## 运动波沟灌数学模型

51

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Application-focused categoriesNatural-perspectiveLand regions

#### Model Description

Chinese {{currentDetailLanguage}} Chinese

（1）          运动波沟灌数学结构模型的定界方程组：

1

将谢才系数带入均匀流方程中得：

2

为便于计算，假设：

3

4

5

沟灌条件下的入渗是二维非饱和土壤水分运动。通常沟灌数学模型中均采用经验式表示。本模型中采用具有稳定入渗项的考式入渗式。

6

（2）          应用积分法数值求解：

内对连续方程（1）式积分：

7

8

很明显，上式反应了δt时段内δx区间的水量平衡关系式。对任一内单元LRJM，上式可写成：

9

10

11

路京选等：地面灌溉节水结束研究――沟灌水流运动的数值模拟及其应用。自然资源学报，1989,44

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#### How to Cite

《资源环境数学模型手册》 (2018). 运动波沟灌数学模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/4eebdb88-bc52-4118-ae3e-3e36a7ae7b6a

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#### Authorship

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