东寨港自然保护区五个监测站水质变化特征分析

Analysis o Water Quality Changes at the Five Monitoring Stations in Dongzhai Port Nature Reserve

为了解东寨港自然保护区区域水质状况,对其5个监测站所测得水质变化中溶解氧量、高锰酸盐指数等6项指标采用单因子指数法、综合指数法分析与比较水环境质量。单因子评价法分析结果表明:管理局站春、秋、冬季均为Ⅳ类水;溪头村与道学村两个站点均为Ⅴ类水;林市村站在春季与冬季为Ⅱ类水、秋季为Ⅲ类水;塔市站春季为Ⅲ类水、冬季为Ⅳ类水,且主要水质污染指标均为TN。综合指数法分析结果表明:林市村站水质良好,为Ⅲ类水;塔市站水质为Ⅳ类水;管理局、溪头村、道学村3个站点的水质均为Ⅴ类水。

In order to understand the regional water quality status of Dongzhaigang nature reserve,six indexes such as dissolved oxygen and permanganate index measured by five monitoring stations were analyzed and compared by single factor index method and comprehensive index method.The analysis results of single factor evaluation method show that the water in spring,autumn and winter of the authority station is class IV water;Both Xitou village and Daoxue village are class V water;Linshi village station is class II water in spring and winter and class III water in autumn;Tashi station is class III water in spring and class IV water in winter,and the main water pollution index is TN.The analysis results of comprehensive index method show that the water quality of Linshi village station is good,which is class III water;The water quality of Tashi station is class IV water;The water quality of the authority,Xitou village and Daoxue village is class V water.