【摘要】 1984年2月,我们首次在澜沧江中游采集了藻类植物标本52号,鉴定出88个种及变种,分别隶属于6个门,浮游种类的个体数平均为每升120,000个。在种类和数量的组成上,以硅藻、绿藻、蓝藻为主,硅藻占优势。优势属种是一些适应于在流水中着生的种类,如红藻中的淡水红毛菜和奥杜藻,绿藻中的刚毛藻硅藻中的等片藻、曲壳藻、卵形藻和异极藻等。我国的特有属和稀有种——空盘藻属和中华鱼子菜也有一定的分布;具有食用与药用价值的溪菜数量也较多,由此可见,澜沧江中游有着丰富的藻类植物资源。更多还原

【Abstract】 In February, 1984, we collected 52 phycophyta samples in the middle reaches of Lan Cang Jiang River in Yunnan Province. After having appraisement we found 88 species and varieties belonging to 6 phyla, and the average of plankters is 120,000 per litre. Among these algae the main types are diatoms, green algae and blue-green algae, with diatoms predominating. The epiphytes which are adaptable to flowing water, such as Bangia atro-purpura(Roth.)Ag. and Audouinella Bory of red algae, Cladophora Kutz. of green algae, Diatoma De Cand,Achenanthes Bory, Cocconeis Cl., Gomphonema Ag. of diatoma etc. are predominant genera and species. Jaoa (Jao) Fan and Lemanea (Sachria) Sinica Jao, which are peculiur genera and rare species in China, spread to a certain extent. There are certain amount of Prasiola Meneg. which is edible and has medical values. Thus is can be seen that the phycophyta abounds in the middle reaches of Lan Gang Jiang River.更多还原