Impacts of Nonpoint Source Pollution on Water Quality in the Yuqiao Reservoir
ENVIRONMENTAL ENGINEERING SCIENCE(2017)
Abstract
The Yuqiao Reservoir is an important drinking water source for the city of Tianjin. In recent years, the water quality of this reservoir has been seriously threatened by eutrophication resulting from increased nonpoint source pollution loads. In this study, we used a Soil and Water Assessment Tool (SWAT) model to calculate pollution loads (total nitrogen [TN] and total phosphorus [TP]) in the area surrounding the Yuqiao Reservoir. We then established a coupled two-dimensional hydrodynamic and water quality model that was used to simulate temporal and spatial distributions of TN and TP from June to September 2008. SWAT model results provided water quality boundary conditions for the coupled two-dimensional model. Results indicated that Liu Xiangying and Wu Baihu were the main TN inlets, and the average TN concentration in the reservoir was highest in September (3.74 mg/L). Meanwhile, the TP concentration in the eastern portion of the Yuqiao Reservoir was higher than that in the west, and the average TP concentration peaked in August (1.56 mg/L). The combination of the SWAT model and two-dimensional hydrodynamic and water quality model provides an effective method to simulate water pollution with consideration of various factors.
MoreTranslated text
Key words
nonpoint source pollution,numerical simulation,SWAT,temporal and spatial distribution,Yuqiao Reservoir
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined