TABEL VOLUME BATANG DI BAWAH PANGKAL TAJUK JENIS TENGKAWANG (Shorea macrophylla) DI PT GUNUNG GAJAH ABADI, KALIMANTAN TIMUR

Abstract

Clearbole Volume Table for tengkawang (Shorea macrophylla) at makes to help encrease estimate of volume of that species. It was based on 51 selected sample trees taken from the field. Five regression equation were used ti develop model based on diameter. The best model based on determinant coefficient (R 2 ), agregatif deviation (SA) and average deviation (SR). the result showed that the regression equations were use for of volume were Log V = -3.3545 + 2.2249 log d - 3.9328 (1/d) with standard error 0.1162, determinant coefficient (R ) 0.9727, agregatif deviation (SA) -1.54% and average deviation (SR) 3.26%.