小生境对硅藻群落组成的影响  

EFFECTS OF MICROHABITAT ON THE COMPOSITION OF DIATOM COMMUNITIES

作　　者：林碧琴[1,2,3] 王起华[1,2,3] 刘岩 

机构地区：[1]辽宁大学生物系 [2]辽宁师范大学生物系 [3]辽宁大学分析测试中心

出　　处：《Acta Botanica Sinica》1998年第3期277-281,共5页Acta Botanica Sinica（植物学报：英文版）

基　　金：国家自然科学基金

摘　　要：通过对长白山区一个冷水泉中的硅藻群落组成的研究，分析了微量元素与硅藻群落的关系。经研究认为：１．小型等片藻（Ｄｉａｔｏｍａｍｅｓｏｄｏｎ（Ｅｈｒ．）Ｋｕｔｚ．）的大量存在与该水体周围有大量浮石有关；２．短缝藻属（Ｅｕｎｏｔｉａ）、羽纹藻属（Ｐｉｎｎｕｌａｒｉａ）、异极藻属（Ｇｏｍｐｈｏｎｅｍａ）等的存在与水体中铁含量有关；３．小型等片藻应属于贫盐型中的喜盐性种，而其它一些属种，如Ｅｕｎｏｔｉａ、Ｔａｂｅｌａｒｉａｆｌｏｃｕｌｏｓａ及Ｐｉｎｎｕｌａｒｉａ应属于贫盐型中的嫌盐种。The relation between the trace elements and the diatom communites is described by the analysis of the composition of diatom communities in a cold spring in Changbai Mountain. The results are as follows: 1. Diatoms are the dominant populations in the waterbody and among them there are a large number of Diatoma mesodon (Ehr.) Kutz. This is related to a great quantity of pumicestone around the waterbody; 2.The existence of Eunotia,Pinnularia,Gomphonema etc. is related to the Fe content in the waterbody; 3.D. mesodon belongs to halophile formen in oligohalobe formen, while the other kinds of species, such as some species of Eunotia and Pinnularia belong to halophobe in oligohalobe formen.

关 键 词：小生境 硅藻群落 微量元素 

分 类 号：Q949.271[生物学—植物学] Q948.154