【摘要】 以土壤水动力学原理为基础,对地下水浅埋区稻田土壤水分运动进行了田间试验和理论分析,并建立了地下水浅埋区稻田土壤水分运动数学模型。根据试验结果并参考有关资料确定土壤水分运动的有关参数,采用有限差分法对数学模型进行求解。结果表明,试验实测值和模拟值比较吻合,同时说明了所建模型的可靠性,对实际应用有重要的指导意义,具有一定的实用价值。更多还原

【Abstract】 Based on the theories of soil water dynamics, field trials and theoretical analyses had been carried through in this paper and the mathematical model was founded. According to the experiment result and other reference data, the parameters of soil water movement were established. The mathematical models were solved by finite difference method. The results of the trials showed that the data of numerical simulation of the models was in good agreement with the data of trials in the rice-field. The models were reliable and had practical values.更多还原