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本研究采用烘干称重法,对内蒙古林科院内正常生长的25～30年生的人工樟子松、油松和云杉林下土壤水分的变化进行了观测。结果表明:在整个生长季内,林内降至土壤表面的雨量,最大下渗深度不超过40Cm,而对照地由于整个土壤剖面含水率保持在田间持水量范围,降水下渗深度达200Cm以下,在0～200Cm深度内,樟子松、油松和
In this study, the change of soil moisture under artificial Pinus sylvestris, Pinus tabulaeformis and Picea pungens which grew normally in the Inner Mongolian Academy of Forestry was observed by using the dry weighing method. The results showed that during the whole growing season, the rainfall in the forest to the surface of the soil did not exceed 40 cm. The water cut of the entire soil profile was kept within the field water holding capacity and the infiltration depth was below 200 cm. 0 ~ 200Cm depth, Pinus sylvestris, Pinus tabulaeformis and