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Table 5 Attributes for 3-year-old trialled species

From: Observations of “coarse” root development in young trees of nine exotic species from a New Zealand plot trial

Attribute

Oak

Eucalypt

Douglas-fir

Redwood

Cherry

Blackwood

Alder

Cypress

Radiata

Trees sampled

2

2

-

2

2

3

1

2

3

Tree height (m)

1.85 (0.45)

3.65 (0.35)

-

2.50 (0.60)

2.70 (0.50)

3.37 (0.08)

6.43

4.00 (0.90)

1.32 (0.38)

Canopy spread (m)

1.95 (0.40)

2.03 (0.27)

-

2.53 (0.53)

1.93 (0.87)

2.22 (0.42)

4.4

3.23 (0.73)

2.67 (0.73)

DBHa (mm)

12 (N/A)

40 (1.5)

-

34 (24.0)

28 (6.0)

52 (1.5)

80

84 (39.0)

71 (3.0)

RCDb (mm)

82 (0.25)

94 (11.5)

-

91 (32.0)

101 (32.5)

107 (9.3)

129

158 (32.0)

103 (25.2)

Max. root diameter (m)

1.50 (1.10)

4.50 (0.30)

-

3.10 (0.50)

3.20 (1.70)

6.93 (1.69)

7.70

5.60 (0.40)

3.27 (1.11)

Max. root depth (m)

0.35 (0.05)

0.30 (0.05)

-

0.28 (0.03)

0.28 (0.08)

0.32 (0.02)

0.50

0.35 (0.05)

2.27 (0.03)

Total AGBc (g)

1098 (628)

4743 (876)

-

3921 (2468)

4552 (3625)

6834 (2055)

12071

28942 (17326)

6848 (3384)

Total BGBd (g)

1022 (711)

1561 (260)

-

1129 (506)

6200 (5807)

2520 (770)

8959

5088 (2596)

2046 (945)

Total root masse (g)

483 (370)

1022 (160)

-

605 (253)

4780 (4549)

1595 (456)

8117

2954 (1296)

1268 (617)

Total root length > 1 mm (m)

94.7 (51.8)

83.0 (38.7)

-

208.3 (70.0)

403.2 (357.4)

209.3 (81.8)

1268.7

837.4 (431.7)

128.1 (46.3)

  1. Data are presented as means (with the exception of Alder), numbers in brackets are standard error of the mean. adiameter at breast height, broot collar diameter, ctotal above-ground biomass, dtotal below-ground biomass including stump/root bole, etotal root mass excluding the stump/root bole