季节性冻土融冻期间的土壤蒸发 ,冻土层上水形成及动态有其独特变化规律 ,5～ 6月水体蒸发值最大 ,而土壤蒸发却相反。融冻层蓄水除向上运动补给蒸发需要 ,却不补给潜水 ,而在冻层上形成壤中流横向运动补给河流 During the freezing period of seasonal frozen soil, soil evaporation, formation and dynamics of permafrost water have their own unique variation rules. From May to June, the evaporation value of the water body is the largest while the soil evaporation is opposite. In addition to the thawing layer of water recharge upward movement supply needs, but not recharge the submersible, and in the frozen layer formed on the middle of the river flow lateral movement of the river