Table 4. Tangential extent of traumatic resin duct (TRD) formation (% of circumference with undamaged cambium) at the height of the center of injury (Hc) in growth rings formed 1 to 5 years after injury for all injuries analyzed in the eight Larix decidua trees. For Year 1, TRD extent is also given for the indicated vertical distances (cm) above the top (+) and below the bottom (–) of the injury. Abbreviations: SA, surface area of injury; and L, vertical length of injury.

Injury SA L Hc Tangential extent of TRDs
(cm2) (cm) (cm)
Year 1 Year 2 Year 3 Year 4 Year 5





At Hc +10 +30 +50 +70 –10 –30 –50

A-01 41 12 19 47 39 31 25 17 0 0 0 0 0 0 0
A-02 47 25 74 6 11 6 0 0 11 6 0 9 3 6 0
A-03 9 15 84 18 11 6 6 6 8 0 0 11 3 3 6
A-04 97 14 103 19 14 14 6 0 6 0 0 8 5 3 11
B-01 48 16 13 33 31 47 6 0 0 0 0 8 15 5 5
B-02 437 58 87 56 28 8 6 6 44 3 0 31 26 37 33
B-03 4 5 166 6 0 0 0 0 0 0 0 0 0 0 0
C-01 113 18 45 19 3 0 0 0 33 19 0 19 9 28 13
C-02 77 32 92 3 3 0 0 0 14 0 0 14 8 11 9
C-03 5 7 141 0 0 0 0 0 0 0 0 3 3 3 3
D-01 115 21 62 22 0 0 0 0 28 22 0 25 23 47 27
D-02 29 8 80 7 0 0 0 0 0 0 0 15 0 0 0
D-03 68 24 114 22 17 0 0 0 17 0 0 22 34 19 14
D-04 18 4 13 0 0 0 0 0 0 0 0 24 0 0 0
D-05 17 7 54 0 0 0 0 0 0 0 0 0 0 0 0
E-01 235 44 42 13 42 17 17 17 3 0 0 20 8 5 5
E-02 129 32 102 39 22 22 25 31 0 0 0 8 20 5 9
F-01 25 20 29 31 11 0 0 0 19 6 6 0 0 0 0
F-02 93 13 114 21 22 17 14 0 0 0 0 19 22 12 10
F-03 204 27 127 25 36 0 0 0 44 25 28 17 10 12 3
F-05 4 45 46 14 0 0 0 6 0 0 0 0 0 0
F-05 414 61 187 36 58 17 19 0 0 0 0 22 25 15 14
G-01 208 29 15 16 31 0 0 0 0 0 0 4 0 4 0
G-02 73 21 99 7 31 0 0 0 0 0 0 7 18 14 0
G-03 10 6 100 6 17 0 0 0 0 0 0 0 0 0 0
G-04 158 72 153 24 0 0 0 0 14 0 0 39 27 13 6
G-05 13 6 133 6 0 0 0 0 17 0 0 0 0 0 0
H-01 68 18 171 17 19 18 17 3 14 13 0 2 6 9 3
Mean 99 22 88 19 16 7 5 3 10 3 1 12 9 9 6
Min 4 4 13 0 0 0 0 0 0 0 0 0 0 0 0
Max 72 72 187 47 58 31 25 31 44 25 28 39 34 47 33
SD 113 18 50 15 16 12 8 7 13 7 5 11 11 12 8