Scoring system adopted by ICP forests to identify the part of the trees affected by symptoms and signs of biotic and abiotic origin. (International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests, 2010))
Link to this table.

Affected part Specification of affected part Code Location in crown Code
Leaves/needles Current needle year 11 Upper crown 1
Older needles 12 lower crown 2
Needles of all ages 13 Patches 3
Broadleaves (incl. evergreen spec.) 14 Total crown 4
Branches, shoots and buds Current year shoots 21 Upper crown 1
Twigs (diameter < 2 cm) 22 lower crown 2
Branches diameter 2 to < 10cm 23 Patches 3
Branches diameter >= 10cm 24 Total crown 4
varying size 25
Top leader shoot 26
Buds 27
Stem and collar Crown stem: main trunk or bole within the crown 31
Bole: trunk between the collar and the crown 32
Roots (exposed) and collar (<= 25cm height) 33
Whole trunk 34
Dead tree 04
No symptoms on any part of tree 00
No assessment 09

This page was last edited on 15 July 2015, at 14:44.