连云港入海河流着生藻类群落特征及其水质评价

季相星; 叶敏强; 姜毅; 于爱琛

引用本文:	季相星，叶敏强，姜毅，于爱琛.连云港入海河流着生藻类群落特征及其水质评价[J].环境监控与预警,2020,12(6):47-51
	JI Xiang-xing, YE Min-qiang, JIANG Yi, YU Ai-chen.The Community Characteristics and Water Quality Evaluation of Periphytic Algae in Seagoing Rivers of Lianyungang[J].Environmental Monitoring and Forewarning,2020,12(6):47-51

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连云港入海河流着生藻类群落特征及其水质评价
季相星，叶敏强，姜毅，于爱琛
江苏省连云港环境监测中心，江苏连云港 222001

摘要:

于2019年3月和7月对连云港主要入海河流着生藻类群落结构进行了调查，并基于水生态环境质量综合指数对15条入海河流水质进行评价。结果表明，良好以上的断面占总数的66.7%，调查共发现硅藻、绿藻、蓝藻、裸藻、黄藻及金藻共计106种着生藻类，其中春季60种，夏季80种；硅藻为全年优势种。着生藻类全年平均密度为42 266.7 个/cm²，各断面密度差异较大。Shannon-Wiener多样性指数（H’）为1.46~392，平均值为2.93，其中夏季H’_平均为3.07，高于春季的2.80，总体呈放置7 d样品多样性高于14 d样品的趋势。

关键词: 连云港入海河流着生藻类群落结构水质评价

DOI：

分类号:X826

文献标识码:B

基金项目:江苏省环境监测科研基金资助项目（1715）

The Community Characteristics and Water Quality Evaluation of Periphytic Algae in Seagoing Rivers of Lianyungang

JI Xiang-xing, YE Min-qiang, JIANG Yi, YU Ai-chen

Jiangsu Lianyungang Environmental Monitoring Center, Lianyungang, Jiangsu 222001, China

Abstract:

A survey on periphytic algae community structure in main seagoing rivers of Lianyungang was conducted in March and July 2019. The water quality of 15 seagoing rivers were evaluated based on comprehensive evaluation index of water quality. The results of our survey showed that 66.7% of the total sections were good or above.106 species of periphytic algae, including diatom, green algae, blue algae, euglena and yellow green algae were found in Lianyungang seagoing rivers. 60 species were found in spring and 80 were found in summer. Diatom dominated the community all over the year. The annual mean abundance of periphytic algae was 42 266.7 cell/cm². Big difference existed among sections. Shannon Wiener index (H’) was between 1.46~3.92, with a mean value at 2.93. The mean summer H’ was 3.07, which was higher than spring value of 2.80. Diversities of samples placed for 7 days were higher than those of 14 days. Based on the comprehensive evaluation index of water quality, 66.7% of sections were evaluated as good and above.

Key words: Lianyungang Seagoing rivers Periphytic algae Community structure Water quality evaluation