| 洮滆水系湖库富营养化生态风险的特点与比较 |
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| 引用本文： | 顾谢军,徐东炯,蔡焕兴,谢文理,陈桥,周崴,丁程成,沈丽娟,汤云,张小琼.洮滆水系湖库富营养化生态风险的特点与比较[J].环境监控与预警,2011,3(3):13-17. |
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| 作者姓名： | 顾谢军 徐东炯 蔡焕兴 谢文理 陈桥 周崴 丁程成 沈丽娟 汤云 张小琼 |
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| 作者单位： | 1. 金坛市环境监测站,江苏,金坛,213200
2. 常州市环境监测中心站,江苏,常州,213001 |
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| 基金项目： | 江苏省环境监测基金项目（0802），国家水体污染控制与治理科技重大专项项目（2008ZX07101-007） |
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| 摘 要： | 茅东水库、长荡湖、涌湖、太湖竺山湾是洮滆水系从上游到下游排列的4大典型湖库,2008年的监测分析表明,氮、磷是该水系湖库富营养化的主要污染因子,并沿流域呈加剧趋势,上下游TP质量浓度为0.081～0.296 mg/L,差异小,而TN质量浓度为0.314～5.67 mg/L,差异大,长荡湖到涌湖是洮滆水系首要污染物TN快...
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| 关 键 词： | 湖库 富营养化 生态风险 洮滆水系 太湖 |
| 收稿时间： | 2011/2/18 0:00:00 |
| 修稿时间： | 2011/3/20 0:00:00 |
Feature Analysis and Comparison on Ecological Risk of Eutrophication in Lakes and Reservoir in Taoge River |
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| GU Xie-jun,XU Dong-Jiong,CAI Huan-xing,XIE Wen-li,CHEN Qiao,ZHOU Wei,DING Cheng-cheng,SHEN Li-juan,TANG Yun,ZHANG Xiao-qiong.Feature Analysis and Comparison on Ecological Risk of Eutrophication in Lakes and Reservoir in Taoge River[J].Environmental Monitoring and Forewarning,2011,3(3):13-17. |
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| Authors: | GU Xie-jun XU Dong-Jiong CAI Huan-xing XIE Wen-li CHEN Qiao ZHOU Wei DING Cheng-cheng SHEN Li-juan TANG Yun ZHANG Xiao-qiong |
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| Affiliation: | 1.Jintan Environmental Monitoring Station,Jintan,Jiangsu 213200,China;2.Changzhou Environmental Monitoring Central Station,Changzhou,Jiangsu 213001,China) |
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| Abstract: | Maodong reservoir,Changdang lake,Gehu lake and Zhushan bay were the four representative lakes of Taoge river system.Eutrophication in these four water bodies was studied in 2008 and nitrogen and phosphorus were demonstrated as the main factors of pollution,which was getting more serious along the flow direction of Taoge river.The concentration of total phosphorus varied from 0.081 mg/L to 0.296 mg/L,while the concentration of total nitrogen varied dramatically,ranging from 0.314 mg/L to 5.67 mg/L,especially in the key area between Changdang lake and Gehu lake.Comprehensive trophic status index(TLIc) of these four water bodies was 45.3,63.0,68.0 and 69.5,respectively which showed Gehu lake and Zhushan bay almost reached severe eutrophication.TLIc of the north part was higher than the south.From the time point of view,the highest TLIc of the two lakes appeared from April to September.The phenomenon implied high ecological risk in Gehu lake and Zhushan bay.According to the changes of land use type,the increased ratio of farmland and building land along the flow direction indicated that agriculture non-point source pollution,industrial pollution and domestic pollution in market town were getting worse,which had positive correlation to TSI of lakes(P <0.05).Composition of algae species in these lakes was different,the dominant species of Zhushan bay was Microcystis aeruginosa causing water bloom and the black smelly.The disappearance of water bloom in Changdang lake and Gehu lake in which Merismopedia punctata was the dominant species caused by large scale breeding of Hypophthalmichthys molitrix and Aristichthys mobilis. |
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| Keywords: | lakes and reservoir eutrophication ecological risk Taoge river Taihu lake |
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