苏州河水质与着生生物群落的生态学变化关系的研究

The Researches on Ecological Change of Periphytic Biology Communities with Water Quality in Suzhou CreaK

为了研究苏州河着生生物群落的生态学变化与水质之间的相互联系 ,于 2 0 0 1年夏秋两季对该河流三个断面的着生生物群落的生态学变化进行了连续观察 ,研究结果为 :秋季和夏季相比 ,生物物种数增加 ,其生物优势种密度和个体密度降低 ,多样性指数升高 ;重污染水质指示生物种类数下降 ,轻污染水质指示生物种类数上升 ,表明着生生物群落的生态学变化对水质有较好的监测和指示作用。

In order to study the relationship between water quality and the Ecological changes of biology communities with different seasons in Suzhou CreaK, we monitor continuously the living beings which belong to three different sections of Suzhou CreaK, and analyse its biological communities changes from summer to autumn in the year of 2001.The result of the research is: Comparing in autumn with in summer, the individual density of living beings reduce, the diversity index rise, the species of the living beings which can instruct the polluted water quality drop, the species of the living beings which can instruct the light polluted water rise.