Scoring system for crown distance. (International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests, 2010)
Link to this table.

Score Class Definition
1 Cramped Canopies overlap
2 Closed Crowns touch one another
3 Loose spread Gap between crowns up to one-third of average crown diameter
4 Spread Gap between crowns up to two-thirds of average crown diameter
5 Distant Gap between crowns from two-thirds up to one whole of average crown diameter
6 Very distant Gap between crowns > 1/1 of average crown diameter

It is recommended to start with the tree standing closest to the sample tree in a clockwise procedure, score values are to averaged. Dead trees are taken into account as long as they are in the crown condition sample. Calculation: (Score 1 + Score 2 + Score 3 + Score 4)/4=CDRD_N</fontsize>

This page was last edited on 15 July 2015, at 14:53.