摘要
对荔波小七孔钙华藻类的物种多样性进行了初步研究 ,通过定性、定量的分析 ,共计录 75种 (包括变种和变型 ) ,隶属于 3门 5纲 9目 14科 2 6属。小七孔钙华藻类是以蓝藻中可疑席藻 (PhormidiumambiguumGom .)占绝对优势的单优势藻类群落。多样性分析结果表明 ,该地区钙华藻类的物种丰富度指数dMA的取值范围为0 92 1～ 1.4 82 ,多样性指数H的范围为 0 .0 0 36 6～ 0 .0 1135 ,均匀度e为 0 .0 0 10 9～ 0 .0 0 373。
The species diversity of the tufa algae in Xiaoqikong has preliminarily been investigated in this paper. By means of identifying primarily,the results showed that there are 75 species,varieties and forms,belonging to 26 genera 14 fimilies and 3 divisions.The tufa algae community in Xiaoqikong area is a community that Phormidium ambiguum Gom.becomes dominant species. The analysis indicates that Margalef index was from 0 921 to 1.484;Shannon-weiner index was from 0.003?66 to 0.011?35;Pielou evenness index was 0.001?09 to 0.003?73.The results may suggest that the formation of the tufa can be biogenetic,and their development process is controlled by P.ambiguum Gom.community.
出处
《贵州师范大学学报（自然科学版）》
CAS
2002年第2期35-40,共6页
Journal of Guizhou Normal University：Natural Sciences
基金
国家自然科学基金 (395 6 0 0 10 )资助项目
