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引用本文:胡开明,逄勇,谢飞,蒋咏,杨树滩.直湖港、武进港关闸对太湖竺山湖水环境影响.湖泊科学,2010,22(6):923-929. DOI:10.18307/2010.0616
HU Kaiming,PANG Yong,XIE Fei,JIANG Yong,YANG Shutan.Effects of Zhihugang and Wujingang closing sluices on water environment of Lake Zhush-an, Lake Taihu. J. Lake Sci.2010,22(6):923-929. DOI:10.18307/2010.0616
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直湖港、武进港关闸对太湖竺山湖水环境影响
胡开明1, 逄勇1,2, 谢飞3, 蒋咏4, 杨树滩4
1.河海大学环境学院, 南京 210098;2.河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 南京 210098;3.江苏省环境科学研究院, 南京 210036;4.江苏省水资源服务中心, 南京 210029
摘要:
建立了太湖风生流水量水质数学模型,并结合该地区的水文特征和实测数据,对流场和浓度场进行了模拟和对比.以竺山湖为研究区域,定量分析了直湖港、武进港关闸情况下不同风向以及不同污染物排放量对竺山湖水环境的影响,并计算了各种治理措施的改善效果.结果表明:采用太湖水量水质数学模型得到的太湖流场、浓度场计算值与实测值均相差不大,水量是污染物对竺山湖水环境影响的主要因素,而风向作用不明显;从雅浦港引水需约16d使竺山湖水质逐渐得到改善并最终稳定,同理从太滆运河引水需约25d.
关键词:  直湖港  武进港  竺山湖  关闸  水环境  太湖
DOI:10.18307/2010.0616
分类号:
基金项目:国家水体污染控制与治理科技重大专项项目(2008ZX07101-001-02,2008ZX07101-002,2008ZX07101-006,2009ZX07528-005-03-02)资助
Effects of Zhihugang and Wujingang closing sluices on water environment of Lake Zhush-an, Lake Taihu
HU Kaiming1, PANG Yong1,2, XIE Fei3, JIANG Yong4, YANG Shutan4
1.College of Environment, Hohai University, Nanjing 210098, P. R. China;2.Key Laboratory for Integrated Regulation and Resources Exploitation on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, P. R. China;3.Jiangsu Provincial Academy of Environmental Science, Nanjing 210036, P. R. China;4.Water Resources Service Center of Jiangsu Province, Nanjing 210029, P. R. China
Abstract:
A 2-D unstable-state model of water quantity and quality on wind-driven current in Lake Taihu was established. By using the measured hydrological data the flow and concentration fields were numerically simulated, and the simulations were intercompared. Lake Zhushan was taken as a case of research area to analyze the impacts of its water environment by Zhihugang and Wujingang closing sluices, which either different wind directions or different pollutant emissions were quantificationally estimated, and the improving effects of several treatment measures were also calculated. The data showed that using 2-D unstable-state model of water quantity and quality equations to calculate showed a small measured difference for the flow and concentration fields. For the effect on water environment of Lake Zhushan, water quantity played a better role than wind directions. It would require 16 days to improve the water quality of Lake Zhushan diverting water from Yapugang River, while 25 days from Taige Canal.
Key words:  Zhihugang  Wujingang  Lake Zhushan  closing sluices  water environment  Late Taihu
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