通过分析地膜覆盖后土壤水分平衡的变化特点，建立了地膜覆盖前后农田土壤湿度变化的模拟方程。
The simulating models about the change of soil water content under plastic mulch were established by analysing the changes of soil water balance after mulching.
应用土壤水分实测数据对SWAP模型参数进行了率定，结果表明率定后的模型能够较好的反映出当地农田实际水分的动态变化过程。
The parameters in the SWAP were calibrated with the data of irrigation experiment The calibrated model represented preferably the field soil water movement.
为了揭示农牧交错地区不同农田耕作方式对其水分环境的影响过程及规律，选择翻耕地和免耕地两种土地耕作类型，分析不同耕作方式下土壤水分的时空变化情况。
In order to evaluate the effect of different tillage types on soil moisture, the paper analyses the temporal and spatial variations of soil moisture under plough tillage and no-tillage.
为了揭示农牧交错地区不同农田耕作方式对其水分环境的影响过程及规律，选择翻耕地和免耕地两种土地耕作类型，分析不同耕作方式下土壤水分的时空变化情况。
In order to evaluate the effect of different tillage types on soil moisture, the paper analyses the temporal and spatial variations of soil moisture under plough tillage and no-tillage.
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