Desiccation of deep soil layer and soil water cycle characteristics on the Loess Plateau
黄土区深层土壤干燥化与土壤水分循环特征

As the result of the excessive depletion of deep soil water by plants, the desiccation of the soil layer below the depth of rainfall infiltration(about 2 m) occurs widely in the Loess Plateau,particularly under artificial grassland and forestland,and thus influences the survival of the plants.However,the interactions between the development of the desiccation and water cycle in the soil layer have little understood.In the region,field investigations were carried out under grassland at a selected watershed i...