequent freeze-thaw cycles. Such processes, however, are not yet fully incorporated into most HWQ models such as the Soil and Water Assessment Tools (SWAT) model. This work, therefore, aims at upgrading and applying the SWAT model for southern Ontario conditions. To achieve the objectives, the following work is being done: (1) variable source area concept will be incorporated into SWAT to simulate the dominant saturation excess runoff process, (2) the phosphorus module of SWAT model will be upgraded to consider cold-climate conditions, and (3) the modified model will be tested over the Gully Creek watershed, ON, Canada. The presentation will highlight the approach and results related to modeling phosphorus export in agricultural watershed under southern Ontario conditions
Keywords: Phosphorus, Cold-climate, Variable Source Areas, Non-point source, Gully Creek
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2017-08-07
Technical field:
Conference name: CSBE/SCGAB 2017 Annual Conference, Canad Inns Polo Park, Winnipeg, Manitoba, 6-10 August 2017.
Session name: Session 1B: Sustaining Water and Soil Quality
Other information:
Type: Text.Article
Format: PDF
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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