Community Structure of the Phytoplankton and Its Relationship with Environmental Factor in Lower Reaches of the Yellow River

• 作者: LIU Jing LV Bin-bin WANG Xiao-chen XING Juan-juan YANG Xing-zhong ZHANG Jian-jun
• 来源期刊: 气象与环境研究：英文版
• 学科: 数学
• 关键词: 植物群落结构 黄河下游 环境因子 浮游植物 多样性指数 环境因素 数据分析 SPSS
• 年，卷（期）: 2012,（7）
• 页码范围: 1-4
• 页数: 4页
• 分类号: O212.1

摘要

[Objective] The research aimed to study community structure of the phytoplankton and its relationship with environmental factor in lower reaches of the Yellow River. [Method] From April to June in 2011, phytoplankton was conducted qualitative and quantitative researches in Lijin in lower reaches of the Yellow River. By combining population characteristics of the phytoplankton, its relationship with environmental factor was discussed. [Result] 114 species and 5 phylum of phytoplankton were observed in the whole river section. The abundance of phytoplankton was 0.90×104-303.35×104 ind/m3, and mean was 27.20×104 ind/m3. The biomass of phytoplankton was 0.008-5.890 mg/m3, and mean was 0.641 mg/m3. Shannon-Weaver diversity index, Pielou evenness index and Simpson's diversity index were respectively 1.59, 0.36 and 0.55. SPSS data analysis indicated that transparency was the uppermost environmental factor affected phytoplankton abundance. Phytoplankton abundance had positive correlation with transparency, and the regression equation was y=-393.8+115.5x-11.1x2+0.35x3 (n=18, R 2=0.952, F=92.665, P<0.01). [Conclusion] The community structure of phytoplankton was unstable, and transparency was the uppermost environmental factor affected phytoplankton abundance in lower reaches of the Yellow River.