Floresta e Ambiente
Floresta e Ambiente
Original Article Forest Management

Productivity and costs of harvester cutting of teak trees for thinning

Fidel Cándano Acosta; Igor Martins Silva; Marcos Leandro Garcia; Rafael Rodolfo de Melo

Downloads: 1
Views: 56


ABSTRACT This work was carried out in a teak plantation in the state of Mato Grosso, Brazil. The objective was to evaluate technical and economic indicators of the cutting and processing of trees with a track harvester. Twenty complete work shifts were evaluated using direct thinning to determine operational cycle times. Other information was also recorded for the calculation of production costs. The second thinning was performed at 12 years, with a volume of 0.1648 m³/tree, and the third thinning at 18 years with 0.3408 m³/tree. The main finding was an increase in productivity and decrease in production costs with rising tree volumes. For each hour of effective work, 53 trees were cut (339 trees/day), and processed into 1,047 logs. The decrease in the cost of cutting and processing trees in proportion to the increase in the average volume of trees to be extracted was confirmed.


Forest machines, mechanized cutting of trees, cut-to-length system


Ackerman P, Martin C, Brewer J, Ackerman S. 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. 2018;29(2):74-82.

Barnes RM. Motion and time study: design and measurement of work. 1968.

Bezerra AF, Milagres FR, Silva MLD, Leite HG. Economic analysis of settlements of Tectona grandis submitted to thinning in Mato Grosso. Cerne. 2011;17(4):583-92.

Bramucci M, Seixas F. Determinação e quantificação de fatores de influência sobre a produtividade de “harvesters” na colheita florestal. Scientia Forestalis. 2002;62(2):62-74.

Costa EM, Marzano FLC, Machado CC, Leite ES. Desempenho e custos operacionais de um harvester em floresta de baixa produtividade. Revista Engenharia na Agricultura. 2017;25(2):124-31.

Diniz CCC, Robert RCG, Vargas MB. Avaliação técnica de cabeçotes individual e múltiplo no processamento de madeira. Advances in Forestry Science. 2018;5(1):253-8.

Fernandes HC, Burla ER, Leite ES, Minette LJ. Technical and economic evaluation of a harvester under different terrain and forest productivity conditions. Scientia Forestalis. 2013.

Gerasimov Y, Senkin V, Väätäinen K. Productivity of single-grip harvesters in clear-cutting operations in the northern European part of Russia. European Journal of Forest Research. 2012;131(3):647-54.

Hildt E, Mac Donagh MP, Somma FF, Alegranza D, Durán D. Productividad de un harvester en raleos de plantaciones de pinos en el noreste argentino. Ciência Florestal. 2018;28(4):1627-39.

Johansson J. Excavators as base machines in logging operations. Journal of Forest Engineering. 1995;7(1):7-17.

Kärhä K, Rönkkö E, Gumse S. Productivity and Cutting Costs of Thinning Harvesters. International Journal of Forest Engineering. 2004;15(2):43-56.

Leonello EC, Gonçalves SP, Fenner PT. Efeito do tempo de experiência de operadores de Harvester no rendimento operacional. Revista Árvore. 2012;36(6):1129-33.

Lopes ES, Cruziniani E, Dias NA, Fiedler NC. Avaliação técnica e econômica do corte de madeira de pinus com cabeçote harvester em diferentes condições operacionais. Floresta. 2007;37(3):305-13.

Lopes ES, Oliveira FM, Roza BL. Efeito de variáveis operacionais na produtividade de um harvester de pneus no desbaste de pinus. Floresta. 2017;47(4):417-26.

Mac Donagh PM, Hildt E, Friedl RA, Zaderenko C, Alegranza DA. Influencia de la intensidad de raleos en la performance de un harvester de ruedas en el noreste argentino. Floresta. 2013;43(4):653-62.

Mac Donagh PM, Mulawka J, Friedl R, Zaderenko C, Alegranza D. Productividad y costos de pequeños “harvester” con oruga, operando en plantaciones de Pinus spp. en el noreste argentino. Scientia Forestalis. 2013;42(99):425-34.

Martins RJ, Seixas F, Stape JL. Avaliação técnica e econômica de um harvester trabalhando em diferentes condições de espaçamento e arranjo de plantio em povoamento de eucalipto. Scientia Forestalis. 2009;37(83):253-63.

Mc Ewan A, Magagnotti N, Spinelli R. The effects of number of stems per stool on cutting productivity in coppice Eucalyptus plantations. Silva Fennica. 2016;50(2):1-14.

Mederski PS. A comparison of harvesting productivity and costs in thinning operations with and without midfield. Forest Ecology and Management. 2006;224(3):286-96.

Nakagawa M, Hayashi N, Narushima T. Effect of tree size on time of each work element and processing productivity using an excavator-based single-grip harvester or processor at a landing. Journal for Forest Research. 2010;15(4):226-33.

Norihiro J, Ackerman P, Spong B, Längin D. Productivity model for cut-to-length harvester operation in South African Eucalyptus pulpwood plantations. Croatian Journal of Forest Engineering. 2018;39(1):1-13.

Purfürst FT, Erler J. The human influence on productivity in harvester operations. International Journal of Forest Engineering. 2011;22(2):15-22.

Rodrigues CK, Lopes ES, Pereira ALN, Sampietro JA. Effect of individual tree volume on operational performance of harvester processor. Floresta. 2019;49(2):345-52.

Seixas F, Batista JLF. Technical and economical comparison between wheel harvesters and excavators. Ciência Florestal. 2014;24(1):185-91.

Sessions J, Sessions JB. Cost control in forest harvesting and road construction. 1992.

Silva EL, Minette LJ, Fernades CH, Souza PA, Anaral JE, Lacerda GE. Desempenho do harvester na colheita de eucalipto em diferentes espaçamentos e declividades. Revista Árvore. 2014;38(1):1-8.

Silva NE, Machado CC, Minette JL, Souza PA, Silva LM, Jacovine AL. Avaliação técnica e econômica do corte mecanizado de pinus sp. com harvester. Revista Árvore. 2010;34(4):745-53.

Simões D, Fenner PT. Influência do relevo na produtividade e custos do harvester. Scientia Forestalis. 2010;85(38):107-14.

Sirén M, Aaltio H. Productivity and costs of thinning harvesters and harvester-forwarders. International Journal of Forest Engineering. 2013;14(1):39-48.

Spencer J. B. Slope limits for excavator based clear-fell and thinning harvesters. Technical development branch. 1992.

Strandgard M, Mitchell R. Impact of number of stems per stool on mechanical harvesting of a Eucalyptus globulus coppiced plantation in south-west Western Australia. Southern Forests. 2018;80(2):137-42.

Takizawa F. Apresentação sobre a situação da teca em Mato Grosso. 2018.

Tolosana E, Torrijos YA, Vignote S. Rendimientos, costes y efectos ambientales de las claras mecanizadas sobre repoblaciones de Pinus sylvestris L. en España. Forest Systems. 2002;11(1):39-65.

Vargas I, Sánchez L, Vargas R, Serrano E, González DE. Productividad de la cosechadora forestal en plantaciones comerciales de eucalipto (Eucalyptus spp.). Revista Mexicana de Ciencias Forestales. 2012;3(12):57-102.

Submitted date:

Accepted date:

5fd789720e8825de72654e4b floram Articles


Share this page
Page Sections