Table 2 Coding variables for the climate change competition tree growth systematic map
Coding variables | Information recorded |
|---|---|
1. Research characteristics | |
Full reference | Author(s), title, date, publisher |
Date | Date of publication in years |
Publication type | Name of the scientific journal |
Purpose | Objective of the study |
Jurisdiction | Country(s) name and coordinates |
Species | Study species’ scientific name |
Forest | Type of forest assessed |
2. Tree growth model specifications | |
Model type | Type of tree growth model applied (linear regression, linear mixed effect model, generalized linear model, Bayesian statistics, correlation methods or not specified) |
Response variable | Measure of tree growth |
• Basal area (BA) | |
• Basal area increment (BAI) | |
• Ring width (RW) | |
• Diameter at breast height (DBH) | |
• Biomass | |
• Height (H) | |
• Volume (V) | |
Predictors | Precipitation, temperature, other climatic variables |
3. Evidence of the competition effect on tree growth under climate change | |
Competition index | Type of indices (distant dependent, or distant independent) |
Influence | Effect of competition on tree growth (free text; extract information for each tree species) |
Management recommendations | Thinning (yes, no or no recommendation) |