文档介绍：基于聚类分析的梅梁湖水质影响因子研究
(作者:___________单位: ___________邮编: ___________)
摘要:根据2008年4月~11月无锡市环境监测中心站对梅梁湖水域的应急监测数据,对蓝绿藻密度、叶绿素、TN和TP等14个水质参数进行了聚类分析。R型聚类,14个指标总体可分为4类。O型聚类,将22个站点分为7类。结果表明,目前梅梁湖藻类的大量生长和繁殖仍将是要面对的主要问题;在梅梁湖有机污染中,TN是主要的污染因子;相对于TN来说,也许TP是梅梁湖藻类的营养盐限制因子;梅梁湖西北部仍是污染最为严重的水域。
关键词:梅粱湖;聚类分析;水质因子
Abstract:Cluster analysis were applied to the analysis of the blue-green algae density, chlorophyll, TN and TP, such as 14 water quality factors in this paper, based on emergency monitoring data of the Meiliang Lake measured by Wuxi environmental monitoring centre in 2008 from April to November. The 14 Water quality factors was divided into 4 categories by the R-Cluster analysis, and 22 sites was divided into 7 categories by the Q-Cluster analysis. The results showed that the Meiliang lake algae growth and reproduction was still the main problems to face; TN was a major factor in the pollution anic pollutants in Meiliang Lake; Compared to TN, the TP was a nutrient limiting factors. Meiliang Lake north-west was still the most polluted area.
Key words:Meiliang Lake; cluster analysis; water quality factors
梅梁湖是无锡市太湖水质监测的重点,有沙渚、马山、小湾里等重要饮用水源地,关系到全市人民的饮水安全。自2007年“供水危机”后。国家和地方政府都相继投入了极大的“人力和物力”进行综合治理,在“节能减排”、“控源截污”、“蓝藻打捞”、“调水引流”和“生态修复”等方面均有极大的投入并产生了显著的成效。目前,梅梁湖的生态环境已发生了较大的改变,而这些改变对浮游植物的生长又至关重要。为了更好的掌握和研究梅梁湖的水质状况,确保无锡市饮用水源地的水质安全,本文旨在通过对梅梁湖浮游植物的生物指标以及环境因子等14个指标的R型聚类分析,以及22个站点的Q型聚类分析。探讨梅