Table 1. Stand characteristics on the permanent study areas (PSA) in the Kola peninsula.
PSA
number 		PSA size,
ha 		PSA coordinates Species Age,
years 		DBH,
cm 		Н,
m 		N,
ind. ha–1 		S,
m2 ha–1 		V,
m3 ha–1
Green moss-lichen type
1 (75) 0.10 67°51´N, 31°23´E P 70 11.9 11.5 1156 12.9 74.2
B no data 7.9 7.7 478 2.3 8.9
2 (90) 0.20 67°51´N, 31°23´E P 81 17.6 15.0 420 10.2 76.5
B no data 4.5 3.6 32 0.05 0.1
3 (91) 0.10 67°51´N, 31°25´E P 69 15.9 12.0 655 13.1 78.6
B no data 7.7 8.2 273 1.3 5.3
Mean value P 74 15.1 12.8 744 12.1 76.4
B no data 6.7 6.5 261 1.2 3.9
Green moss type
4 (93) 0.20 67°49´N, 31°19´E P 69 10.9 10.5 3100 29.0 152.3
B no data 5.3 6.1 120 0.26 0.8
5 (94) 0.10 67°49´N, 31°19´E P 70 14.5 14.6 1480 24.6 179.6
B no data 6.1 8.4 140 0.41 1.7
6 (99) 0.20 67°49´N, 33°19´E P 75 15.0 14.2 1420 25.1 178.2
B no data 7.3 7.9 320 1.3 5.1
Mean value P 71 13.5 13.1 2000 26.3 172.3
B no data 6.2 7.5 193 0.66 2.5
P – Scots pine; B – pubescent birch; H – height; N – number of individuals; S – basal area; V – volume.
1

Fig. 1. The vitality distribution of Scots pine trees in the studied communities in the Kola peninsula. White bars – by the number of individuals, black bars – by volume. I – non-oppressed (healthy) trees; II – moderately oppressed
(moderately weakened) trees; III – strongly oppressed (strongly weakened) trees; IV – dying trees; V – dry trees.

2

Fig. 2. Dynamics of radial increment (mm year–1) in Scots pine trees of differing-vitality state (I–IV) in green moss-lichen (A) and green moss site type (B) pine forest in the Kola peninsula. I – non-oppressed (healthy) trees; II – moderately oppressed (moderately weakened) trees; III – strongly oppressed (strongly weakened) trees; IV – dying trees. A horizontal line is the median; a box is the interval between 17th and 83th percentiles; whiskers represent the interval from 2.5th to 97.5th percentiles.

3

Fig. 3. Dynamics of basal area increment (cm2 year–1) in Scots pine trees of differing-vitality state (I–IV) in green moss-lichen (A) and green moss site type (B) pine forest in the Kola peninsula. I – non-oppressed (healthy) trees; II – moderately oppressed (moderately weakened) trees; III – strongly oppressed (strongly weakened) trees; IV – dying trees. A horizontal line is the median; a box is the interval between 17th and 83th percentiles; whiskers represent the interval from 2.5th to 97.5th percentiles.