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观测研究了在初冬冻融过程中麦田土壤水分的变化。结果三次冻融过程中0～20cm耕层土壤不结冻的覆盖处理含水量平均减少2．4％，而冻结的自然状态土壤含水量平均增加0．5％，每次冻结过程土壤含水比不冻结处理平均相对增加2．9％，0～san的表层土壤每次冻结过程土壤含水比不冻结处理平均相对增加2．63％。因此，冬季灌溉不能仅根据干旱天数来决定，分析冬季麦田水分状况，需考虑冻结对水分运动的影响。
The changes of soil moisture in wheat field during the winter freeze-thaw period were observed. Results In the three freezing and thawing cycles, the water content of non-freezing soil cover decreased by 2.4% on average while the frozen natural soil moisture content increased by 0.5% on average. The soil water content of each freezing process was not The average relative increase of freezing treatment was 2.9%. The soil water content of surface soil of 0 ~ san increased by 2.63% on average per freeze. Therefore, winter irrigation can not only be determined according to the number of days of drought. Analyzing the moisture condition of wheat field in winter, the influence of freezing on water movement should be considered.