Technodiversity Glossary

When trees are cross-cut at the felling site, the logs must be pre-skidded to the trail separately. This is only rational when the weight of the tree length is too high. For example, the basic log can be separated from the rest of the stem before pre-skidding.     

Functiogram:

• low weights, lower damage in the stand

• low productivity

• Small scale forestry
• simple, light machines

Economic suitability:

Minutes per cycle

Example:

• machine costs without personal costs: 60,00 Euro/h
• personal costs per person: 35,00 Euro/h
• number of persons: 2
• in total: 130,00 Euro/h
• regression line time per tree
  • b₀ = 4,0
  • b₁ (log volume) =  2,0
  • b₂ (skidding distance) = 0,1

Ecological suitability

Ecograms 

Social suitability:

• S-class: no contact with forest road -> S5
• E-class: simple machine work, heavy and dangerous -> E3