怒江梯级水电开发对水温的影响及对策研究

Influence of Cascade Hydropower Development on Water Temperature in Nujiang River and Its Countermeasures

为科学评估水电开发带来的温度变化影响,应用MIKE11软件建立水温预测模型,以怒江中下游"一库四级"梯级开发方案为研究对象,对各库区水温结构及下泄水温进行预测,研究库群形成状态、水库调度运行方式等对河道水温的累积作用。针对梯级水电建成后的冷水下泄问题,从取水方式和调度方式等方面提出相应对策,为梯级水电站运行的水温控制提供一定技术支撑。

In order to evaluate the influence of four-cascade hydropower development in the middle and lower reaches of Nujiang River on water temperature, the MIKE11 software is used to establish the water temperature prediction model for predicting the water temperature structure of four reservoirs and the temperature of discharged water. The cumulative effects of reservoir status and operation manners on water temperature are also analyzed. For dealing with the issue of cold water discharge after the completion of cascade reservoir construction, the countermeasures are proposed from the aspects of reservoir discharge and operation manners. This study will provide technical supports for water temperature control of cascade hydropower stations in Nujiang River.