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测定了山西太岳灵空山地区油松人工林下土壤水分的物理性质和动态变化，结果表明：林地土壤田间持水量为２８．７３Ｖ％，稳定凋萎含水量７．０２Ｖ％，有效水分范围２１．７１Ｖ％；土壤水分的季节变化分为３个时期：即春末夏初水分消耗失墒期，夏季水分恢复蓄墒期，秋季水分缓慢消耗减少期；土壤水分的剖面变化分为３层：即活跃层（土壤深度０～３０ｃｍ），次活跃层（３０～５０ｃｍ），深墒较稳层（５０ｃｍ以下）；春、夏、秋３个季节（１９８９年）林地的贮水量分别为９８．８、１３９．８、１４６．３ｍｍ，蒸发散量分别为１．０３２、１．２４２，０．８１４ｍｍ／ｄ
The physical properties and dynamic changes of soil moisture in Pinus tabulaeformis forest in Taiyue Mountain of Taiyuan were measured. The results showed that the field water capacity of forest soil was 28.73%, the steady water content was 7.02%, the effective water content was 21 .71V%. The seasonal changes of soil moisture were divided into three periods: water loss and soil moisture loss in early spring and early summer, soil moisture recovery and soil moisture storage in autumn, and decrease in water consumption in autumn. The soil water profile was divided into three layers: The active layer (soil depth 0 ~ 30cm), the sub-active layer (30 ~ 50cm), the deep moisture is more stable layer (50cm below); spring, summer and autumn three seasons (1989) woodland water storage capacity were 98. 8,139.8,146.3mm, respectively, the evapotranspiration were 1.032,1.242,0.814mm / d