摘要
于2011年6月8日和7月8日,对挠力河国家级自然保护区水体中的藻类群落进行了样品采集,采用冗余分析法,开展了藻类群落结构及其影响因素研究。研究结果表明,在调查期间,共发现藻类326种(包括变种和变型),隶属于8门87属。藻类群落结构以绿藻门为主,其组成为绿藻—硅藻型。7种优势种中,包含了绿藻门、硅藻门、蓝藻门和隐藻门的藻类植物。藻类丰度为1.51×10~5~10.02×10~5ind./L,平均值为4.05×10~5ind./L。藻类群落的Margalef丰富度指数、Shannon-Wiener多样性指数和Pielou均匀度指数都表明,挠力河国家级自然保护区的水体处于轻度污染或无污染状态。冗余分析结果表明,水体pH和水中总磷含量是影响挠力河国家级自然保护区水体中藻类群落结构的主要环境因子。
The algae samples were collected to study the community of algae in waters of Naoli River National Nature Reserve on June 8 and July 8, 2011. In this study, a total of 326 species（including species, varieties and forms） were identified, belonging to 8 divisions and 87 genera. Chlorophyta was the most important group, the algal community was Chlorophyta-Bacillariophyta type. The dominant species include Chlorophyta, Bacillariophyta, Cyanophyta and Cryptophyta. The abundance of algae varied from 1.51×10^5 to 10.02×10^5ind./L（the average was 4.05 × 10^5 ind./L）. Margalef index, Shannon-Wiener index and Pielou index all show that the water of Naoli River National Nature Reserve was mild pollution or non-pollution. The results of redundancy analysis showed that the main environmental factors were pH and total phosphorus, which affecting the algae community structure in Naoli River National Nature Reserve.
出处
《湿地科学》
CSCD
北大核心
2017年第4期546-551,共6页
Wetland Science
基金
国家自然科学基金项目(31470308)资助
关键词
藻类群落结构
冗余分析
环境因子
挠力河国家级自然保护区
algae community structure
redundancy analysis
environmental factor
Naoli River National Nature Reserve
