摘要
根据1996年-2010年湘江的水质监测数据,基于湘江流域生态环境质量背景和现状,选用危害较大的10项污染指标,采用单因子污染指数法和综合因子污染指数法对近15年来湘江水质变化进行了分析,研究湘江水质环境演变特征。并选取了2002年-2010年经济和废水排放数据,分析了经济与废水排放之间的相互关系。研究结果表明:湘江流域最为严重的污染物氨氮并没有快速下降的变动趋势,重金属镉在湘江干流和湘江支流中都呈上升趋势,湘江流域的水质环境状况并没有得到很好的改善,污染状况尽管有所缓解,但部分污染物依然比较严重,如总磷和镉等;通过环境库兹涅茨曲线模型模拟,表明水环境与经济发展的关系位于环境库兹涅茨曲线上升段。
Based on the monitoring data and the ecological environment quality of Xiangjiang River during 1996-2010,the research selected 10 pollution indicators and used the single-factor pollution index and comprehensive factor pollution index to analyze the environmental evolution of Xiangjiang River in the past 15 years. The economical a and wastewater discharge data between 2002 to 2010 were studied to analyze the interrelationship between economic and wastewater discharge results. The results showed that the most serious pollutant of Xiangjiang River was ammonia and it had no decline trend,and the heavy metal cadmium and the tributaries had an uptrend. Despite the pollution has eased,some pollutants such as total phosphorus and cadmium still pollute heavily. At the same time,the environmental Kuznets curve model simulation showed that the relationship of the water environment and economic development was in the rising segment of the curve.
出处
《环境科学与管理》
CAS
2014年第5期62-66,共5页
Environmental Science and Management
基金
湖南省哲学社会科学基金重点项目(12ZDB18)
湖南省教育厅优秀青年项目(B31310)
关键词
湘江流域
水污染
演变规律
水质评价
Xiangjiang Basin
water pollution
evolution
evaluation of water quality
