Technodiversity Glossary

Functiogram

• very fast loading and unloading
• no need to have an assistant to hook the loads
• no need for the operator to leave the cab
• by chains also possible on softer soils

• trees need to be pre-bunched for the system to be efficient
• smaller payload than for a clambunk or a forwarder
• high speed and many repetitive cycles are heavy on the operator

• plantation forestry (grapple-skidders on pre-bunched trees)

Economic suitability

Example:

• machine costs without personal costs: 80,00 Euro/h
• personal costs per person: 35,00 Euro/h
• number of persons: 1
• in total: 115,00 Euro/h
• regression line minutes per tree
  • b₀ = 2,5
  • b₁ (tree volume) = 1,0
  • b₂ (skidding distance) = 0,01 

Ecological suitability

Ecograms

Social suitability:

• S-class: unloading full trees on the road -> S3
• E-class: advanced machine work, moderate -> E4