Form 5a - ICP Forests

Note:
Quantitative estimates of both flowering and fruiting can be obtained by the use of litter
traps. However, such data cannot be readily related to individual trees.
(30) Secondary shoots and epicormics D_SHOOT_EPICORMIC
(Chapter 2)
Separate assessments are made of the frequency (3 classes) of epicormics in the
assessable crown and on the stem. The assessment must include all epicormics, not only
the ones of the current year. Scoring is in three classes:
1 None or rare
2 Medium: light development or only present in parts of the crown or stem
3 Abundant: present throughout the majority of the crown or all over the
stem
(31) Crown form/morphology (incl. Roloff) D_CROWN_FORM (at least
since 1996)
(Chapter 2)
Crown form classifications have so far been developed for Picea spp., Fagus sylvatica
and Pinus sylvestris.
Note: the use of the Roloff classification system for species other than Fagus sylvatica
must be undertaken with special care and is not recommended.
Method:
Picea (Fig. A1-4)
11 comb
12 brush
13 plate
14 mix
Fagus sylvatica (Fig. A1-5)
21 trees with vigorous growth both of apical and side shoots
22 reduced apical shoot growth, side shoots are still formed but at lower frequency
(mainly consisting of short shoots)
23 strongly reduced apical shoot growth, no new lateral branches are formed. Shoot
appearance is “claw-like”
24 development of 23, with loss of side shoots
29 other
Pinus
31 pine, vigorous apical dominance with tree growing strongly upwards
32 pine, reduced or no apical dominance with crown showing signs of widening
33 pine, as 32, but lower branches being lost through suppression
34 platform developing, with dominant growth direction no longer upwards,
but crown still with some depth
35 platform fully developed, no vertical growth
39 other (specify)
Page 86 / 151