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Articles

Productivity and Costs of Mechanized Skidding operations at Sao Hill Forest Plantation, Tanzania

ORCID Icon, &
Pages 91-103 | Received 09 Aug 2023, Accepted 20 Dec 2023, Published online: 28 Dec 2023

References

  • Ackerman, P., Belbo, H., Eliasson, L., de Jong, A., Lazdins, A., & Lyons, J. (2014). The Cost model for calculation of forest operations costs. International Journal of Forest Engineering, 25(1), 75–81. doi: 10.1080/14942119.2014.903711.
  • Ackerman, P., Martin, C., Brewer, J., & Ackerman, S. (2018). Effect of slope on productivity and cost of Eucalyptus pulpwood harvesting using single-grip purpose-built and excavator-based harvesters. International Journal of Forest Engineering, 29(2), 74–82. doi: 10.1080/14942119.2018.1431491.
  • Adebayo, A. B., Han, H.-S., & Leonard Johnson. (2007). Productivity and costs of Cut-to-length and whole tree harvesting in a mixed-conifer stand. Forest Products Journal, 57(6), 11.
  • Akay, A. E. (1998). Estimating machine rates and production for selected forest harvesting machines operating in the western united states and determining the most economical machine combinations under representative conditions in Turkey. Oregon State University.
  • Akay, A. E., Erdas, O., & Sessions, J. (2004). Determining Productivity of Mechanized Hravesting Machines. Journal of Applied Sciences, 4(1), 5. doi: 10.3923/jas.2004.100.105.
  • Bavaghar, M. P., Sobhani, H., Feghhi, J., Darvishsefat, A. A., & Marvi Mohajer, M. R. (2010). Comprehensive Productivity Models for Tracked and Wheeled Skidders in the Hyrcanian Forests of Iran. Research Journal of Forestry, 4(2), 8. doi: 10.3923/rjf.2010.65.71.
  • Behjou, F. K. (2018). Shape of skidder productivity function for ground based skidding system in Caspian forests. Forestry Research and Engineering: International Journal, 2(1), 19–22. doi: 10.15406/freij.2018.02.00020.
  • Bjorheden, R., & Thompson, M. a. (1995). An international nomenclature for forest work study. IUFRO 1995, 20th World Congress; S3:04 Subject Area, Misc. Rep., 190–215. http://www.treesearch.fs.fed.us/pubs/15500 access date: july 16, 2008
  • Borz, S. A., Dinulicǎ, F., Bîrda, M., Ignea, G., Ciobanu, V. D., & Popa, B. (2013). Time consumption and productivity of skidding Silver fir (Abies alba Mill.) round wood in reduced accessibility conditions: A case study in windthrow salvage logging form Romanian Carpathians. Annals of Forest Research, 56(2), 363–375.
  • Borz, S. A., Ignea, G., Popa, B., Iordache, E., & Spârchez, G. (2015). Estimating time consumption and productivity of roundwood skidding in group shelterwood system – a case study in a broadleaved mixed stand located in reduced accessibility conditions. Croatian Journal of Forest Engineering, 36(1), 137–146.
  • Çalişkan, E. (2019). Application of artificial neural networks and particle swarm optimization for timber extraction with cable crane. Applied Ecology and Environmental Research, 17(2), 2339–2355. doi: 10.15666/aeer/1702_23392355.
  • Conrad, J. L., Bolding, M. C., Aust, W. M., Smith, R. L., & Horcher, A. (2013). Harvesting productivity and costs when utilizing energywood from pine plantations of the southern Coastal Plain USA. Biomass and Bioenergy, 52, 85–95. doi: 10.1016/j.biombioe.2013.02.038.
  • Dodson, E. M., Deboodt, T., & Hudspeth, G. (2006). Production, cost, and soil compaction estimates for two western juniper extraction systems. Western Journal of Applied Forestry, 21(4), 185–194. doi: 10.1093/wjaf/21.4.185.
  • Ghaffariyan, M. R. (2020a). General productivity predicting model for skidder working in eucalypt plantations. European Journal of Forest Engineering, 6(1), 1–6. doi: 10.33904/ejfe.618344.
