水环境指示生物筛选及水质评价方法研究

以齐齐哈尔市近30年地表水生物监测数据、理化监测数据为研究依据,提出一套基于指示生物的地表水体评价方法。该方法将地表水体划分为5个级别,并从中筛选出每个级别对应的指示生物,最终建立一套基于指示生物描述水体污染程度的评价体系。该方法以理化指标为基础,筛选多种优势种作为指示生物,对水体进行综合评价。相比单一生物监测评价指标,该评价方法更能反映整个生态系统状况,从而更客观地反映水体真实情况,有望为地表水体污染评价新方法的建立提供参考。

The Research on Screening Biological Indicator and Biological Environmental Assessment in Surface Water Environment

This study proposes a surface water environment assessment method based on biological indicator which takes the biological and physicochemical surface water monitoring data of Qiqihar city over the last 30 years as the research basis. In this assessment method, surface water was divided into five levels, the corresponding biological indicators were selected, and eventually, a water pollution assessment system based on biological indicator was established. A variety of dominant species were selected as biological indicators based on the physicochemical indexes to give a comprehensive assessment of water body. Compared to single biological monitoring evaluation index, the multi dominant species can reflect the status of the whole ecological system and water pollution even more objectively. This assessment method is expected to provide the reference for establishing new surface water pollution assessment method.