INFILTRASI PADA BERBAGAI TUTUPAN LAHAN DAS TABUNIO DAN MALUKA PROVINSI KALIMANTAN SELATAN

Abstract

Land cover can affect the physical properties of the soil related to the rate, capacity and volume of infiltration in a land. The purpose of this study was to determine the rate of infiltration and to analyze the volume and capacity of infiltration in various land covers to formulate and evaluate environmental vulnerability in the Tabunio and Maluka watersheds. The research activities were carried out in the Amparo Kecil watershed, the Tabunio watershed and the Bati Bati watershed, the Maluka watershed, South Kalimantan province. The main equipment used in this research are double ring infiltrometer, GPS (Global Positioning System), GIS (Geographic Information System) application to determine capacity and infiltration volume of each land unit. In the small Amparo watershed Tabunio watershed, it can be seen that environmental vulnerability is: a) The highest infiltration capacity was found in young secondary forest land, namely 334.92 mm/hour and the highest infiltration volume was found in old secondary forest land cover, namely 307.37 mm3, while the capacity and the lowest infiltration volume was found in shrub land cover, namely 49.12 mm/hour and 27.85 mm3. b) Environmental vulnerability to shrub land cover with an infiltration rate of 28.33 mm/hour, a capacity of 49.12 mm/hour and an infiltration volume of 27.85 mm3 .