Is allometry for aboveground organ's mass estimation in young norway spruce stands affected by different type of thinning

Abstract

The study focuses on determination of aboveground organ's mass using allometric relationships in Norway spruce stands with diff erent type of thinning management - thinning from below (TfB) and thinning from above (TfA). Allometric functions for predicting of stem, branch, leaf and total aboveground mass were estimated from measurements of basic stem dendrometric parameters. The highest adjusted regression coeffi cients were found between DBH and biomass of aboveground tree organs (adj. r2 ranged from 0.91 to 0.98). Multiple linear regressions provide correlation coeffi cients r2 from 0.88 to 0.98 for TfB and from 0.90 to 0.98 for TfA. The presented results showed no eff ect of diff erent type of thinning application on tree allometry.