汾河一库水体富营养化调查  

Investigation of Fenhe Reservoir 1 Eutrophication

作　　者：张志红[1] 赵五红[1] 梁瑞峰[1] 马效东[1] 白剑英[1] 原福胜[1] 杨小林[1] 樊婷[1] 武旭标[1] 宋丽红[1] 

机构地区：[1]山西医科大学公共卫生学院环境卫生学教研室,山西太原030001

出　　处：《环境与健康杂志》2007年第8期600-602,共3页Journal of Environment and Health

基　　金：山西医科大学学生创新项目基金(2004-24)

摘　　要：目的了解汾河一库水体的营养化现状,为实现水资源的可持续利用提供理论依据。方法分别于2005年枯水期(5月)和平水期(10月)采集汾河一库的入口、中心、出口处水样,检测透明度、总氮、总磷、叶绿素-a、藻细胞密度等指标,并通过计算水质综合营养状态指数[TLI(∑)]对其富营养化程度进行综合评价。结果透明度由高到低为中心>出口>入口,且总体上,枯水期>平水期。TN在枯水期各采样点水中的含量均超标,而在平水期各采样点水中的含量均未超标。TP在枯水期和平水期各采样点水中的含量都未超标。枯水期和平水期各采样点水中叶绿素-a含量均较低。枯水期各采样点水中的藻细胞数目均高于平水期;在检测到的藻细胞中,以绿藻门和硅藻门较为多见,蓝藻门少见。枯水期和平水期汾河一库水质的TLI(∑)分别为43.70和43.29。结论汾河一库水质处于中等营养化状态。Objective To know the eutrophic state of Fenhe 1 reservoir. Methods The eutrophic level of Fenhe reservoir 1 was evaluated through measuring transparence,the total concentration of nitrogen(TN),phosphorus(TP),chlorophyll-a level(Chla) and the total count of the algal cells and calculating water TLI(∑). Results Water transparence in low water period was higher than that in common water period,TN concentration in low water period was higher than that in common water period,and it obviously exceeded the related standard limit in Surface Water Environment Quality Standard (GB3838—2002); TP concertration in common water period and low water period did not exceed the limit; Chla level was low;TLI(∑) in common water period and low water period was lower than 50. The total count of the algal cells was 1.67×106/L in low water period,which was much more than that(9.5×104/L) in the common water period. Conclusion Fenhe reservoir 1 is in mesotropher state.

关 键 词：水 叶绿素A 富营养化 

分 类 号：R123.1[医药卫生—环境卫生学]