Analysis of the infiltration capacity of natural soils, considering their compaction rate, slope, rainfall intensity and rainfall drop height using a rainfall simulator

Abstract

The present study examines the consequences of various factors on the infiltration capacity of natural soils employing a modified rainfall simulator. Parameters such as rainfall intensity, longitudinal and transverse slope angles, drop height, and soil density were assessed. The main objectives include soil characterization, infiltration tests, and data analysis to identify the impact of each variable. The study began with a state-of-the-art review, encompassing the historical use of infiltrometers and rainfall simulators, as well as previous research on surface runoff and infiltration. The methodology included soil selection, experimental design, calibrations, and sample preparation. Finally, the data were analyzed using the stepwise model, demonstrating that both rainfall intensity and soil density significantly affect infiltration capacity and water retention.