【摘要】 冻结滞水指因冬季的冻结作用在包气带冻土层内形成的季节性固态地下水。在冻结期间包气带水具有明显的倒置分带性：（１）冻结滞水带；（２）过渡水分带；（３）支持毛管水汽化输水带。冻结滞水含水率比冻结前一般增加２０％～３０％，相当于给水度为０．０６的含水层中潜水位下降２．５４～３．７４ｍ时给出的水量。冻结滞水是干旱、半干旱地区农、林、牧业生产持续发展的可贵的水资源之一。更多还原

【Abstract】 The frozen perched groundwater is the seasonal soild state groundwater formed in the aeration frozen layer as a result of winter freezing.In the frozen period,the vadose water in aeration zone has an obvious inverted zo ning: (1)The frozen perched water zone,(2)the transitional water zone,(3)The capillary water holding vapor zone.The moisture content of the frozen perched groundwater increases by 20 to 30percent than that of before winter freezing,corresponding to the water yield from on aquifer of a specific yield 0 06 with a water level fall of 2 345m to 3 74m.The frozen perched groundwater is one of the valuable water resources for the lasting development of agriculture,fovestry and animal husbandry produtions in arid and semiarid areas.更多还原