论文信息 - Time study and skidding capacity of the wheeled skidder Timberjack 450C in Caspian forests

Time study and skidding capacity of the wheeled skidder Timberjack 450C in Caspian forests

This study was carried out in a steep and difficult terrain. Trees were logged downhill to the landing by a wheeled skidder Timberjack 450C. Selection cutting was performed on a 66-hectare tract with an average slope of 30%. The elemental time study method was applied to develop the skidding time predicting model. In this study 43 working cycles were included. The skidding cycle time was mainly affected by skidding distance, winching distance and interac - tion between skidding distance and slope. The gross and net production rate was 20.51 and 22.93 m 3 /h, respectively. The unit cost considering the gross and net production rate was 6.31 and 6.22 USD/m 3 , respectively.

Baris Majnounian | M Namiranian | Farshad Keivan Behjou | J. Dvořák

[1] Chris B. LeDoux,et al. A comparison of small tractors for thinning central hardwoods , 1991 .

[2] Neil K. Huyler,et al. Cycle-time equation for the Koller K300 cable yarder operating on steep slopes in the Northeast , 1997 .

[3] Bryce J. Stokes,et al. Nondestructive evaluation for detection of honeycomb in the sawmill: an economic analysis , 1997 .

[4] Anton Sabo. Skidding of fir roundwood by Timberjack 240C from selective forests of Gorski Kotar , 2005 .

[5] Paulo Barreto,et al. Financial and ecological indicators of reduced impact logging performance in the eastern Amazon , 2002 .

[6] B. Stokes,et al. Felling and skidding productivity and harvesting cost in southern pine forests , 1996 .

[7] R. Kluender,et al. Manual felling time and productivity in southern forests , 1997 .

[8] J Dvorak. Analysis of forest stands damages caused by the usage of harvester technologies in mountain areas , 2005 .

[9] Edwin S. Miyata,et al. Determining fixed and operating costs of logging equipment. , 1980 .

[10] Andrew F. Howard. Modeling the Cost and Profitability of Timber Harvesting with Cable Skidders , 1987 .

[11] John E. Baumgras,et al. Ground skidding and harvested stand attributes in Appalachian hardwood stands in West Virginia , 2003 .

[12] W. Krueger. EFFECTS OF FUTURE CROP TREE FLAGGING AND SKID TRAIL PLANNING ON CONVENTIONAL DIAMETER-LIMIT LOGGING IN A BOLIVIAN TROPICAL FOREST , 2004 .