摘要
本文研究了乌梁素海水化学特点对水生生物区系的影响,生物区系特点与湖泊富营养化的问题。 发现湖泊中浮游植物87种,浮游动物64种,底栖动物12种。其中富营养型的生物种类占绝对优势,浮游植物群落结构为绿藻+兰藻+硅藻型,而兰藻为优势种,占各站优势种和次优势种属的46％;浮游动物中轮虫和原生动物合计占73％;底栖动物中羽摇蚊在十个站点中有六个的数量占90％以上。同时,湖水中营养成分N、P含量丰富,总磷和三氮的含量均已超出或接近日本规定的富营养化标准,表明湖泊已富营养化。 但是,BOD、DO、pH、矿化度、钾离子量和一价离子与二价阳离子数量的比例,可能尚不是湖中限制因子,故湖泊富营养化未达到严重的程度。
In this paper, the effect of hydrochemistry character on hydrobios fauna and the relation between biological form and eutrophication were studied.Dealing with wu Liang Su Hai as a whale, there are 87 species of phytoplankton. 64 species of zooplankton, 12 species of zoobenthos. Number of species for eutrophication occupies absolute dominant position. Structure of various phyto-planktin groups are chlorophyto and cyanophyta and bacillariophyto. However, the cyanophyta is predominant species, it occupies 46 % in various station; The rotatoria and protozoa comprised 73% of total species in the community; Tendibes plumosus is predominant species in zoobenthos, abundance comes up to (?) (?) six station. And the concent are rich in N, p of the lake, therefore, the eutrophication of the lake were formed.However, BOD, DO, pH, Salt, amount of K+ ion, and the ratio betweer amount of one-valence and two-valence cation ion, they may not be limit element in the lake, therefore, the eutrophication degree of the Wu Liang Su Hai is not serious.
出处
《环境科学研究》
EI
CAS
1988年第4期14-23,共10页
Research of Environmental Sciences
