生态环境学报2017，Vol.26Issue(4)：649-657,9.DOI:10.16258/j.cnki.1674-5906.2017.04.015
基于SOM的乌梁素海浮游植物群落结构研究
Application of Self-organizing Map to Analysis of Phytoplankton Community Structure in Wuliangsuhai Lake, China
摘要
Abstract
Phytoplankton can produce oxygen and food,which sustain all other life forms, ensuring aquatic ecological balance. Phytoplankton played an important role in aquatic ecosystems. The aim of the present study was to investigate the phytoplankton community and its relationship with different environmental factors in Wuliangsuhai Lake, Inner Mongolia. In the present research, self-organizing map (SOM) combined with fully connected method was applied to classify the phytoplankton community. The phytoplankton community was classified into eight groups, respectivelyⅠ(Cyanobacteria-Chlorophyta-Bacillariophyta),Ⅱ(Cyanobacteria), Ⅲ(Bacillariophyta), Ⅳ(Bacillariophyta-Chlorophyta), Ⅴ(Bacillariophyta-Cyanobacteria), Ⅵ(Chlorophyta- Bacillariophyta),Ⅶ(Chlorophyta-Bacillariophyta),Ⅷ(Chlorophyta-Bacillariophyta-Cyanobacteria). The characteristic of community structure was obvious. The distribution of dominant species was regular. The method of Kruskal Wallis was used to analyze the differences of environmental factors between each phytoplankton community. Water depth, water temperature, pH, and total phosphorus of phytoplankton communities were significantly different (P<0.01); transparency, total nitrogen, and electrical conductivity were similar among different communities (P>0.05). Analysis of the community and environmental factors , Combining with the results of the functional group,Cyclotella,Navicula,Chlamydomonas were more suitable in the environment like the lower water temperature and water depth, as well as the higher concentrations of TP and TN; Scenedesmus, Chlorococcum,Synedra were more suitable in the environment like high concentration of TP and TN;Merismopedia,Chroococcus were more suitable in the environment like the higher water temperature and water depth, lower concentration of TP. The analysis results showed that water temperature was key factors of phytoplankton community structure, nitrogen and phosphorus might be another important factor of phytoplankton community structure.关键词
浮游植物/群落结构/自组织特征映射网络/乌梁素海Key words
phytoplankton/the community structure/self-organizing map (SOM)/Wuliangsuhai Lake分类
生物科学引用本文复制引用
李建茹,李兴..基于SOM的乌梁素海浮游植物群落结构研究[J].生态环境学报,2017,26(4):649-657,9.基金项目
国家自然科学基金项目(51469026) （51469026）
内蒙古青年科技英才计划(NJYT-15-B09) （NJYT-15-B09）
内蒙古自然科学基金项目(2016MS0553) （2016MS0553）
内蒙古人才开发基金项目 （）
内蒙古科技计划项目 （）
内蒙古师范大学校基金 （）
