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采用压力仪和盘式入渗仪测定了紫鹊界梯田区域不同土地利用类型土壤的水分入渗特征并应用多种计算理论推算其水分运移参数。结果表明,林地和退耕地土壤持水能力比旱田和水田强,在相同吸力条件下林地和退耕地的含水率平均比旱田和水田分别高28%和55%;不同土地利用类型对土壤水分累积入渗量、土壤吸渗率和导水率有着较大的影响,其值均按照林地、退耕地、水田、旱地的顺序依次增大;研究结果初步揭示了紫鹊界土地利用类型对梯田区土壤水分运移机理影响。
The infiltration characteristics of soils in different land use types in Zijiejie terraced area were measured by pressure meter and disc infiltrometer, and the water migration parameters were calculated by various calculation theories. The results showed that the water holding capacity of forestland and abandoned farmland was stronger than that of dryland and paddy field, and the average water content of forestland and abandoned farmland was 28% and 55% respectively higher than that of dryland and paddy field under the same suction conditions. Soil water accumulation Infiltration rate, soil water infiltration rate and permeability have a greater impact, the value of all in accordance with the order of forest land, farmland, paddy fields, dry land in order of increase; The results revealed that the magpie land use types of terraced fields Soil moisture transport mechanism.