  • Ghaffariyan, M. R. (2020b). Reviewing productivity studies of skidders working in coniferous forests and plantations. Silva Balcanica, 21(2), 83–98. doi: 10.3897/silvabalcanica.21.e56071.
  • Gilanipoor, N., Najafi, A., & Alvaezin, S. M. H. (2012). Productivity and cost of farm tractor skidding. Journal of Forest Science, 58(1), 21–26. doi: 10.17221/4804-JFS.
  • Gölci, S., Böyöksakall, H., Ta, N., & Akay, A. E. (2018). Productivity Analysis of Timber Skidding Operation with Farm Tractor. European Journal of Forest Engineering, 4(1), 26–32. doi: 10.33904/ejfe.428397.
  • Hartsch, F., Kemmerer, J., Labelle, E. R., Jaeger, D., & Wagner, T. (2021). Integration of harvester production data in German wood supply chains: Legal, social and economic requirements. Forests, 12(4), 1–16. doi: 10.3390/f12040460.
  • Hiesl, P. (2013). Productivity Standards for Whole-Tree and Cut- To-Length Harvesting Systems in Maine. 167.
  • James, G., Witten, D., Tibshirani, R., & Hastie, T. (2013). An Introduction to Statistical Learning with Applications in R (Springer. (ed.)). Springer.
  • Jimmy, G., Seiler, R., & Maeder, U. (2013). Development and Validation of Energy Expenditure Prediction Models Based on GT3X Accelerometer Data in 5- to 9-Year-Old Children. Journal of Physical Activity and Healt, 10, 1057–1067. doi: 10.1123/jpah.10.7.1057.
  • Jiroušek, R., Klvač, R., & Skoupý, A. (2007). Productivity and costs of the mechanised cut-to-length wood harvesting system in clear-felling operations. Journal of Forest Science, 53(10), 476–482. doi: 10.17221/2088-JFS.
  • Jonsson, R., Rönnqvist, M., Flisberg, P., Jönsson, P., & Lindroos, O. (2023). Comparison of modeling approaches for evaluation of machine fleets in central Sweden forest operations. International Journal of Forest Engineering, 34(1), 42–53. doi: 10.1080/14942119.2022.2102346.
  • Klepac, J., & Mitchell, D. (2016). Comparison of Four Harvesting Systems in a Loblolly Pine Plantation. Professional Agricultural Workers Journal, 4(1), 14. http://tuspubs.tuskegee.edu/pawj/vol4/iss1/9
  • Kluender, R. A., & Stokes, B. J. (1996). Felling and Skidding Productivity and Harvesting Cost in Souttiet Pine Forest. Joint Conference Canadian Woodlands Forum: Canadian Pulp and Paper Association and International Union of Forest Research Organizations, 3423, 6.
  • Kopseak, H., Šušnjar, M., Bačić, M., Šporčić, M., & Pandur, Z. (2021). Skidders fuel consumption in two different working regions and types of forest management. Forests, 12(5). doi: 10.3390/f12050547.
  • Korkmaz, S., Goksuluk, D., & Zararsiz, G. (2014). MVN: An R package for assessing multivariate normality. R Journal, 6(2), 151–162. doi: 10.32614/RJ-2014-031.
  • Kulak, D., Stańczykiewicz, A., & Szewczyk, G. (2017). Productivity and time consumption of timber extraction with a grapple skidder in selected pine stands. Croatian Journal of Forest Engineering, 38(1), 55–63.
  • Lindsey, J. K. (1998). Applying Generalized Linear Models. In Technometrics (Vol. 40, Issue 2). Springer. doi: 10.2307/1270654.
  • Liski, E., Jounela, P., Korpunen, H., Sosa, A., Lindroos, O., & Jylhä, P. (2020). Modeling the productivity of mechanized CTL harvesting with statistical machine learning methods. International Journal of Forest Engineering, 31(3), 253–262. doi: 10.1080/14942119.2020.1820750.
  • Long, C. R. (2003). Production and cost analysis of two harvesting systems in central Appalachia,West Virginia University. https://researchrepository.wvu.edu/etd/1327/
  • Magagnotti, N., Kanzian, C., Schulmeyer, F., & Spinelli, R. (2013). A new guide for work studies in forestry. International Journal of Forest Engineering, 24(3), 249–253. doi: 10.1080/14942119.2013.856613.
