Forest operation and forest-road networks design in multi-storied forest management in Peninsular Malaysia

Sawaguchi I., . (2000) Forest operation and forest-road networks design in multi-storied forest management in Peninsular Malaysia. [Proceedings Paper]

The Multi-storied Forest Management Project is practiced in Perak State Peninsular Malaysia as a part of Japan International Cooperation Association project. The purpose of this study was to promote the development of the multi-storied forests by establishing techniques for felling and hauling the upper-story tree Acacia mangium. Seventy months have passed since the planting of A.mangium upper-story trees which have grown 233 m3/ha in volume. S. leprosula thirty-five months after planting lower-story trees have reached 5.54m in height to basal diameter exceeds 100: 1 trees are strongly tapered To reduce damage to lower-story trees a backhoe and an agricutural tractor were added to the logging system. From the results of logging the damage ratio estimation of the lower-story trees was simulated by using the Monte Carlo method. The damage ratio differed considerably depending on planting patterns height of upper-story trees and felling skills. The results of this survey proved that the felling and hauling of upper-story trees would be technically feasible in the future except when one row upper-story trees and one row lower-story trees method were employed. The labor productivity was 2.36 m3/person-day in multi-storied plot 2.85 m3/person-day in a four-row plot and 3.86 m3/person-day in eight-row plot. The decrease in labor productivity for multi-storied forest management was caused by the difference in cutting row number. The presence of the lower-story tree did not affect productivity much. Felling delimbing and bucking costs were estimated at 12 US/m3 skidding costs at 7 US/m3 and transportation costs at 28 US/m3 on a whole. The results of the trial upper-story tree felling and hauling in the survey clearly proved that logging of the upper-story tree would be technically possible. The optimum forest road density in the multi-story forest area was estimated at 26.5 m/ha. This density is likely to change considerably depending on estimated maintenance and administrative costs. Therefore costs in the tropical area is a critical factor which will determine the level of any permanent forest road networks for sustainable forest management.

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Abstract

The Multi-storied Forest Management Project is practiced in Perak State Peninsular Malaysia as a part of Japan International Cooperation Association project. The purpose of this study was to promote the development of the multi-storied forests by establishing techniques for felling and hauling the upper-story tree Acacia mangium. Seventy months have passed since the planting of A.mangium upper-story trees which have grown 233 m3/ha in volume. S. leprosula thirty-five months after planting lower-story trees have reached 5.54m in height to basal diameter exceeds 100: 1 trees are strongly tapered To reduce damage to lower-story trees a backhoe and an agricutural tractor were added to the logging system. From the results of logging the damage ratio estimation of the lower-story trees was simulated by using the Monte Carlo method. The damage ratio differed considerably depending on planting patterns height of upper-story trees and felling skills. The results of this survey proved that the felling and hauling of upper-story trees would be technically feasible in the future except when one row upper-story trees and one row lower-story trees method were employed. The labor productivity was 2.36 m3/person-day in multi-storied plot 2.85 m3/person-day in a four-row plot and 3.86 m3/person-day in eight-row plot. The decrease in labor productivity for multi-storied forest management was caused by the difference in cutting row number. The presence of the lower-story tree did not affect productivity much. Felling delimbing and bucking costs were estimated at 12 US/m3 skidding costs at 7 US/m3 and transportation costs at 28 US/m3 on a whole. The results of the trial upper-story tree felling and hauling in the survey clearly proved that logging of the upper-story tree would be technically possible. The optimum forest road density in the multi-story forest area was estimated at 26.5 m/ha. This density is likely to change considerably depending on estimated maintenance and administrative costs. Therefore costs in the tropical area is a critical factor which will determine the level of any permanent forest road networks for sustainable forest management.

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Item Type:	Proceedings Paper
Additional Information:	Summary only En
AGROVOC Term:	FORESTRY OPERATIONS
AGROVOC Term:	FELLING
AGROVOC Term:	HAULING
AGROVOC Term:	ACACIA MANGIUM
AGROVOC Term:	FOREST MANAGEMENT
AGROVOC Term:	TECHNOLOGY
AGROVOC Term:	PENINSULAR MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/16566

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