Table 6.1
(continued)
Code
Elevation
(m)
Dbh (cm)
Basal area (m
2
ha
−1
)
Age at 1.3 m
(years)
Dead trees
(%)
No. trees
(No. radii)
Tree-ring width
(mm)
Climate-R
2
(%)
a
DI
1528
± 4
56.5
± 2.2
45.4
98
± 6
0.0
12 (24)
2.75
± 0.13
47.14
OR
1370
± 5
42.3
± 1.5
39.5
108
± 4
0.0
11 (22)
1.73
± 0.03
46.80
MO
1400
± 30
46.1
± 1.6
29.6
117
± 9
0.0
15 (30)
1.61
± 0.09
42.04
AZ
1613
± 17
68.0
± 3.6
33.3
90
± 5
0.0
11 (22)
3.41
± 0.17
42.51
PN
1519
± 22
45.1
± 2.2
28.5
78
± 5
2.0
11 (22)
2.77
± 0.18
45.01
CO
1474
± 10
56.0
± 4.4
29.9
83
± 10
0.0
12 (27)
3.01
± 0.21
47.50
SN
1431
± 7
49.5
± 3.5
29.1
74
± 3
5.0
14 (29)
2.90
± 0.14
48.27
SA
1789
± 5
60.1
± 2.8
36.5
117
± 24
0.0
12 (29)
2.38
± 0.25
33.16
BA
1600
± 4
49.6
± 2.3
48.6
107
± 5
0.0
11 (29)
2.12
± 0.09
48.60
Declining sites are indicated with underlined codes
a
R
2
: percentage of growth variance of the 1950–1999 residual ring-width chronologies explained by climate. No vigour data were taken in site MO where
growth was studied using stem sections from recently felled trees
6 The Multiple Factors Explaining Decline in Mountain Forests …
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