山西运城盐池湖区藻类及分布

在山西运城盐池湖区采到的藻类植物共5门(不包括硅藻门),30科,70属,222种(含变种和变型)．其中蓝藻门4 科17属35种,绿藻门19科40属93种,裸藻门5科10属83种,黄藻门1科1属2种,轮藻门1科2属9种．该湖区的水体根据含盐量的不同可分为4种类型:淡水水体(含盐量<0．05％)、混盐水体(含盐量0．05％-3％)、真盐水体(含盐量 3％-4％)和高盐水体(含盐量>4％)．由于受含盐量的影响,藻类植物在4种水体中的分布有明显差异,随含盐量增加,种类数减少．

Study on species and distribution of algae in salt lakes area in Yuncheng, Shanxi Province

A total of 222 species of algae were collected from the salt lake area in Yuncheng, Shan xi Province , North China, representing 5 didivisions, 30families and 70 genera. Among them 35 speces from 4 families and 17genera in Cyanophyta, 93 speces from 19 families and 40 genera in Chlorophyta, 83 speces from 5 families and 10 genera in Euglenophyta, 2 speces from 1 family and 1 genera in Xanthophyta, 9 speces from 1 family and 2 genera in Charophyta. Concerning the salt concentration of the water, 4 types can be divide, i. e. fresh water (salt concentration <0.05% ) , mesohalinous water (salt concentration 0.05% -3% ), euhalinous water (salt concentration 3% -4% ) and polyhalinous water (salt concentration >4%). Because of the effect of different salt concentration the difference is evident in the distribution of alage in 4 types of the water . It is shown that the higher salinity , the fewer number of species.