Abstract
Volume prediction al ;1 known precision IS essential especially for planners to makedccisions on torcst management. Thinning planning. harvesting. timber utilisation for ali<uch activities should he planned based on economical returns. to obtain maximum benefits(mill these 111;"1made forest pl.muuionx. Based on the dominant height growth variations.Illrc(' Teak /\llles were identified. ill each teak zone several teak trees were felled and truevolurncx (tot:1I Volume and the Timber Volume) were calculated and Volume Iunctionswere developed I'm each Teak zone, These volume functions were developed using meantrCl' gruW!1l measurements 01';1 st;IIHI. Therefore it is not to he used to dctcrm inc volumesIll' iudividual trccs hut to calculate the per hector volume 01 a stand by measuring the meanp.u.unctcr values of a sl:llId.The volume 01';1 felled tree was obtained by adding volume'S of its components. In the logvolume c.ttcuiauon thc "Hubcrx" equation was used. this equation gives reliable estimateslor ;iilY sli;IJ'" of jogs other than "ncloidic shape. The Diameter at Breast Height (DBH)dlHI the tlll;" hcil-'ht or Ihe tree was recorded before felling the tree. The models tested forh: Iter rill illg were:V =;, + h*DBH2 'I' Height (I)V :=; a + h*DBH2 * Height + c* Height (2)V = a"'DBH"*(Hcight)" 0)V =;\ + h*(DBH') * Height + C*(DBH) (4)In ;I11three zones the hest rilS obtained for volume estimation was model 3. This modelhas obtained high correlation in all three zones compared to other models tested.The volume functions obtained for mean free volume estimation in three Teak zones arc:Zone I: V = .O()OO!:I * (DBH)251111 "(Height ,72-1Zone 2: V = .000102 * (DBH)I.'>O(,' *(Height) .7'15Zonc S: V = .000102 * (DBH(8~~S *(Height) .81SProceedings oftlu: Fourth Annnal Forestry and Environment Symposium /99R of the Department ofForestry and
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