Comparison of Different Scaling Methods of Harvester-Processed Timber

Abstract

Annually, harvester technology in the Czech Republic processes 38% of the wood yield, which represents 6.1 mil m3. At the same time, there is the open issue on the possibility of electronic scaling and grading of timber from harvesters as the quality of grading must be supported by correct methods of timber scaling in forest stands. The primary aim of this paper was to develop a methodology able to compare the differences between the timber scaling by harvester production-management software and by manual means within the stands. The differences are expected to range from 1.5 to 5% in the electronic calculation of timber volume as compared with the “Recommended Rules for the Measurement and Grading of Timber in the Czech Republic”.