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Table 5 Mean structure parameter values and standard errors in hypothesis equations. Note that ρs and ρb were not measured, and the values used were based on literature

From: Age effect on tree structure and biomass allocation in Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies [L.] Karst.)

Parameter

Scots pine

Norway spruce

Equation

ηs

369.10 ± 17.77

812.60 ± 33.11

(1)

ηs/ηb

1.65 ± 0.07

1.58 ± 0.05

(2)

φb

1.16 ± 0.03

0.49 ± 0.01

(3)

γb

0.34 ± 0.08

0.32 ± 0.09

(4)

b

0.83 ± 0.04

0.64 ± 0.04

(4)

φc

0.39 ± 0.00

0.42 ± 0.01

(7)

φs

1.61 ± 0.02

1.32 ± 0.01

(8)

ρb

400

590

(3), (5)

ρs

398

351

(9)

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Annals of Forest Science

ISSN: 1297-966X