“十二五”期间松花江及其支流藻类群落结构研究

Research on Algae Community Structure of Songhua River and Tributaries during 12nd Five-year Plan

2012年-2015年对省内松花江干流及部分支流开展了藻类群落研究,监测区域河流的藻类植物主要由硅藻门和绿藻门植物组成,河流中大部分断面的优势种为硅藻门植物,符合河流的群落分布特征。湖库中,优势种类多为绿藻门植物,个别断面采集到的种类数量极少,总体来看,监测区域内物种丰富度较高,群落结构较为稳定。多样性指数显示,个别断面为轻-中污染,水域整体多样性较好,分布均匀,群落结构较为稳定,年际差异较小。

The algae community structure of Songhua Rivers and its tributaries during 2012 -2015 were studied in this paper. The algae of the monitored area rivers are mainly composed of baeillariophyta and chlorophyta plants, most of the river cross section of the dominant species are bacillariophyta plants. This conforms to the community distribution characteristics of the river, most belong to common in freshwater species. Lake in the library, the dominant species is chlorophyta more plants, the variety of individual section collected few, explain water condition is bad, in general, species richness in monitoring area is higher, the community structure is relatively stable. The diversity index showed that the evaluation results of the individual sections were light to moderate pollution, and the diversity of water area was good, and the distribution was uniform .