摘要
通过2006~2009年的调查,结合1979~1980年的资料,分析了东平湖近30年来鱼类、高等水生植物、浮游生物、底栖动物的变化及优势种群的演变,结果表明：东平湖的鱼类种类明显减少但仍以鲤科鱼类为主;高等水生植物发生了耐污性种类逐渐代替寡污性种类的演替变化;浮游植物生物量明显增加而多样性指数明显降低,浮游动物及底栖生物变化较小。应用综合营养指数评价法对东平湖近期的水体营养状况进行评价分析发现,东平湖水体氮磷营养盐发生了显著变化,已发展为中-富营养型湖泊,水生生态系统受到一定程度破坏,并呈现逐渐加剧的趋势。
Through the investigation in 2006~2009,combining the 1979~1980 material,changes and analysis of dominant species of fish,higher aquatic plants,plankton and zoobenthos in Dongping Lake were studied and investigated in the history evolution of nearly 30 years.The results showed that in Dongping Lake,fish species decreased significantly and the main species were still Cyprinids;Higher aquatic plants evolved gradually from Be able to bear or endure corrupt,to oligonucleotide unclean;Biomass increased significantly and diversity index decreased significantly in phytoplankton,while changes unobviousely in zooplankton and zoobenthos.Water nutritional status of Dongping Lake was evaluated with TLI method,and the results showed water nutrients in Dongping Lake changed significantly in recent years.It was subjected to a certain extent damage in recent years and has been a middle-hyper eutrophic lake which showed a gradually increasing trend.
出处
《长江大学学报（自然科学版）》
CAS
2011年第4期242-245,212,共4页
Journal of Yangtze University(Natural Science Edition)
基金
山东省科技厅科技攻关项目(2008GG10006023)
关键词
水质
水生生物
优势种群
卡森指数法
湖泊富营养化
东平湖
water quality
aquatic organisms
dominant population
Carson index
lake eutrophication
Dongping Lake
