【摘要】：土壤水分入滲過程是土壤水分運移形式之一,對土壤養(yǎng)分和鹽分運移及作物根系和微生物活性均有較大影響。目前描述土壤水分入滲過程的模型主要包括:Kostiakov模型、Philip模型、Green-Ampt模型等,Green-Ampt入滲模型表達式簡單、涉及參數(shù)較少,具有一定的土壤物理基礎,是當前使用最廣的土壤水分入滲模型。國外關于GreenAmpt入滲模型研究很多,對Green-Ampt模型國外研究現(xiàn)狀進行系統(tǒng)地總結(jié)。從Green-Ampt入滲模型的基本表達式出發(fā),總結(jié)了該模型優(yōu)缺點及涉及參數(shù)(飽和導水率Ks、濕潤鋒面吸力Sf、土壤水分入滲率i(t)等)的改進算法;綜述了Green-Ampt入滲模型的國外應用現(xiàn)狀;并對比分析了Kostiakov模型、Philip模型、Green-Ampt模型等,Green-Ampt入滲模型�；贕reen-Ampt的國外研究現(xiàn)狀,為國內(nèi)該領域的研究指明方向。
[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.
【作者單位】： 安徽省水利水資源重點實驗室;安徽省(水利部淮河水利委員會)水利科學研究院;西北農(nóng)林科技大學水土保持研究所;
【基金】：安徽省水利科學研究院青年科技創(chuàng)新基金項目(ky201503)
【分類號】：S152.72

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