A project focused on the development of generalized spectra-trait models for the prediction of leaf photosynthetic capacity. This includes models focused on the prediction of Vcmax, Jmax and dark respiration as well as leaf nitrogen, leaf mass per area (LMA), leaf water content (LWC).
Some ideas for providing objective definitions: https://www.nature.com/articles/sdata2018214
https://www.nature.com/articles/sdata2018214/figures/1
Biome defs by Olsson: https://github.com/TESTgroup-BNL/Global_Vcmax/blob/main/Vignettes/Biomes.csv
Köppen: https://en.wikipedia.org/wiki/K%C3%B6ppen_climate_classification