Pemanfaatan SIG dalam pemetaan penyebaran potensi hutan berbasis IHMB di IUPHHK-HA PT. Ratah Timber, Kalimantan Timur
Abstract
Comprehensive Periodic Forest Inventory (IHMB) is a ten-year periodic forest inventory for establishing business plan of forest utilization, which had to be done by Business Utilization Timber Forest Product in Natural Forest (IUPHHK-HA) and Plantation Forest (IUPHHK-HT) permit holders based on Government Regulation No. 6 of 2007. PT. Ratah Timber as a business license holder of Business Utilization Timber Forest Product in Natural Forest (IUPHHK-HA) requires preceding IHMB for establishing Ten-Years Natural Forest Business Plan for Timber Forest Product Utilization. IHMB with sampling concept reducing data measurement area to small certain surveyed area. Spatial distribution of timber potential from overall IHMB area, which in some compartment is not represented, may be estimated using spatial interpolation using GIS from data that obtained in survey plots. This research intend to estimate forest standing stock, establishing map of timber volume and tree profile, and analyzing forest timber potential in PT. Ratah Timber, East Kalimantan. IHMB tabular data processing shows that more that 60% of standing stock in PT. Ratah Timber belongs to Kayu Meranti (KM) class in all trees growing class (pole, small trees and large trees). Largest tree density is available at pole class by 206 poles/ha, meanwhile largest volume is available at large tree class by 146,73 m3/ha and overall standing quality is considered good based on its tree quality. IHMB spatial data distribution shows that PT. Ratah Timber has the largest area or compartments in lowest class potential. Spatial distribution map for large trees inform that largest compartment aggregated at 0-24 N/ha and 0-146.6 m3/ha in density and volume distribution classes. Potential analysis and tree spatial distribution overlay for 50 cm up commercial tree diameter shows normal standing structure condition, in spite of its potential condition was not too high, about 79,8% of PT. Ratah Timber area only having 0-28 trees/ha tree density with 0-279,6 m3/ha standing volume.
Collections
- UT - Forest Management [3059]