摘要
江苏面积大于50 km2的12个湖泊的水质恶化、面积减少、富营养化、湖泊生态系统退化与湖泊受TP、TN的污染和围湖造田等有关。经济快速发展,第二产业结构偏重,排放污染的总量超过湖泊承载力,湖泊底泥释放N、P及入湖河流携带污染物为造成湖泊环境问题的根本原因。建议调整产业结构,执行严格的排放标准,围绕重点区域、重点行业、重点企业和重点污染源治理,由控制COD为主转为控制COD和N、P并重,引水调控水质,建立湖泊资源数据库和生态系统信息网络,开展湖泊污染物来源分析和富营养化机理研究,开展跨界区域统筹对湖泊综合治理。
There are 12 lakes with each area larger than 50 km^2 in Jiangsu Province. In the last years, due to serious pollution of total nitrogen and total phosphorus, and reclaiming land from lakes, the water quality of the 12 lakes has descent continuously, the lakes areas has declined, degree of eutrophication has been worsening, and the eco-system of the lakes has deteriorated seriously. The fundamental causes of the environmental problems of these lakes were rapid economic growth, too large proportion of secondary industry in economic structure, the quantity of pollutants in excess of capacity, the nitrogen and phosphorus released from sludge at the bottom of lakes, and pollutants carried by rivers poured into these lakes. Suggestions were given such as the structure of industry adjustment, execution of restrictive emission standards, the treatment emphasis on the key areas, key businesses, key enterprises and key pollution sources shifted from COD controlling to COD and nitrogen phosphor controlling, water transfer to improve the water quality, setting up the data base of lake resources and the information network of ecosystem. Also analysis of source of lake pollutants, research on mechanism of eutrophication and cross-boundary comprehensive management should be carried out.
出处
《环境监测管理与技术》
北大核心
2008年第2期46-50,共5页
The Administration and Technique of Environmental Monitoring
基金
江苏省科技基金资助项目(BK2007269)
关键词
湖泊
水环境
污染控制
江苏省
Lakes
Water environment
Pollution control
Jiangsu
