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塔里木盆地绿洲农田土壤水盐运动动力学模式研究
Authors
姚德良
李新
Publication date
1 January 1998
Publisher
Abstract
采用了改进型Picard迭代差分法求解土壤水分运动的混合型Richards方程,避免了采用Picard迭代法求解h型Richards方程所出现的质量平衡误差问题.同时,采用迎风二次型插值差分法求解土壤盐分运移的对流扩散方程,避免了采用一般差分格式时所出现的数值弥散问题.最后,将上述动力学模型对塔里木盆地绿洲农田在灌既入渗条件下的土壤水盐运动过程进行了数值模拟,模拟结果与测量值吻合较好
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018