Abstract
In order to study the influence of the initial moisture content on the parameters of the infiltration model using an indoor soil column test method, and the relationship between the initial moisture content and each model parameter was analyzed by using the Green-Ampt model, the Kostiakov model, and the Horton model. The results show that there is a certain relationship between the initial water content and the parameters of the infiltration model. Based on comprehensive considerations, the Kostiakov model is the best surface irrigation infiltration model, and the Kostiakov model has the best effect when the observation time is not less than 80 minutes to simulate the soil infiltration process.
Highlights
The process of soil infiltration determines the amount of precipitation or irrigation water entering the soil, which is related to the amount of water supplied to the crop in the current season, and to the amount of deep water used by the crop after water supply
This article aims to analyze the effects of soils with different initial moisture content on infiltration model parameters for indoor soil column tests under changes in initial moisture content and cumulative water content
We can clearly find that the initial water content has similar effects on the infiltration rate and cumulative infiltration process
Summary
The process of soil infiltration determines the amount of precipitation or irrigation water entering the soil, which is related to the amount of water supplied to the crop in the current season, and to the amount of deep water used by the crop after water supply. The study of soil infiltration characteristics is of great significance in agricultural science and tehnology. Soil infiltration is affected by factors such as initial soil moisture content, soil texture, and water depth. This article aims to analyze the effects of soils with different initial moisture content on infiltration model parameters for indoor soil column tests under changes in initial moisture content and cumulative water content. The purpose is to prove the qualitative relationship between the initial moisture content and the parameters of each infiltration model
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