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Table 1 Mean ± standard deviation, minimum and maximum diameter at 1.3 m (DBH), age, height, and crown ratio, for n trees in uneven- and even-aged plots for both unmanaged and managed stands

From: Wood properties of black spruce (Picea mariana (Mill.) BSP) in relation to ring width and tree height in even- and uneven-aged boreal stands

 

Unmanaged

Managed

 

Uneven-aged (n = 24)

Even-aged (n = 23)

Uneven-aged (n = 23)

Even-aged (n = 25)

DBH (cm)

11.6 ± 2.6

16.0 ± 3.3

10.6 ± 3.2

17.2 ± 3.3

Age (years)

127 ± 33

102 ± 40

98 ± 16

80 ± 19

Height (m)

9.4 ± 1.8

14.9 ± 2.9

7.6 ± 2.5

14.6 ± 3.2

Crown ratio

0.54 ± 0.15

0.41 ± 0.16

0.69 ± 0.15

0.59 ± 0.13

  1. Crown ratio = crown length/tree height
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Annals of Forest Science

ISSN: 1297-966X