Canonical Correspondence Analysis of Phytoplankton Community and Environmental Factors in Genhe River

• 作者: Hongxian YU Zhenjiang WANG
• 来源期刊: 亚洲农业研究：英文版
• 学科: 生物学
• 年，卷（期）: 2017,（9）
• 页码范围: 24-27
• 页数: 4页
• 分类号: Q948.8

摘要

To understand the status of phytoplankton community of the Genhe River in the summer of 2015,we investigated the phytoplankton in Genhe River. We identified 5 phyla and 36 species,among which Bacillariophyta（23） were the most,followed by Chlorophyta（10）,Cyanophyta（1）,Chrysophyta（1）,Pyrrophyta（1）. The phytoplankton abundance was（15. 6-810） × 104 ind·L-1; the biomass was（0. 07-2. 876） mg·L-1; Shannon-wiener index was 1. 05-3. 24; Pielou evenness index was 0. 27-0. 96. Using Shannon-wiener index and Pielou index,the water quality of Genhe River was assessed,and the results showed that the water quality was the best at 5# sampling point,the water quality was good in 3#,4#,7#,8#,9# sampling points,and there was a state of pollution at other sampling points. Canonical correspondence analysis and Pearson correlation analysis showed that iron ion,transparency,p H value,water depth and water temperature were important environmental factors that affect the distribution of phytoplankton,and copper ion,nitrite ion and COD also significantly affected the distribution of phytoplankton.