Signs and symptoms scoring table

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