建设大型水电站,会引起河流热力状的改变。叶尼塞河上克拉斯诺雅尔斯克水电站建造之后,在其下游河段上,冰冻期明显缩。隆冬,由于水库泄水,使长达300公里的河段不冻结。闸下冰冻期的缩短,同水库泄水有关。因经水轮机排放出的水,在冬天也具有2～3℃ Construction of large-scale hydropower stations, will lead to changes in the river thermodynamic. After the construction of the Krasnoyarsk hydroelectric station on the Yenisei River, the freezing period has been significantly reduced on its downstream reach. Winter, due to the reservoir drainage, so that up to 300 km of the river does not freeze. Brake down the freezing period, with the reservoir drainage. Due to water discharged by the turbine, it also has 2 ~ 3 ℃ in winter