Green-Ampt入渗模型国外研究进展
发布时间：2019-05-29 22:48
【摘要】：土壤水分入渗过程是土壤水分运移形式之一,对土壤养分和盐分运移及作物根系和微生物活性均有较大影响。目前描述土壤水分入渗过程的模型主要包括:Kostiakov模型、Philip模型、Green-Ampt模型等,Green-Ampt入渗模型表达式简单、涉及参数较少,具有一定的土壤物理基础,是当前使用最广的土壤水分入渗模型。国外关于GreenAmpt入渗模型研究很多,对Green-Ampt模型国外研究现状进行系统地总结。从Green-Ampt入渗模型的基本表达式出发,总结了该模型优缺点及涉及参数(饱和导水率Ks、湿润锋面吸力Sf、土壤水分入渗率i(t)等)的改进算法;综述了Green-Ampt入渗模型的国外应用现状;并对比分析了Kostiakov模型、Philip模型、Green-Ampt模型等,Green-Ampt入渗模型。基于Green-Ampt的国外研究现状,为国内该领域的研究指明方向。
[Abstract]:Soil water infiltration is one of the forms of soil water transport, which has great influence on soil nutrient and salt transport, crop root and microbial activities. At present, the models describing the process of soil moisture infiltration mainly include: Kostiakov model, Philip model, Green-Ampt model and so on. The expression of Green-Ampt infiltration model is simple, the parameters involved are few, and it has a certain soil physical basis. It is the most widely used soil moisture infiltration model at present. There are many studies on GreenAmpt infiltration model abroad, and the research status of Green-Ampt model abroad is systematically summarized. Based on the basic expression of Green-Ampt infiltration model, the advantages and disadvantages of the model and the improved algorithm involving parameters (saturated hydraulic conductivity Ks, wetting front suction Sf, soil moisture infiltration rate i (t), etc.) are summarized. The application status of Green-Ampt infiltration model abroad is reviewed, and Kostiakov model, Philip model, Green-Ampt model and Green-Ampt infiltration model are compared and analyzed. The research status of foreign countries based on Green-Ampt points out the direction of domestic research in this field.
【作者单位】： 安徽省水利水资源重点实验室;安徽省(水利部淮河水利委员会)水利科学研究院;西北农林科技大学水土保持研究所;
【基金】：安徽省水利科学研究院青年科技创新基金项目(ky201503)
【分类号】：S152.72
[Abstract]:Soil water infiltration is one of the forms of soil water transport, which has great influence on soil nutrient and salt transport, crop root and microbial activities. At present, the models describing the process of soil moisture infiltration mainly include: Kostiakov model, Philip model, Green-Ampt model and so on. The expression of Green-Ampt infiltration model is simple, the parameters involved are few, and it has a certain soil physical basis. It is the most widely used soil moisture infiltration model at present. There are many studies on GreenAmpt infiltration model abroad, and the research status of Green-Ampt model abroad is systematically summarized. Based on the basic expression of Green-Ampt infiltration model, the advantages and disadvantages of the model and the improved algorithm involving parameters (saturated hydraulic conductivity Ks, wetting front suction Sf, soil moisture infiltration rate i (t), etc.) are summarized. The application status of Green-Ampt infiltration model abroad is reviewed, and Kostiakov model, Philip model, Green-Ampt model and Green-Ampt infiltration model are compared and analyzed. The research status of foreign countries based on Green-Ampt points out the direction of domestic research in this field.
【作者单位】： 安徽省水利水资源重点实验室;安徽省(水利部淮河水利委员会)水利科学研究院;西北农林科技大学水土保持研究所;
【基金】：安徽省水利科学研究院青年科技创新基金项目(ky201503)
【分类号】：S152.72
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