昆明松华坝水库的浮游藻类与水体营养化程度的关系

Relationship between the Algae and Eutropication of Shonghuaba Reservior in Kunming of Yunnan Province

松华坝水库为昆明市区提供大约７５％的用水量，同昆明人民的工作、生活和工农业生产有着密切的关系。为了保护松华坝水库的环境，改善和提高水库的水体质量，于１９９５年两次对水库的浮游藻类进行了采集调查，共鉴定藻类４８属６６种。群落结构以蓝藻门、硅藻门、绿藻门为主。个体数量、生物量、叶绿素ａ含量年平均分别为３２．５８×１０４个／Ｌ、１．９３ｍｇ／Ｌ、３．１ｍｇ／ｍ３。多样性指数为３．５。结合总磷、总氮、ＢＯＤ、ＣＯＤ、透明度等几项指标，对松华坝水库的营养化程度初步评价为中营养型。并讨论和提出了关于进一步保护水源，控制水体污染的几点建议。

Shonghuaba reservior provides 75% of the total water consumpition to Kunming citizen.It plays very important role in people's live,work and productlon.To protect its environment and improve the quality of water body,the authors investigated it twice in 1995,identified algae 48 genera,66 species from the samples collected.Among them,major groups are Cyanophyta, Bacillarophyta and chlorophyta. Their indivlduals,biomass,Chlorophyll a are 32 58×10 4/L,1 98mg/L and 3 1mg/m 3, respectively.And its diversity index is 3 5 With other indexes including T-N,T-P,BOD,COD and so on,we made an evaluation on it and found that its water body was mid-eutropicated.This paper also dicussed how to protect the reservior's environment and provided several advices.