辽阳市水库富营养化程度分析及防治

Reservoir Eutrophication Analysis and Prevention in Liaoyang City

辽阳市位于辽宁省中部城市群的中心,境内建有大型水库。汤河水库、葠窝水库均为辽宁省主要水源地。随着两个水库周边地区的经济发展,生活污水、农田化肥农药排水量亦随之增加,这些农田排水、生活废水进入水库,增加了水库氮、磷含量,最终导致水体富营养化现象发生。作为辽宁诸多城市主要水源地的汤河水库和葠窝水库保护其水源水质安全达标尤为重要,保护好大型水库的水质安全具有特殊重要意义。文章对2007—2012年的水质监测成果进行分析评价,得出近年来两大水库的富营养化现状,分析产生富营养化的原因,提出了相应的预防措施。

Liaoyang City is located in the center of Liaoning province central city group,and many large-scale reservoirs were built. Tanghe Reservoir and Shenwo Reservoir are both important water sources in Liaoning Province. With the economic development in the surrounding area of two reservoirs,domestic sewage,agricultural fertilizer and pesticide drainage quantity also increases,the farmland drainage,wastewater enter into the reservoir,increasing nitrogen,phosphorus content,finally leading to water body＇s eutrophication. It is particularly important to protect Tanghe Reservoir and Shenwo Reservoir and ensure the water quality safety standards in two reservoirs as the main water sources for many cities in Liaoning Province,and it is of great importance to protect water quality safety of large reservoirs. Base on water quality monitoring data analysis from 2007 to 2012,the eutrophication situation of two reservoirs is evaluated in the recent years,and the reasons causing eutrophication is analyzed and protecting measures are put forward.