Study of Shrinkage and Swelling Phenomena in Clay Soils of Fanaye (Middle Senegal River Valley): Simulation of Water Transfers in a Soil Column

Fary Diome, Landing Biaye
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引用次数: 0

Abstract

Soil degradation due to shrinkage and swelling of these clay soils is a problem for agriculture. To understand the physical properties of the soils in this agricultural area, we will use an undisturbed soil monolith 60 cm high and 23 cm in diameter in the laboratory. This study quantified the swelling and shrinkage of these soils during a 10-month experiment. The determination of the hydrodynamic parameters of this monolith made it possible to simulate water transfers in a soil of constant volume and a water transfer in a soil of variable volume. The results of this simulation show significant differences between these two cases, hence the need to integrate the variations in soil volume into the simulation processes of water transfers.
法纳耶(塞内加尔中河流域)粘土收缩和膨胀现象的研究:土柱中水运移的模拟
由于这些粘土的收缩和膨胀导致的土壤退化是农业的一个问题。为了了解这个农业区土壤的物理性质,我们将在实验室中使用一个高60厘米、直径23厘米的未受干扰的土壤巨石。本研究在为期10个月的试验中量化了这些土壤的膨胀和收缩。该整体的水动力参数的确定使得模拟恒定体积土壤中的水转移和变体积土壤中的水转移成为可能。本模拟结果显示了这两种情况之间的显著差异,因此需要将土壤体积的变化纳入水转移的模拟过程中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
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