基于营养状态指数和灰色模式识别模型的青山国家湿地公园水质评价

Water Quality Assessment of Qingshan National Wetland Park Base on the Nutrition Status Index and Grey-mode Identification Model

以青山国家湿地公园2014—2016年的季度水质数据为基础资料,采用营养状态指数和灰色模式识别模型对青山国家湿地公园水域水质变化趋势和所受污染情况做出了综合分析和评价。结果表明,青山国家湿地公园水体水质整体上达到了地表水Ⅱ类的水质标准,保持在贫营养到中营养程度的营养化状况,有部分年月水质甚至可以达到地表水Ⅰ类标准,水体的自我修复能力较强。说明青山国家湿地公园的水环境管理措施使得湿地水域能够达到地表水水域环境功能和保护目标,生态系统健康状态良好,保证了该湿地生态系统功能的正常发挥。

Based on the quarterly water quality data of Qingshan National Wetland Park from 2014 to 2016,the trend of water quality change and pollution situation in Qingshan National Wetland Park were comprehensively analyzed and evaluated by using the nutrition status index and grey-mode identification model.The results showed that the surface water of Qingshan National Wetland Park were theⅡclass water quality standards on the whole,kept in a"poor nutrition"to"nutrition"in the degree of eutrophication status,and some years could even reach theⅠclass water quality standard,water body’s self-healing ability was stronger.It can be seen that the water environment management measures of Qingshan National Wetland Park enable the water area of the wetland to achieve the environmental function and protection goal of the surface water area,the ecosystem is in good health,and the function of the wetland ecosystem is guaranteed.