SIMULATION AND CONTROL OF URBAN SHALLOW LAKES WATER ECOSYSTEM WITH AQUATOX
-
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。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.
-
Key words:
- landscape lakes /
- eutrophication /
- multiple pollution sources /
- AQUATOX /
- ecoremediation
-
陈秋燕, 景观湖泊富营养化治理及案例分析研究[J]. 环境科学与管理, 2014,39(7):80-83. 钟嶷盛, 陈莎,曹莹. 北京公园水体中邻苯二甲酸酯类物质的测定及其分布特征[J]. 中国环境监测, 2010,26(3):60-64. BRACK W, MODELKE Y. Models for assessing and forecasting the impact of environmental key pollutants on freshwater and marine ecosystems and biodiversity[J]. Environmental Science and Pollution Research Int, 2005, 12(5):252-256. KARAKOÇ G, ÜNLÜ ERKOÇ F, KATIŘCIOGLU H. Water quality and impacts of pollution sources for Eymir and Mogan Lakes (Turkey)[J]. Environment International, 2003, 29(1):21-27. 张龙涛. 城市景观水体水质模拟和改善技术研究[D]. 西安:西安建筑科技大学,2008,69. 牛志广, 王秀俊,陈彦熹. 湖泊的水生态模型[J]. 生态学杂志, 2013, 32(1):217-225. ANG M L, PEERS K, KERSTING E,et al. The development and demonstration of integrated models for the evaluation of severe accident management strategies-SAME[J]. Nuclear Engineering & Design, 2001,209(1/2/3):223-231. BARTELL S, GARDNER R H, O'NEILL R V. An integrated fates and effects model for estimation of risk in aquatic systems[J]. Aquatic Toxicology and Hazard Assessment, 1988, 10:261-274. HANRATTY M P, LIBER K. Evaluation of model predictions of the persistence and ecological effects of diflubenzuron in a littoral ecosystem[J]. Ecological Modelling, 1996,90(1):79-95. STEVEN. An ecosystem model for assessing ecological risks in Québec rivers, lakes, and reservoirs[J]. Ecological Modelling, 1999,124(1):43-67. PARK R A, CLOUGH J S, WELLMAN M C. AQUATOX:Modeling environmental fate and ecological effects in aquatic ecosystems[J]. Ecological Modelling, 2008, 213(1):1-15. RASHLEIGH B, BARBER M C, WALTERS D M. Foodweb modeling for polychlorinated biphenyls (PCBs) in the Twelvemile Creek Arm of Lake Hartwell, South Carolina, USA[J]. Ecological Modelling, 2009, 220(2):254-264. ZHANG L L, CUI J S, SONG T C,et al. Application of an AQUATOX model for direct toxic effects and indirect ecological effects assessment of Polycyclic aromatic hydrocarbons (PAHs) in a plateau eutrophication lake, China[J]. Ecological Modelling, 2018, 388:31-44. 曹小娟. 洞庭湖AQUATOX模拟与生态功能分区[D]. 长沙:湖南大学,2006,109. 陈彦熹,牛志广,张宏伟,等. 基于AQUATOX的景观水体水生态模拟及生态修复[J]. 天津大学学报, 2012, 45(1):29-35. XU F L, TAO S, DAWSON R W,et al. Lake ecosystem health assessment:indicators and methods[J]. Water Research, 2001, 35(13):3157-3167. 刘永, 郭怀成,戴永立. 湖泊生态系统健康评价方法研究[J]. 环境科学学报, 2004, 24(4):723-729. 许妍,高俊峰,高永年,等. 太湖流域生态系统健康的空间分异及其动态转移[J]. 资源科学, 2011, 33(2):201-209. FATE M E, EE I N. Modeling environmental fate a21nd ecological effects in aquatic ecosystems volume 2:technical documentation[J]. 2004. 王方浩,马文奇,窦争霞,等. 中国畜禽粪便产生量估算及环境效应[J]. 中国环境科学, 2006,26(5):614-617. SONG L. Ambient concentrations and deposition rates of selected reactive nitrogen species and their contribution to PM2.5 aerosols at three locations with contrasting land use in southwest China[J]. Environmental Pollution, 2018, 233:1164-1176. 熊汉锋,万细华. 农业面源氮磷污染对湖泊水体富营养化的影响[J]. 环境科学与技术, 2008, 31(2):25-27.
点击查看大图
计量
- 文章访问数: 269
- HTML全文浏览量: 50
- PDF下载量: 6
- 被引次数: 0