黔中水利枢纽工程低温水的环境保护措施

Environmental Protection Measures for Low Temperature Water in Qianzhong Conservancy Project

黔中水利枢纽工程是集灌溉、城市供水、发电、县城和乡镇供水、人畜饮水为一体的综合利用项目。由于水源工程的拦河大坝高达162.7 m,水库蓄水后将形成分层型水温结构,低于水库水面14 m以下的库水将对灌区一定范围的农作物生长产生不利影响。黔中水利枢纽工程在大坝设计中采取了分层取水方案,为解决具有较大消落深度的大中型水库低温水环境问题提供了借鉴。

Qianzhong Conservancy Project is a utilization project for irrigation,urban water supply,power generation,county and township water supply,drinking water and so on.Because the weir dam height of water project reaches 162.7m,reservoir water will form the stratified temperature structure after impoundment.The reservoir water with 14m below the water surface will produce adverse effects to the growth of a range of crops within irrigation.The dam design for Qianzhong Conservancy Project had taken the program of taking water from different elevation.It provides a reference to solve low temperature water environmental issues for large and medium-sized reservoirs with larger falling depth.