江津四面山藻类植物调查

江津四面山的藻类植物共162种(含变种),隶属于68属、33科、7门。文章分析了头道河、响水滩,洪海和大窝铺的藻类区系,对其种类成分、生态分布等作了初步探讨。结果表明,四面山的藻类区系中,以硅藻为多,占藻类总数的41.98％,其次为绿藻,占38.89％,蓝藻占15.43％,其它藻类占3.70％。分析藻类组成成分表明,微污水带种类多于乙型中污水带种类。另外,四面山藻类还有一个山区冷水种类明显的特征。

A PRELIMINARY INVESTIGATION ON THE ALGAE IN SIMIAN MOUNTAINS OF JIANGJIN COUNTY,CHONGQING, SICHUAN

This paper presents the algae investigated and collected in Simian Mountains of Jiangjin county, Chongqing, Sichuan, during September, 1984. The total number of species and varieties examined from these algal specimens is 162 belonging to 68 genera, 33 families, 19 order, 9 classes and 7 divisions.This paper has analysed the algal flora and dealt with their element and its quantitative distributions. The results show that in algal flora of Simian Mountains Bacillariophyta was the most predominant group, being 41.98% of the total species, and next came Chlorophyta 38.89% Cyanophyta 15.43% and the others 3.70%.The floral analysis shows that in the algae of Simian Mountains, Cligosaprobic species are more then ?-mesosaprobic species, and they have conspicuous characteristics of the Cooling algae of the mountainous region as well.