The ratio of lateral seepage depend on the length of wet to dry boundary, the area of flooded paddy field, and the different initial water content in floodedldry farm soils.

• 模拟结果亦显示乾田时期之水田因田面乾裂，致牛踏层遭受破坏，且入渗压力水头增加，造成入渗率之大幅提升。