CAJ | 학술논문

玄武湖是典型的城市富营养化湖泊,2005年夏季暴发了大面积微囊藻水华,其后以粘土法为主,对微囊藻水华进行了应急治理.为了解应急治理后玄武湖水生态状况的变化,通过分析治理后浮游植物种类和数量变化以及重要理化指标的变化,探讨应急治理对湖水水质和浮游植物群落的影响.通过对比治理前和水华暴发期的监测数据,发现治理后浮游植物数量减少,种类增多;湖水总磷和叶绿素α的浓度都明显降低;水体透明度大幅提高,湖水总氮浓度随浮游植物的密度和菹草的生长而出现波动.
현무호시전형적성시부영양화호박,2005년하계폭발료대면적미낭조수화,기후이점토법위주,대미낭조수화진행료응급치리.위료해응급치리후현무호수생태상황적변화,통과분석치리후부유식물충류화수량변화이급중요이화지표적변화,탐토응급치리대호수수질화부유식물군락적영향.통과대비치리전화수화폭발기적감측수거,발현치리후부유식물수량감소,충류증다;호수총린화협록소α적농도도명현강저;수체투명도대폭제고,호수총담농도수부유식물적밀도화저초적생장이출현파동.
Lake Xuanwu is a typical urban eutrophic lake.Microcystis bloom broke out in a large area of Lake Xuanwu in the summer of 2005.The main method used to control the Microcystis bloom was the application of modified clay.In order to discover the changes of the water ecological situation,the following tests were performed:inquiry into the changes of the quality of water and phytoplanktan after the treatment,the analysis to the type and quantity of phytoplankton and physico-chemical indexes.The results show:the amount of phytoplankton reducod,while the species increased after the treatment,the concentration of Chl.a and TP reduced,with a substantial increase in SD,the concentration of TN was undulatory with phytoplankton density and Potamogeton crispus growth.