High-pruning of European beech (Fagus sylvatica L.) and pedunculate oak (Quercus robur L.): work efficiency for target pruning as a function of tree species, pruning height, branch characteristics, pole saw type and operator

Sammanfattning

The objective of this study was to establish an operational model of productive work time per tree (work efficiency) for high-pruning of young European beech and pedunculate oak depending on tree species, pruning height, branch characteristics, pole saw type and operator. The final model included all of these independent variables with branch characteristics specified in terms of number of live branches and cross-sectional area of the thickest branch at the cut. Work time increased with increasing values of each of the three numeric variables. For a given pruning height the size of the largest branch was for all practical purposes more influential than the number of live branches. Beech took 28% longer to prune than oak. The German Ergo-Schnitt saw was 21% slower than the Japanese Silky Hayauchi saw. The variation in worker performance within our study was larger than that attributed to tree species and pruning equipment.

Nyckelord

High-pruning; bottom-up pruning; target pruning; pole saw; beech; oak; work efficiency

Publicerad i

Scandinavian Journal of Forest Research
2018, volym: 33, nummer: 5, sidor: 511-517
Utgivare: TAYLOR & FRANCIS AS

SLU författare

• Skovsgaard, Jens Peter

  • Institutionen för sydsvensk skogsvetenskap, Sveriges lantbruksuniversitet
    

• Attocchi, Giulia

  • Institutionen för sydsvensk skogsvetenskap, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Skogsvetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1080/02827581.2018.1441901

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/95765