摘要
采用在线测定和取样分析的方法 ,对深圳西沥水库水质转化规律进行了初步研究 ,结果表明 :该水库是一个水温分层型水库 ,水温在 5m以下发生温跃现象 ,溶解氧和pH值在温度分层的同时发生分层现象 ,水库底部转变为还原状态 ;水质沿水深方向呈现逐渐下降的趋势 ,缺氧、暴雨和水库自净能力下降等可能是引起水库水质变化的主要原因 ;水质沿水流方向有逐渐改善的趋势。
Preliminary research is conducted on the transformation rule of water quality of Xili Reservoir in Shenzhen using on_line measurement and sampling analysis. The results of the research show that the reservoir is of a type of temperature delamination; temperature leap happens at the 5 meters below the water surface; delamination phenomena of dissolved oxygen and pH_value happen simultaneously with temperature delamination; the status of water at the bottom of reservoir is deoxidize; the water quality degradation with water depth. The main causes for water quality transformation are anoxia, storm and degradation of self_purification of the reservoir; and the water quality is improved along the direction of water flow.
出处
《中国农村水利水电》
北大核心
2002年第12期40-43,共4页
China Rural Water and Hydropower
关键词
西沥水库
水质
水温分层
饮用水源
reservoir water quality water temperature delamination
