畦灌施肥地表水流与非饱和土壤水流-溶质运移集成模拟:Ⅰ模型

被引:10
作者
李志新 [1 ,2 ]
许迪 [1 ,2 ]
李益农 [1 ,2 ]
章少辉 [1 ,2 ]
机构
[1] 中国水利水电科学研究院水利研究所
[2] 国家节水灌溉北京工程技术研究中心
关键词
畦灌施肥; 溶质运移; 集成模拟; 非饱和土壤; 地表水流;
D O I
10.13243/j.cnki.slxb.2009.06.018
中图分类号
S275.3 [地面灌];
学科分类号
0815 ; 082802 ;
摘要
本文基于零惯性量方程和一维对流-弥散方程建立起畦灌溉施肥地表水流溶质运移模型,并利用HYDRUS-2D软件模拟二维非饱和土壤水流溶质运移过程,以一维地表水流溶质运移模拟得到的通量条件作为二维非饱和土壤水流溶质运移模拟的上边界,利用编制的程序将两个模型进行集成,构建起畦灌施肥地表与非饱和土壤水流溶质运移集成模型。基于多时段分步迭代计算方法,实现沿畦长地表入渗溶质通量动态变化条件下的二维非饱和土壤水流溶质运移模拟。
引用
收藏
页码:673 / 678+687 +687
页数:7
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