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Updated: Jul 18, 2026
11:53
Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
Published on: December 9, 2012
Simulating the evolution of non-point source pollutants in a shallow water environment
1College of Architecture and Civil Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China. mydr8@yahoo.com
Chemosphere
|December 26, 2006
Summary
This study presents a new 2-D mathematical model to track agricultural chemical runoff. The model accurately predicts pollutant fate, improving water quality assessments.
Area of Science:
- Environmental science
- Hydrology
- Agricultural engineering
Background:
- Non-point source pollution from agricultural chemicals impacts water quality.
- Surface runoff and infiltration are key transport pathways for these pollutants.
Purpose of the Study:
- To develop a unified 2-D mathematical model for simulating pollutant evolution in shallow water.
- To improve the prediction of chemical fate in agricultural runoff.
Main Methods:
- Development of a unified 2-D mathematical model integrating infiltration, adsorption, solubility, advection, and diffusion.
- Numerical solution of governing equations using cubic spline integration.
- Experimental validation at the Hydrodynamics Laboratory of Ecole Polytechnique de Montreal.
Main Results:
- The developed model accurately simulates the behavior of surface-applied chemicals.
- Experimental data showed good agreement with the model's computed results.
- The model effectively predicts pollutant partitioning between dissolved, infiltrated, and runoff fractions.
Conclusions:
- The unified 2-D model offers a significant advancement in modeling pollutant evolution in shallow waters.
- This tool can predict the ultimate fate of agricultural chemicals, aiding water quality management.
- The model's accuracy is validated by experimental results, enhancing its practical applicability.
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