SIFAT TANAH PADA AREAL APLIKASI TEBANG PILIH TANAM JALUR ( TPTJ) DI PT. INTRACAWOOD, BULUNGAN, KALIMANTAN TIMUR

Abstract

One alternative to improve the productivity of logged-over forests is to implement a system of forest management based on sustainability forest and environment, such as Selective Cutting and Line Planting (SCLP) System. Intensive exploitation of natural forests will affect the environment, especially the soil. Therefore, it is necessary to study the physical and chemical properties of soil in the forest areas that apply SCLP system. Soil sampling was conducted in three land use, antara lines, planting lines and skid trails. There are 2 types of soil sample taken, namely undisturbed soil samples for determination of soil physical properties and disturbed soil samples for determination of soil chemical properties. The results showed that soil texture of antara lines and skid trails were clay and planting lines were sandy clay loam. Bulk density (BD) of antara lines ranged from 0,51 to 0,66 g/cm 3 and planting lines ranged from 0.65 to 0.69 g/cm 3 , whereas the BD of skid trails ranged from 0.91 to 0.92 g/cm 3. Total soil pore of antara lines ranged from 74,62 to 80,42 %, planting lines ranged from 73.04 to 74,71 % and total pore of skid trails ranged from 64.13 to 64.63%. Soil pH in three land use is very acid. The highest nutrient was found in plant lines.