夏季扎龙湿地底栖动物双向指示种(TWINSPAN)分类与水质生物监测

Community Structure of Macrozoobenthos and TWINSPAN Classification in Zhalong Wetland in Summer

2011年夏季对扎龙湿地夏季底栖动物种群结构和水质状况进行了综合研究,期间应用双向指示种(TWINSPAN)分析技术,以7个采样点的数据为基础,对各采样点进行了归纳分类。结果显示:扎龙地区水域可以划分为3个类型,6#翁海排干和7#东升水库污生指数(IBP)最小,水质最好,其次为2#采样点,水质稍差,为轻度污染,1#、3#、4#、5#水质较前两组差,3(#扎龙湖)和5(#龙湖)样点已达到β-中污染,但根据污生指数评价标准分析,扎龙湿地整体水质属于轻污染。

The population structure of benthic fauna and water quality status were surveyed in the Zhalong Wetland in summer in 2011, and two-way indicator species （TW1NSPAN） analysis techniques are used to categorize the sampling points based on the data of the seven sampling points. The results showed that the Zhalong Wetland waters was divided into three types： （ 1 ） the minimum pollu- tion Seng Index （IBP） and the best water quality at the 6th point Weng Hal Paigan and the 7th point Dongsheng reservoir; （2） sight worse water quality as light pollution at the 2nd sampling point＇ and （3） worse water quality than the other groups at 1,3,4,5 points. Based on the biological pollution index evaluation standards, the water quality at Zhalong area, as a whole, was found to be light pollu- tion, even though the β medium pollution was observed at No.3 （Zhalong Lake ） and No.5 （Long Lake ）.