Kajian Laju Insfiltrasi Tanah pada Berbagai Penggunaan Lahan di Desa Tongkoh Kecamatan Dolat Rakyat Kabupaten Karo

Abstract

AHMAD EKA PUTRA : Study of infiltration soil rate in some lands using at Desa Tongkoh Kecamatan Dolat Rayat Kabupaten Karo, guide by Sumono and Nazif Ichwan. The aim of this research was to know infiltration rate in some lands using that are tomato field, avocado field, and pine forest at Desa Tongkoh Kecamatan Dolat Rayat Kabupaten Karo using Phiips equation model. Parameter that perceived were moisture content, soil texture, bulk density, particle density, porosity, and organical matter. This research used double ring infiltrometer that pressed into the soil, and filled with water. The decreased of water was observed with interval 0, 5, 10, 20, 30, 45, 60, 120, 180, 240 minutes. The results showed that the biggest infiltration was found in tomato field, and pine forest, the smallest was found in avocado field. Big influential factors to infiltration rate are soil texture, porosity and organical matter.