江湖关系演变对洞庭湖水质变化影响研究

Impact of the Evolution of River-lake Relation on the Change of Water Quality of Dongting Lake

利用长江中下游地区监测站点1950～2009年逐日水文监测数据及1995～2010年水质分析资料，结合Spearman相关分析和综合污染指数评价法，分析了长江中下游江湖关系演变对洞庭湖水质变化影响，并面向洞庭湖水环境安全提出一系列调控措施，旨在为洞庭湖地区水质改善提供理论基础与技术支持。

On the basis of daily hydrological monitoring data from 1950 to 2009 at the monitoring sites in the midstream and downstream areas of Yangtze River and the analysis data of water quality from 1995 to 2010, impact of the evolution of river-lake relation on the change of water quality of Dongting Lake was studied by use of Spearman correlation analysis and comprehensive pollution index assessment. A series of control measures were then proposed towards the water environmental safety of Dongting Lake, aiming at providing theoretical basis and technical support to the improvement of the water quality of Dongting Lake.