生态学报2017，Vol.37Issue(18)：5993-6004,12.DOI:10.5846/stxb201606211215
城市小型湖泊浮游植物群落结构特征及演替规律——以武汉沙湖为例
Distribution and succession pattern of phytoplankton communities in a small urban lake, Sand Lake in Wuhan City, China
摘要
Abstract
Small urban lakes are highly sensitive to changes in their environment and are closely associated with the surrounding urban systems.The distribution and succession pattern of phytoplankton can significantly influence the entire ecosystem in a small urban lake.From March to December 2015,phytoplankton and water quality were monitored in Sand Lake,Wuhan city,China.In total,312 species were detected representing 10 phyla,with Chlorophyta,Bacillariophyta,and Cyanophyta being the major phyla represented.Biodiversity indices were calculated using the methods of Shannon-Wiener,Simpson,Pielou,and Whittaker.The biodiversity indices and environmental factors were subjected to correlation analysis,principal component analysis,and cluster analysis.Three interspecific association indices and the calibrated coefficients ofx2 test were calculated.The results showed that the phytoplankton reached a stable state in summer and autumn,during which the environmental factors were the main influence;the effect of constant ion concentration was greater than that of temperature,particularly those of sodium and magnesium.Analysis of the data for the dominant species showed that Chlorophyta and Cyanophyta were significantly correlated,whereas Bacillariophyta showed no significant correlation with other phyla.A significant correlation occurred between summer and autumn dominant species,while dominant species in winter and spring showed no significant correlation with those in other seasons,which could be attributed to the low stability of the phytoplankton during this period.关键词
城市湖泊/浮游植物/优势种/α多样性/常量离子/种间联结性Key words
urban lake/phytoplankton/dominant species/α diversity/constant ion/inter-specific association引用本文复制引用
鲁蕾,吴亦潇,张维昊..城市小型湖泊浮游植物群落结构特征及演替规律——以武汉沙湖为例[J].生态学报,2017,37(18):5993-6004,12.基金项目
国家自然科学基金(41331174) （41331174）
江西省水利厅重大科技项目(KT201412) （KT201412）
水利部科技推广项目(TG1520) （TG1520）
