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Table 1 Descriptive statistics of Chinese fir trees (n = 1498)

From: Predicting crown width and length using nonlinear mixed-effects models: a test of competition measures using Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.)

Variable

Min

Max

Mean

SD

Cv%

DBH (cm)

4.0

38.8

14.44

5.36

37.08

H (m)

3.5

32.2

12.91

5.49

42.55

A (yr)

6

30

16.52

8.42

54.27

CW (m)

0.3

5.2

2.50

0.78

31.04

CL (m)

0.1

22.3

4.66

2.33

50.09

HCB (m)

2.1

24.7

8.25

4.24

51.36

TPH (trees·ha−1)

1159

3136

2217.00

639.56

28.85

  1. Min, minimum; Max, maximum; SD, standard deviation; Cv%, coefficient of variation; DBH, diameter at breast height; H, height; A, stand age; CW, crown width; CL, crown length; HCB, height to crown base; TPH, trees per hectare