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关于山地薄层土壤地下水动态的研究是极其重要的问题。为此,在林业试验场北海道支场的羊丘实验林缓坡造林地挖6口水位观测井。从1981～84年观测高位地下水变化情况。本文报道了各观测井地下水的季节变化和降雨对地下水位上升高度的预测式。
Research on the dynamics of groundwater in thin layers of mountainous soil is an extremely important issue. To this end, Hokkaido Branch in Hokkaido forestry experiment forest slope slope afforestation dig 6 water level observation wells. Observed from 1981 to 1984 changes in high groundwater. This paper reports the seasonal variation of groundwater in each observation well and the prediction formula of rainfall on the rise of groundwater level.