  • Malimbwi, R. E., Mugasha, W. A., & Mauya, E. (2016). Pinus Patula Yield Tables for Sao Hill Forest Plantations, Tanzania. Department of Forest Mensuration and Management.Sokoine University of Agriculture, Morogoro.
  • Mauya, E. W. (2022). Production Rates of Mechanized Tree Felling Operations at Sao-Hill Forest Plantation, Tanzania. Tanzania Journal of Forestry and Nature Conservation, Vol 91(No. 1), 45–57.
  • Mauya, E. W., Kweka, A. E., Migunga, G. A., & Silayo, D. A. (2011). Productivity and cost analysis of grapple skidder at Sao Hill Forest Plantations, Tanzania. Tanzania Journal of Forestry and Nature Conservation, 81(1), 10–19.
  • Miyajima, R. H., Fenner, P. T., Batistela, G. C., & Simões, D. (2021a). Effect of feller-buncher model, slope class and cutting area on the productivity and costs of whole tree harvesting in Brazilian eucalyptus stands. Juornal of Forests, 12(8), 14. doi: 10.3390/f12081092.
  • Miyajima, R. H., Fenner, P. T., Batistela, G. C., & Simões, D. (2021b). Effect of feller-buncher model, slope class and cutting area on the productivity and costs of whole tree harvesting in Brazilian eucalyptus stands. Forests, 12(8). doi: 10.3390/f12081092.
  • Mizaras, S., Sadauskiene, L., & Mizaraite, D. (2008). Productivity of harvesting machines and costs of mechanized wood harvesting: Lithuanian case study. Baltic Forestry, 14(2), 155–162.
  • MNRT (Ministry of Natural Resource and Tourism). (2018). Sao Hill Division 1 (Irundi) Forest Plantation management plan (2018/19-2022/23) (Vol. 1). Tanzania Forest Services, Ministry of Natural Resources and Tourism, Dodoma, Tanzania. 108pp.
  • Munis, R. A., Almeida, R. O., Camargo, D. A., Barbosa, R., Wojciechowski, J., & Sim, D. (2023). Tactical Forwarder Planning : A Data-Driven Approach for Timber Forwarding. Forests, 14(1782), 11. doi: 10.3390/f14091782.
  • Murphy, G. E. (2005). Determining sample size for harvesting cost estimation. New Zealand Journal of Forestry Science, 35(2/3), 166–169.
  • Nelder, A. J. A., & Wedderburn, R. W. M. (1972). Generalized Linear Models. Journal of the Royal Statistical Society, 135(3), 370–384. doi: 10.2307/2344614.
  • Ngulube, E., Brink, M., & Chirwa, P. W. (2014). Productivity and cost analysis of semi-mechanised and mechanised systems on the Viphya forest plantations in Malawi. Southern Forests, 76(4), 195–200. doi: 10.2989/20702620.2014.938294.
  • Ngulube, E. S. (2012). Prediction of timber harvesting productivity for semi-mechanised systems in Viphya forest plantations, Malawi. MSc. Dissertation, University of Pretoria-South Africa. https://repository.up.ac.za/handle/2263/30939
  • Nwokoye, E. S., & Ilechukwu, N. (2018). Theory Of Costs. Principles of Economics 1, August, 144–184. https://www.researchgate.net/publication/326841533
  • Obi, O. F., & Visser, R. (2020). Productivity measurement of New Zealand forest harvesting sector using the DEA-Malmquist index. International Journal of Forest Engineering, 31(3), 224–232. doi: 10.1080/14942119.2020.1770566.
  • Orlovský, L., Messingerová, V., & Danihelová, Z. (2020). Analysis of the time efficiency of skidding technology based on the skidders. Central European Forestry Journal, 66(3), 177–187. doi: 10.2478/forj-2020-0016.
  • Parajuli, M., Hiesl, P., Smidt, M., & Mitchell, D. (2020). Factors influencing productivity and cost in the whole-tree harvesting system. Clemson Cooperative Extension, Land-Grant Press by Clemson Extension, 1079, 1–8.
