陕西红碱淖湖泊渔业环境质量状况评价

根据2011年实际监测数据，采用单项污染指数法、综合污染指数法及营养状态指数法对红碱淖湖泊渔业环境水质进行评价，并结合以往监测数据和资料分析了红碱淖湖泊水质污染趋势和盐碱度变化情况。结果表明：红碱淖湖泊渔业环境水质为重度污染，主要污染物为pH、非离子氨、TP、TN和CODMn；湖泊处于富营养状态，氮为富营养化的限制因数；在2005年-2011年，污染呈上升趋势；自80年代起，湖泊盐碱度及硬度持续升高，已对淡水鱼类生存构成严重威胁。

Assessment of fisheries Environment Quality Status on

Based on the Single pollution index,the Comprehensive pollution index and Nutritional status index (Trophie station index), the fishery environment quality of Shanxi Hongjiannao lake water was evaluated according to the actual monitoring data in 2011, and the pollution trend and salinity changes of the Hongjiannao lake water was analysed by combing with the previous monitoring data and related information. The results showed that: the fishing waters of Hongjiannao lake was under heavy pollution , the major pollutants werepH, non-ionic ammonia, the TP, TN and CODMn ,and the pollution trend was upward between 2005 to 2011; the lake was in the eutrophic state, of which nitrogen was the limiting factor; since the 1980s, the lake salinity and hardness continues to rise, pose a serious threat to the survival of the freshwater fish.