Skip to main content

Table 1 Descriptive statistics of dataset with standard deviations in parenthesis

From: Quantifying competition in white spruce (Picea glauca) plantations

Species

DBH (cm)

Ring width (mm)

Dominant height (m)

Number of individuals

Basal area (m2 ha−1)

Stand density (nbstems ha−1)

White spruce (Picea glauca)

13.6 (4.3)

2.7 (1.3)

11.4 (2.8)

1048

13.4 (7.2)

1272.3 (668.3)

Balsam fir (Abies balsamea)

13.0 (5.6)

2.8 (1.6)

12.0 (3.2)

365

4.5 (6.2)

453.0 (591.5)

Other conifers

 Black spruce (Picea mariana)

11.6 (3.8)

1.8 (1.1)

10.2 (2.5)

150

1.6 (4.7)

180.7 (506.7)

 Eastern larch (Larix laricina)

18.8 (6.6)

2.8 (1.5)

16.1 (4.7)

15

0.4 (3.1)

18.1 (118.1)

 Norway spruce (Picea abies)

9.5 (3.5)

3.3 (1.1)

9.6 (0.4)

8

0.0 (0.3)

9.6 (87.8)

 Eastern white cedar (Thuja occidentalis)

6.9 (2.6)

0.9 (1.0)

4.4 (0.0)

2

0.0 (0.1)

2.4 (15.4)

Broadleaves

 Trembling aspen (Populus tremuloides)

10.1 (5.1)

2.7 (1.6)

12.2 (3.4)

66

0.5 (1.5)

80.7 (192.2)

 Paper birch (Betula papyrifera)

8.8 (3.7)

1.9 (0.9)

9.9 (1.3)

32

0.2 (0.6)

41.0 (125.0)

 Sugar maple (Acer saccharum)

9.9 (6.3)

1.5 (0.5)

12.1 (3.9)

11

0.1 (0.8)

13.3 (58.0)

 Red maple (Acer rubrum)

7.5

2.5

7.6

1

0.1

32.5

  1. Bold characters indicate species groups for which models were calibrated