# Monitoring Changes in the Enhanced Vegetation Index to Inform the Management of Forests
## Appendix A Appendix A Appendix A Appendix A.1 Data Sources
### Boosted Regression Trees (XGBoost Models)
Variable abbreviations—for_age: forest age; dd5_wt: winter degree days above 5 \"C; cmi_sm: summer climate moisture index; for_con: percentage of conifers; for_pro_0: non-protected forest equals 1, protected equals 0; lag#: 1-, 2- or 3-year lags. * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON] A framework for the detection and attribution of biodiversity change. _Philos. Trans. R. Soc. B Biol. Sci._**2022**, _378_, 20220182. [CrossRef]
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* Ontario Parks (1998) Ontario Parks.