基于AQUATOX的城市景观湖泊的水环境模拟与控制

胡思骙; 张诗军; 任晨媛; 王庆国; 梁英; 刘朝榕

doi:10.13205/j.hjgc.202009014

基于AQUATOX的城市景观湖泊的水环境模拟与控制

doi: 10.13205/j.hjgc.202009014

1. 四川大学建筑与环境学院, 成都 610065;
2. 成都市湿地保护中心, 成都 610072;
3. 成都大熊猫繁育研究基地, 成都 610081

基金项目:

成都大熊猫繁育研究基地开放课题（CPB2017-02）。

详细信息

作者简介:
胡思骙(1995-),男,硕士研究生,主要研究方向为城市水环境污染治理。Husk0924@163.com

通讯作者:
王庆国,男,副教授,博士,主要研究方向为水处理技术研究。wateredu@163.com

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出版历程
- 收稿日期: 2019-10-15

SIMULATION AND CONTROL OF URBAN SHALLOW LAKES WATER ECOSYSTEM WITH AQUATOX

1. The College of Architecture and Environment, Sichuan University, Chengdu 610065, China;
2. Chengdu Wetland Protection Center, Chengdu 610072, China;
3. Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China

摘要

摘要: 城市浅水景观湖泊因其在水循环系统中的特殊性和其景观功能容易产生富营养化污染。针对位于成都市的某小型景观水体，混合了点源污染和非点源污染多种污染源，可持续生态维护难度较大，探索了利用水生态系统模型AQUATOX来模拟和预测该景观水体的水环境状态。根据为期1年的水质参数监测数据，分析不同来源污染负荷对水体营养物质含量的影响。利用实测数据拟合模型结果，分析模型运行的敏感参数，对相关参数进行率定，以增加模型对该水体水生态演变预测的准确性。使用高度拟合模型对水体富营养化关键决定参数TP、TN以及NH₃-N对该浅水景观湖泊水质的影响，利用SWMM模型模拟LID措施对入湖雨水污染负荷的削减效果，LID措施后TP和TN的雨水径流污染负荷分别减少59.34%和58.39%，NH₃-N的负荷降低21.94%，对降低面源污染效果负荷良好。水体中TP、TN和NH₃-N含量的平均削减效果分别为38.57%、42.2%和58.31%，可为景观水体富营养化生态修复提供理论指导。
- 浅水景观湖泊 /
- 水体富营养化 /
- 复合污染源 /
- AQUATOX /
- 生态修复
Abstract: Urban shallow landscape lakes suffered high eutrophication risk because of their special characters and functions in the water circulation system. Using a landscape lake located in Chengdu in Southern China, with a mixture of point source pollution and non-point source pollution, to which sustainable ecological maintenance was more difficult, we explored the methodology of AQUATOX to simulate and predict the state of this lake. According to the one-year monitoring data of water quality parameters, and trophic index was used to assess the eutrophication state to characterizing water pollution status. Using the measured data to fit the model results, we analyzed the sensitive parameters of the model operation, and determined the relevant parameters to increase the accuracy of the model in predicting the water ecological evolution of the water body. Using the height-fitting model to determine the effect of TP, TN and NH₃-N on the water quality of shallow water landscapes, and SWMM model to simulate the effect of LID measures on the reduction of rainwater pollution load in the lake. After LID measures, the stormwater runoff pollution load of total phosphorus and total nitrogen decreased by 59.34% and 58.39%, respectively, and the ammonia nitrogen load decreased by 21.94%. and the average reduction rates of TP, TN and NH₃-N in water were 38.57%,42.2% and 58.31%, respectively, which provided theoretical guidance for eutrophication and ecological restoration of landscape waters.
- landscape lakes /
- eutrophication /
- multiple pollution sources /
- AQUATOX /
- ecoremediation

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