三峡水库香溪河库湾水体富营养化演化监测分析  

Analysis and monitoring on eutrophication evolution of waters in Xiangxi bay of Three Gorges Reservoir

作　　者：胡圣[1] 邱光胜[1] 印士勇[1] 

机构地区：[1]长江流域水资源保护局长江流域水环境监测中心,湖北武汉430010

出　　处：《人民长江》2012年第12期10-13,共4页Yangtze River

基　　金：南水北调中线工程水质传感网的多载体检测与自适应组网技术研究与示范项目(2011BAC12B01);三峡水库蓄水运用期水环境特征调查及饮用水源地安全评价水专项项目(2009ZX07104-001);三峡库区水环境信息采集技术研究与示范项目(2009ZX075)

摘　　要：三峡水库蓄水后,香溪河平邑口水域成为库区支流水体富营养化演化和水华发生的典型水域。通过对该水域表层水体叶绿素a与各种环境因子持续1 a的高密度监测结果的分析表明,叶绿素a与TP、温度、溶解氧,pH值和浊度正相关性明显,与PO4-P/TP和透明度负相关性明显。虽然叶绿素a与TN的全年监测结果的相关性较差,但水华发生时,TN、TP和叶绿素a存在明显的正相关性,说明水华期间藻类增殖对氮磷有明显富集作用。After impoundment of the Three Gorges Reservoir, the water area of Pingyikou at Xiangxi Stream becomes a typical area of reservoir tributaries where eutrophication develops and water bloom occurs. Through one - year intensive monitoring of chlorophyll- a and various environmental factors in the surface waters, the results show that there is an obvious positive correla- tion between chlorophyll - a and TP, temperature, DO, pH and turbidity, and a negative correlation between chlorophyll a and P04 - P/TP and transparency. Although the chlorophyll - a and TN is poorly related, but there is an obvious positive correlation between chlorophyll - a and TN, TP during water bloom, which reveals that the proliferation of algae has a significant concentra- ting effect on N and P.

关 键 词：水华 叶绿素A 富营养化 香溪河库湾 三峡水库 

分 类 号：X52[环境科学与工程—环境工程]