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Modelling approaches to identify critical source areas of phosphorus loss
Authors: Narayan Shrestha, Prasad Daggupati, Ramesh Rudra, Pradeep Goel, RITURAJ SHUKLA, Allataifeh Nabil
Identifier: CSBE21395
Download file: https://library.csbe-scgab.ca/docs/meetings/2021/CSBE21395.pdf
Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » Special Session on Hydrological Modelling: a Tool for Resilient and Sustainable Agriculture
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Description: Identification of critical source area (CSA) of phosphorus loss is crucial for economic viability of best management practices aimed at reducing the phosphorus pollution into receiving water bodies. There exist several approaches; from the use simple topographic index to the use of detailed hydrologic/water quality (H/WQ) models. While the use of H/WQ models are preferred due to their ability to explicitly consider source and transport of pollution, little has been presented in terms of the suitability of H/WQ models in identifying CSAs. In this study, we evaluated suitability of a continuous (Soil and Water Assessment Tool, SWAT) and an event based (Agricultural Non-point Source Pollution, AgNPS) H/WQ models in identifying CSAs of phosphorus loss at two small agricultural watersheds of Southern Ontario. Results highlighted unique features of both H/WQ models, and the preference of one over the other was not that straightforward. Rather, the combined use of both tools was recommended.
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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: SPECIAL SESSION Hydrological modelling I
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Type: Text.Abstract
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Publication type: Presentation
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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DOI:
Description: Identification of critical source area (CSA) of phosphorus loss is crucial for economic viability of best management practices aimed at reducing the phosphorus pollution into receiving water bodies. There exist several approaches; from the use simple topographic index to the use of detailed hydrologic/water quality (H/WQ) models. While the use of H/WQ models are preferred due to their ability to explicitly consider source and transport of pollution, little has been presented in terms of the suitability of H/WQ models in identifying CSAs. In this study, we evaluated suitability of a continuous (Soil and Water Assessment Tool, SWAT) and an event based (Agricultural Non-point Source Pollution, AgNPS) H/WQ models in identifying CSAs of phosphorus loss at two small agricultural watersheds of Southern Ontario. Results highlighted unique features of both H/WQ models, and the preference of one over the other was not that straightforward. Rather, the combined use of both tools was recommended.
Keywords:
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2021-06-11
Technical field:
Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: SPECIAL SESSION Hydrological modelling I
Other information:
Type: Text.Abstract
Format:
Publication type: Presentation
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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