吉林省西部潜字泡的水质演化机制及渔业生态环境分析

Analysis on water quality evolution mechanism and fishery ecological environment of Qianzi Lake in the west of Jilin Province

通过对潜字泡多年逐月水质-水量监测及水体初级生产力的调查与分析研究,初步提出了潜字泡的水位-水量关系曲线,湖水水量以受入湖中水及降水影响为主,入湖-出湖水量满足维持生态产出(水产养殖)的要求;水质呈重度富营养化状态,其中总氮、总磷的浓度偏高。浮游生物的生物量及水体鱼产力较高,以优良饵料居多,适宜鲢、鳙鱼等滤食性鱼类生长,渔业生态环境基本满足养殖要求。

Through the monthly water quality-quantity monitoring carried out by Qianzi bubble for many years and the investigation and analysis of the primary productivity of the water body,this paper preliminarily puts forward the water level-water quantity relation curve of Qianzi bubble.The analysis shows that the amount of lake water is mainly affected by water into the lake and precipitation,and the amount of water into and out of the lake meets the requirements of maintaining ecological output(aquaculture).At the same time,the water quality is in a state of severe eutrophication,in which the concentrations of total nitrogen and total phosphorus are on the high side.The biomass of plankton and fish productivity in water are high,and most of them are excellent bait,which is suitable for filter-feeding fish such as silver carp and bighead carp,and the fishery ecological environment basically meets the requirements of culture.