Ice will not only influence shipping, transportation, hydraulic power, water and sewage, but also lead to ice flood and cause huge losses when ice blocks the river course severely.

• 河流中的冰凌不仅直接影响到冬季的航运、交通、引水发电、给排水等水利工程建设事业，而且当冰凌严重阻塞河道时，往往会导致凌洪泛滥成灾，给人民生命财产带来重大损失。