Economic and technical evaluation of ground skidding in the logs exploitation system with Timber Jack and Clark Ranger

Subject Areas : JUNGLE

farshad keivanbehjo ¹ (University of Mohaghegh Ardabili, Ardabil, I.R. Iran.)
zeynab poorgholi ² (, University of Mohaghegh Ardabili, Ardabil, I.R. Iran.)

Received: 2017-06-26 Accepted : 2017-12-04 Published : 2017-11-22

Keywords: ground skidding, Timber Jack 450C, Clark Ranger 666 BDS, production rate, unit cost rate,

Abstract :

The purpose of this research is to evaluate the economic (production and cost) and technical (limitations) of current exploitation is to provide suggestions for increasing productivity and reducing forest exploitation costs. This study was carried out in parcel 237 of Chafroud, Shanderman watershed. For this purpose, the study of production and cost in the method of skidding system logs using two machines Timber Jack 450C and Clark Ranger 666 BDS was performed. The results of time studies and regression analysis indicate that each turning time of skidding with Timber Jack 450C have the greatest effect on the distance from the skidding distance, winching distance and interaction between skidding distance and skid slope, while each boat time using Clark Ranger 666 the greatest effect is from the interaction between skidding distance and loading volume, the interaction between the skidding distance and the slope of the skid trail and the slope of the winch. The study of the production rate of the two machines showed that the production rate of the Timber jack 450C and Clark Ranger 666 BDS were 22.93m³ and 19.29m³ per hour, respectively. The results of statistical comparisons of production rates and production unit costs in two machines show that there is a significant difference between the two machines (p = 0.04, p = 0.03). In addition, the results of a technical review of two machines suggest that the Timber jack 450C is more efficient than the Clark Ranger 666.

References:

References:

1. Behjou, F.K., B. Majnounian, M. Namiranian, & J. Dvorak, 2008. Time study and skidding capacity of the wheeled skidder Timberjack 450c in Caspian forests. Journal of forest science, 4: 183-188.


2. Behjou, F.K., B. Majnounian, M. Namiranian, J. Feghhi, & A. Saeed, 2016. Estimation of production and logging costs in Shafaroud logging company. Iranian Journal of Natural Resources, 69(3): 473-484.


3. Durst, P.B., C. Brown, & T. Enters, 2003. Development and implementation of national codes of practice for forest harvesting in Asian and the Pacific, International expert meeting, Chiba Prefecture, Japan, 11p.


4. Gilanipoor, N. & H. Arya, 2014. Economic Evaluation LTT-100A skidding system in upward. Journal of NATURAL ECOSYSTEMS OF IRAN, 5(1): 75-84.


5. Gilanipoor, N., A. Najafi, & S.M. Heshmat vaezin, 2011. Models and production costs steel track skidder in downward skidding (Case Study: Forest Education – Research Tarbiat Modares University). Journal of forest Iran. 4(3): 2011.


6. Heinimann, H.R., 2007. Forest operation engineering and management – the ways behind and ahead of a scientific discipline. Croatian Journal of Forest Engineering, 28(1): 107-121.


7. Heshmatol Vaezin, S.M., 2006. Modèles économiques de gestion des peuplements réguliers, irréguliers ou en transition; illustrations dans le cas du hêtre dans le nord-est de la France. Thèse de doctorat, Ecole National du Génie Rural des Eaux et des Forêt (ENGREF), AgroParisTech, 337p.


8. Jour Gholami, M., & B. Majnounian, 2008. Productivity and cost of wheeled skidder in Hyrcanian forest. International journal of natural and engineering sciences 2(3): 99-103.


9. Lilienau, B.L., 2003. Residual Stand Damage Caused by mechanized harvesting Systems, proceedings of the Austrio meeting, Austria, 11p.


10. Majnounian, B. 1988. Conditional Study and mechanization level of logging operation in Iran. Iranian Journal of Natural Resources Vol. 42(1) 9pp.


11. Nikooy, M. 2007. Optimizing production costs and reducing logging damages to wood, tree and forest. Ph.D. thesis. Faculty of Natural Resources, University of Tehran, pp. 187.


12. Ruger, N., A.G. Gutierrez, D.W. Kissling, J.J. Armesto, & A. Huth, 2007. Ecological impacts of different harvesting scenarios for temperate evergreen rain forest in southern Chile—A simulation experiment. Forest Ecology and Management, 252: 52-66.


13. Senturk,N., Ozturk,T., & M.Demir, 2007. Productivity and costs in the course of timber transportation with the Koller K300 cable system in Turkey. Building and Environment, 42: 2107-2113.


14. Spinelli, R. & B.R. Hartsough, 2001. Extracting whole short rotation trees with a skidder and a front-end loader. Biomass and Bioenrgy, 21: 425-431.


15. Tiernan, D., G. Zeleke, P.M.O. Owende, C. L. Kanali, J. Lyons, & S.M. Ward, 2004. Effect of Working Conditions on Forwarder Productivity in Cut-to-length Timber Harvesting on Sensitive Forest Sites in Ireland. Biosystem engineering, 87(2): 167-177.


16. Wang, J., C.  Long, & J. McNeel, 2004. Productivity and cost analysis of a feller-buncher and grapple skidder in central Appalachian hardwood forests. Forest product journal, 54(12): 159.


17. Wing, M.G., E.D. Coulter, & J.Sessions, 2001.The international mountain logging and 11^th Pacific northwest skyline sysmposium , pp. 56-60


18. Zhou, M., J. Liang, & J. Buongiorno, 2008. Adaptive versus fixed policies for economic and ecological objectives in forest management, Forest ecology and management, 254: 178-187.