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Table 2 The degree of determination (R 2) between selected field attributes and alpha value (α), total volume (V), number of connected tetrahedra (N), coverage (C), and top height (H) of the canopy models

From: Reconstructing forest canopy from the 3D triangulations of airborne laser scanning point data for the visualization and planning of forested landscapes

Field observation

α

V

N

C

H

Stem volume, m3/ha

0.01

0.26*

0.07*

0.09*

0.54*

Basal area, m2/ha

0.00

0.11*

0.06*

0.07*

0.16*

Number of stems, 1/ha

0.02

0.02

0.00

0.03

0.19

Basal-area weighted mean diameter, cm

0.05

0.27*

0.04

0.05

0.78*

Dominant height, m

0.02

0.32*

0.06*

0.07*

0.94*

CEI

0.06*

0.01

0.05

0.06*

0.00

  1. Asterisk marks significance of the correlation at the 95% confidence level, while R 2 > 0.5 are printed in italics
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Annals of Forest Science

ISSN: 1297-966X