Abstract
Abstract
Changes in Land Use that result in increased direct surface runoff due to reduced places for rainwater absorption. The amount of water absorption into the soil or infiltration can be included in the flood calculations to design and plan water structures. Beka Village is in Sigi Regency, Central Sulawesi Province. This research aims to determine the magnitude of the infiltration rate that occurs in Beka Village and examine the soil’s physical properties that are related to the infiltration rate. This research was carried out on three types of land cover, namely mixed field land, forest, and settlement areas, each taken under two conditions, namely dry conditions and conditions after rain. Infiltration measurements were carried out using a Double Ring Infiltrometer measuring instrument and analyzed using the Horton equation. Undisturbed soil samples were taken at each land cover and condition using paralon pipes to determine the physical properties of the soil. The rate of infiltration in the three land covers with each condition is that for dry soil conditions on forest land, it is in the relatively fast category (6.3 - 12.7 cm/hour); in the mixed field and settlement areas it is in the medium category (2 - 6.3 cm/hour). Meanwhile, wet soil conditions in forest land and mixed field fall into the medium criteria (2 - 6.3 cm/hour), and in settlement areas fall into the slow criteria (0.5 - 2 cm/hour).