Indicators of tree condition (Eichorn and Roskams, 2013).
Link to this table
| Variable | Nature | Target | Scoring |
|---|---|---|---|
| Primary production | |||
| Defoliation | Estimate of the leaf/needle loss in relation to a reference standard | Assessable tree crown | 5% classes, from 0 to 100 |
| Apical shoot architecture | Estimate of the shoot development in relation to the standard of an adaptable tree crown | Apical tree crown | Classes |
| Fructification | Relative estimate of fruits | Whole tree crown | Classes |
| Fruit biomass | Biomass of fruits in litterfall traps | stand | Biomass per hectare |
| Diameter growth | Measurement of diameter growth | Stand | Diameter in cm |
| Ecosystem disturbances | |||
| Biotic/abiotic agents | Occurence and diagnosis of symptoms and signs | Whole tree | Affected part, symptom, symptom specification, quantification (classes) |
| Tree removals and mortality | Recording of absent trees and causes of disappearance | Plot | Number of trees and classification of causes |
| Ecosystem internal (inherent) regulation | |||
| Age of trees | Measure or estimate tree age | Sample trees | Years |
| Stand structure | Meaure tree-related stand structure | Sample trees | Sample tree-specific relative score |