Abstract:
Infiltration is the process by which water penetrates the soil, most often through the surface. The Tabunio Watershed is one of the watersheds that plays an essential role in agriculture, plantations, industry, and the domestic interests of Tanah Laut Regency. Infiltration measurements were carried out on several land covers in the Tabunio watershed. This study aimed to calculate the infiltration rate on several different land covers in the Tabunio Watershed and calculate the infiltration volume in the Tabunio Watershed, South Kalimantan Province. Land cover interpreted visually using Sentinel-2 MSI Imagery. Each class of land cover resulting from visual interpretation was measured by infiltration rate and volume in the field using an infiltrometer. Horton's method is used in calculating the infiltration rate and volume. The highest infiltration rate was found in forest land cover with a value of 18.902 mm/hour, including a bit slower infiltration classification, while the lowest infiltration rate was in paddy fields with a value of 1.853 mm/hour. The highest infiltration volume founded in forest land cover with a value of 8.225 mm3 and the lowest infiltration volume was found in paddy fields with a value of 1.149 mm3.
