Optymalizacja zrywki drewna według kryterium minimalizacji pracy transportowej

• Autorzy: Jablonski K. , Stempski W.

Warianty tytułu

EN

Optimization of wood extraction from a clear-cut area according to the minimum transportation labour criterion

• Języki publikacji: PL

Abstrakty

EN

The objective of the study was to optimize wood extraction from a clear−cut area to several upper landings located at roads suited for wood haulage in a situation where the room for storing the wood was limited. The optimization process was to divide the clear−cut area into zones, from which the wood assortments should be transported to the different landings, so that the total transportation labour would be minimized. The research was conducted in Oborniki Forest District (western Poland) on a clear−cut area where the harvest of 2027 m3 of wood in four assortments was planned. The optimization method used presented a linear programming problem, which was formulated and solved with the Solver tool, available with a common spreadsheet. The clear−cut area was divided into a number of elementary plots, for which the quantities of the wood to be extracted and distances to the specified landings were determined. Altogether 189 such plots were defined, mostly square in shape and with 20 m long side. Three upper landings for each wood assortment, located at roads accessible to long−distance vehicles were also determined (fig. 1). The minimization of the transport labour needed for the extraction of different wood assortments was set as the criterion for the objective function. The results of the calculations, after putting them on the forest clear−cut area map (fig. 2), provided information about parts of the clear−cut area to which the wood should be extracted to. As it was expected, in the majority of cases, the model directed the wood to the landings, which were the closest, but in case of one assortment, the wood was directed to the landing located a bit further away than to the closest one. The model enabled to minimize the transportation labour spent on wood extraction from the clear−cut area. The calculations did not require any specific applications, enabling users of commonly available spreadsheets, equipped with a Solver tool to perform such calculations.

Słowa kluczowe

PL

lesnictwo; pozyskiwanie drewna; zrywka drewna; optymalizacja; prace transportowe; minimalizacja; programowanie liniowe

• Wydawca: -
• Czasopismo: Sylwan
• Rocznik: 2015
• Tom: 159
• Numer: 07
• Opis fizyczny: s.540-548,rys.,tab.,bibliogr.

Twórcy

autor

Jablonski K.

• Katedra Techniki Leśnej, Uniwersytet Przyrodniczy w Poznaniu, ul.Wojska Polskiego 71 c, 60-625 Poznań

autor

Stempski W.

• Katedra Techniki Leśnej, Uniwersytet Przyrodniczy w Poznaniu, ul.Wojska Polskiego 71 c, 60-625 Poznań

Bibliografia

• Chandrakantha L. 2012. Using excel solver in optimization problems. W: Proceedings of the Twenty−third Annual International Conference on Technology in Collegiate Mathematics. Pearson Education, Denver.
• Clark M., Meller R. D., McDonald T. 2000. A three heuristic for harvest scheduling with access road network development. Forest Science 46 (2): 204−218.
• Farnalskiy D. 2006. Applications of linear programming. Case study, minimizing the costs of transportation problem. Degree Thesis. International Business, Arcada. Manuskrypt.
• Frisk M., Göthe−Lundgren M., Jörnsten K., Rönnqvist M. 2010. Cost allocation in collaborative forest transportation. European Journal of Operational Research 205 (2): 448−458.
• Guzik B. [red.] 1999. Ekonometria i badania operacyjne. Uzupełnienia z badań operacyjnych. Wyd. Akademii Ekonom. w Poznaniu.
• Harrison S., Herbohn J., Mangaoang E., Vanclay J. 2002. Socio−economic Research Methods in Forestry: A Training Manual. Cooperative Research Centre for Tropical Rainforest Ecology and Management. Rainforest CRC, Cairns.
• Instrukcja bezpieczeństwa i higieny pracy przy wykonywaniu podstawowych prac z zakresu gospodarki leśnej 2012. ORWLP, Bedoń.
• Jabłoński K. 2006. Optymalizacja sposobów realizacji procesu technologicznego pozyskiwania i zrywki drewna na określonym obszarze leśnym. Wyd. AR im. A. Cieszkowskiego w Poznaniu. Rozprawy naukowe 378.
• Janeček A., Rutkowski K., Adamovsky R. 2006. Optymalizacja procesu zrywki drewna w aspekcie skażenia środowiska naturalnego. Inżynieria Rolnicza 6: 147−154.
• Kangas A., Kangas J., Kurttila M. 2008. Decision Support for Forest Management. Springer.
• Kłapeć B., Marszałkowicz T. 1979. Metody programowania optymalnego w leśnictwie. PWN, Warszawa.
• Reeb J., Leavengood S. 2002. Transportation problem: a special case for linear programming problems. Oregon State University Extension Service. https://ir.library.oregonstate.edu/xmlui/handle/1957/20201
• Trzaskalik T. 2008. Wprowadzenie do badań operacyjnych z komputerem. PWE, Warszawa.