红碱淖渔业环境质量评价

Assessment of Fishery Environment Quality of Hongjiannao Lake

根据2011年5月和8月的监测数据,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渔业环境水质进行评价,并结合以往监测数据和资料分析红碱淖水质污染趋势和盐碱度变化情况。结果表明:红碱淖渔业环境水质为重度污染,主要污染指标为pH、非离子氨、TP、TN和CODMn,在2005-2011年,污染呈上升趋势;营养状态指数表明湖泊处于富营养状态;自20世纪80年代起,湖泊盐碱度及硬度持续升高。

Based on the single pollution index,the comprehensive pollution index and trophic state index（TSI）,the fishery environment quality of Hongjiannao Lake water was evaluated according to the monitoring data in 2011,and the pollution trend and salinity changes of the Hongjiannao Lake water was analyzed by combing with the previous monitoring data and related information.The results showed that the Hongjiannao Lake was under heavy pollution,the major pollutants were pH,non-ionic ammonia,TP,TN and CODMn,and the pollution trend was upward from 2005 to 2011.The comprehensive pollution index showed that the lake was in the eutrophic state.Since the 1980s,the lake salinity and hardness continue to rise,attention should be paid to the hazards of freshwater fish.