Study of Coupled Soil Moisture and Heat Flow Equation

LIU Zhen-hua; ZHAO Ying-shi

您当前的位置：

首页 >

文章列表页 >

Study of Coupled Soil Moisture and Heat Flow Equation

- Study of Coupled Soil Moisture and Heat Flow Equation
- Bulletin of Soiland Water Conservation Vol. 26, Issue 5, Pages: 83-88(2007)
- 作者机构：
  
  1. 华南农业大学信息学院,广东,广州,510642
  2. 中国科学院研究生院,北京,100039
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
移动端阅览
LIU Zhen-hua, ZHAO Ying-shi. Study of Coupled Soil Moisture and Heat Flow Equation[J]. Bulletin of Soiland Water Conservation, 2007, 26(5): 83-88.
DOI：

LIU Zhen-hua, ZHAO Ying-shi. Study of Coupled Soil Moisture and Heat Flow Equation[J]. Bulletin of Soiland Water Conservation, 2007, 26(5): 83-88. DOI：

摘要

将二维有限元方法和遗传算法结合起来

求解土壤水热耦合方程

获取土壤含水量数据。通过遗传算法来反演水热耦合边界条件

再应用二维有限元方法来正演土壤水热耦合方程

并以遥感数据作为方程的初始条件

实现对土壤水分的时空监测。通过使用内蒙西部研究区的土壤温度和土壤水分数据对此模型进行模拟和检验

结果表明此方法是合理的

应用效果令人满意。

Abstract

In order to improve inversion accuracy for soil moisture and enhance the research on quantitative soil moisture

a method combining finite element with Genetic Algorithms is proposed. Affected by precipita-tion

irrigation

wind speed

and so on

there exist complex material and energy exchanges on the interface of atmosphere and soil

which lead to very complex boundary conditions of coupled moisture and heat flow equation. Then

Genetic Algorithms are applied to calculating the boundary conditions of the equation. Sur-face initial condition of the equation is obtained by remote sensing technique. Finally

the finite element method is applied to solving the equation. Thus

monitoring of soil moisture is fulfilled. The tested results show that the method is feasible and satisfactory by comparing with observed data of soil temperature and soil moisture.

关键词

Keywords

references

Views

1107

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Different Mulching Patterns on Soil Hydrothermal Characteristics and Wheat Yield

Effects of Paspalum wettsteinii plantation on surface soil water and heat dynamics in stabilized Benggang collapsing gully walls

Effects of Water Stress on Photosynthetic Characteristics of Six Sorts of Seedlings

Effects of Eco-mat on Soil Temperature of Sand Dunes

Variation of Soil Moisture in Arid and Semi-arid Areas Under Different Vegetations and the Ways of Ecological Construction

Related Author

WANG Ping

GUO Xiaojun

ZHANG Lijuan

WANG Guoyu

WEI Long

HU Janping

Wang Lei

Yang Maojin

Related Institution

Qingyang Academy of Agricultural Sciences

Lanzhou Agro-technical Research and Popularization Center

Forestry Workstation of Hetian Town， Changting County

College of Resources and Environment， Fujian Agriculture and Forestry University

Dabodan Nature Savin Reserve,Shenmu

⁰