J. Bio. Env. Sci.3(9), 90-97, September 2013
Tree cutting is the most important component that affects all stages of harvesting. Tree cutting is included felling, cross-cutting (bucking), delimbing and topping. This study was carried out in the northern forests of Iran (i.e. Hyrcanian Forests) near the Caspian Sea in the Neka Chob Company, in order to evaluate subsections of tree felling. The main goals of this study are time study of tree felling, estimating and measuring productivity and costs of chainsaw as well as identifying regression model of tree felling time. Multivariate Regression of felling time was a function of tree diameter, distance among felling trees and air temperature. Hourly production of chainsaw felling was 44.61 m3/h (8 trees per hour). There was found a negative relationship between tree diameter and the Tree felling cost of production unit, so that when the tree diameter was increased the cost of Tree felling was being decreasing exponentially.
Bjorheden R, Thompson M.A. 1995. An International Nomenclature for Forest Work Study. Paper presented at the XX IUFRO World Congress, Tampere, 6-12 August 1995. Manuscript. 16 p.
Dykstra D.P, Heinrich R. 1996. FAO model code of forest harvesting practice. FAO. Rome, 97p.
International Labour Office (ILO). 1998. Safety and health in forestry work. Geneva. Italy, 116p.
Jourgholami M, Majnounian B, Eghtesadi A. 2012. Traditional Wood Processing (Lumber) Method in Forest; Production, Costs and Value Loss (Case Study: Namkhaneh District). Journal of Wood Forest Science and Technology 18(4), 111 – 129.
Li Y, Wang J, Miller G, McNeel J. 2006. Production economics of harvesting small-diameter hardwood stands in central Appalachia. Forest Production Journal 56(3), 81-86.
Lortz D, Kluender R, McCoy W, Stokes B, Klepac J. 1997. Manual felling time and productivity in southern forests. Forest Product Journal 47, 10. 59-63.
Lotfalian M. 2012. Looging. Tehran Aeeizh Press, 488p.
Majnounian B, Jourgholami M, Zobeiri M, Feghhi J, Fathi J. 2009. Production and Costs of Tree Limbing Operation Using Chainsaw (Case Study: Namkhaneh District in Kheyrud Forest). Journal of Wood & Forest Science and Technology 16(4), 43 – 57.
Nikooy M. 2007. Optimizing Production Cost and Damage Reduction to Wood, Trees and Forest by Harvest Planning (Case Study: Asalem Forest District area). Ph.D. Thesis. Natural Resurces Faculty. Tehran University. 215 p.
Nurminen T, Korpunen H, Uusitalo J. 2006. Time consumption analyses of the mechanized cut-to-length harvesting system. Silva Fennica 40(2), 335-363.
Pearce Jk, Stenzel. 1972. Logging and Pulpwood Production, the Ronald Press Co., New York, 453 p.
Rizvandi V, Jourgholami M. 2012. Production and cost comparison of conventional and directional tree felling (Case study: in Kheyrud forest). Iranian Journal of Forest 4(1), 1-11.
Rummer R, Klepac J. 2002. Mechanized or hand operations: which is less expensive for small timber? P56-62. In: Proceedings from conference held February 25-27, 2002 in Spokane, Washington. Compiled and edited by Baumgartner, D.M., Johnson, L.R., and DePuit EJ. Washington State University Cooperative Extension. Washington. USA.
Sarikhani N. 2001. Forest Utilization. University of Tehran Press. No. 2099, Second Edition, 776p.
Sessions J, Boston K, Murphy G, Wing M G, Kellogg L, Pilkerton S, Zweede J C, Heinrich R. 2007. Harvesting operation in the Tropics. Springer-Verlag, Berlin, Heidelberg, 170p.
Wang J, Long C, McNeel J, Baumgras J. 2004. Productivity and cost of manual felling and cable skidding in central Appalachain hardwood forests. Forest Product Journal. 54, 12. 45-51.35400012118197.0060