Technodiversity Glossary

If this is the only function, the machine is called feller. But a harvester can do the job as well.   

• it is a machine work if the working on site is dangerous
• taking the work apart from extremely danger site
• bunching tree into a suitable loads and/or laying down in a orderly pattern

• bringing the felling head to the felling site (skid roads or driving without the limitation on the ground)
• machine accessibility to the site (need a strip road, no pure selection)

• first cut in windthrows or on steep terrain
• biomass operation in thinning

Economic suitability:

Example

• machine costs without personal costs: 65,00 Euro/h
• personal costs per person: 35,00 Euro/h
• number of persons: 1
• in total: 100,00 Euro/h
• regression line time per tree
  • b0 = 2 min/tree
  • b1 = 0,5 min/m³

Ecological suitability:

Social suitability:

• S-class: work has no contact with forest roads, S5
• E-class: advanced machine work, E4

Schweier, J., Spinelli, R., Magagnotti, N., Becker, G. (2015) Mechanized coppice harvesting with new small-scale feller-bunchers: Results from harvesting trials with newly manufactured felling heads in Italy. Biomass and Bioenergy, 72, pp. 85-94. 

Spinelli, R., Cuchet, E., Roux, P. (2007) A new feller-buncher for harvesting energy wood: Results from a European test programme. Biomass and Bioenergy, 31 (4), pp. 205-210.

Spinelli R., Hartsough B., Owende P., Ward S. (2002) Productivity and cost of mechanized whole-tree harvesting of fast-growing eucalypt stands. International Journal of Forest Engineering 13, p. 49-60.

Cacot E. Chantier de St. Vitte sur Briance (87)- Abattage mecanisé des peuplements feuillus par une tête a guillotine. Paris: AFOCEL Flash Chantier CO68; 2004.

Hiesl P, Benjamin J. 2013. A multi-stem feller-buncher cycle-time model for partial harvest of small-diameter wood stands. IFJE 2013;24(2):101-108.

Visser R., Stampfer K. 2003 Tree lenght system evaluation of second thinning in a loblolly pine plantation. Southern Journal of Applied Forestry 27: 77-82