  • Proto, A. R., Macrì, G., Visser, R., Harrill, H., Russo, D., & Zimbalatti, G. (2018). Factors affecting forwarder productivity. European Journal of Forest Research, 137(2), 143–151. doi: 10.1007/s10342-017-1088-6.
  • Ravindra, K., Rattan, P., Mor, S., & Aggarwal, A. N. (2019). Generalized additive models: Building evidence of air pollution, climate change and human health. Environment International, 132(March), 104987. doi: 10.1016/j.envint.2019.104987.
  • Sabo, A., & Poršinsky, T. (2005). Skidding of fir roundwood by Timberjack 240C from selective forests of Gorski Kotar. Croatian Journal of Forest Engineering, 26(1), 13–27.
  • Sessions, J. (2007). Forest Road Operations in the tropics (H. D. Dr. Dieter Czeschlik (ed.)). Springer-Verlag is a part of Springer Science + Business Media.
  • Shabani, S., Jaafari, A., & Bettinger, P. (2021). Spatial modeling of forest stand susceptibility to logging operations. Environmental Impact Assessment Review, 89(May), 106601. doi: 10.1016/j.eiar.2021.106601.
  • Spinelli, R., Eliasson, L., & Han, H. S. (2020). A Critical Review of Comminution Technology and Operational Logistics of Wood Chips. Current Forestry Reports, 6(3), 210–219. doi: 10.1007/s40725-020-00120-9.
  • Spinelli, R., Hartsough, B. R., Owende, P. M. O., & Ward, S. M. (2002). Productivity and Cost of Mechanized Whole-Tree Harvesting of Fast-Growing Eucalypt Stands. International Journal of Forest Engineering, 13(2), 49–60. doi: 10.1080/14942119.2002.10702462.
  • Spinelli, R., Visser, R., & Han, H. S. (2019). A decade of forest engineering: Achievements and future directions. Forests, 10(9), 1–12. doi: 10.3390/f10090724.
  • Šporčić, M., Landekić, M., Šušnjar, M., Pandur, Z., Bačić, M., & Mijoč, D. (2023). Deliberations of Forestry Workers on Current Challenges and Future Perspectives on Their Profession—A Case Study from Bosnia and Herzegovina. Forests, 14(4), 18. doi: 10.3390/f14040817.
  • Stoilov, S., Angelov, G., Aladzhov, S., & Nichev, P. (2021). Productivity models and costs of combined skidder - Harvester in coniferous forests. Forestry Ideas, 27(1), 169–181.
  • Varch, T., Erber, G., Spinelli, R., Magagnotti, N., & Stampfer, K. (2021). Productivity, fuel consumption and cost in whole tree cable yarding: conventional diesel carriage versus electrical energy-recuperating carriage. International Journal of Forest Engineering, 32(S1), 20–30. doi: 10.1080/14942119.2020.1848178.
  • Visser, R., & Stampfer, K. (2003). Tree-length system evaluation of second thinning in a loblolly pine plantation. Southern Journal of Applied Forestry, 27(2), 77–82. doi: 10.1093/sjaf/27.2.77.
  • Vitorelo, B. (2011). Cost and Productivity of Two Mechanical Fire Hazard Reduction methods: mastication and thinning. Faculty of Humboldt State University.
  • Wang, J., LeDoux, C. B., & Li, Y. (2005). Simulating Cut-to-Length Harvesting Operations in Appalachian Hardwoods. International Journal of Forest Engineering, 16(2), 11–27. doi: 10.1080/14942119.2005.10702510.
  • Wang, J., Long, C., McNeel, J., & Baumgras, J. (2004). Productivity and cost of manual felling and cable skidding in central Appalachian hardwood forests. Forest Products Journal, 54(12), 45–51.
  • Yap, B. W., & Sim, C. H. (2011). Journal of Statistical Computation and Comparisons of various types of normality tests. Journal of Statistical Computation and Simulation, 81(12), 37–41. doi: 10.1080/00949655.2010.52016.
  • Zhang, X., Wang, J., Vance, J., Wang, Y., Wu, J., & Hartley, D. (2020). Data Analytics for Enhancement of Forest and Biomass Supply Chain Management. In Forest Engineering. Springer.