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讨论了高寒地区寒冻雏形土两个主要土类草毡寒冻雏形土和暗沃寒冻雏形土的持水特性及影响因子。寒冻雏形土具有较高的持水能力，其植物根系分布层（0－20cm）饱和含水量为79．8－143．7％，田间持水量可达33.7－99.6％;且暗沃寒冻雏形土的持水能力高于草毡寒冻雏形土。寒冻雏形土的高持水性能主要与其高有机质含量、低容重有关。
The water holding characteristics and influencing factors of two main soils of frozen soil and alluvial cold frozen soil are discussed. Frozen embryonic soil has a high water holding capacity, its plant roots distribution layer (0-20cm) saturated water content of 79.8-143.7%, field water capacity up to 33.7-99.6%; and dark walnut cold Intrinsic soil water holding capacity is higher than the blanket frozen embryo soil. The high water holding capacity of frozen soil is mainly related to its high organic matter content and low bulk density.