土壤水分入渗是指水分进入土壤的过程,在干旱半干旱地区的灌溉农业中有重大的意义。黄淮海平原碱化土壤是一种物理性质很差的土壤,水分往往难以渗入,大部份降雨以径流方式流失,土壤受侵蚀,且抗旱性差.因此,研究碱化土壤的水分与入渗状况,可为改良利用碱化土壤提供科学依据。一、试验区的概况和试验方法试验设在中国科学院黄淮海平原综合 Soil water infiltration refers to the process of water entering the soil and is of great significance in irrigated agriculture in arid and semi-arid areas. The alkalized soil in Huang-Huai-Hai Plain is a kind of soil with poor physical properties. Water is often difficult to infiltrate, most of the rainfall is lost by runoff, the soil is eroded and the drought resistance is poor. Therefore, , Which can provide a scientific basis for improving the utilization of alkalized soil. First, the test area overview and test methods The experiment is located in the Chinese Academy of Sciences Huang-Huai-Hai Plain integrated