NEON AOP Reflectance Spectra of Populus fremontii across Seventeen Sites in the US Southwest

Dataset for the manuscripts: Why do models go wrong? The importance of adaptations and acclimations in driving landscape-level spectral variation and Spectral landscape ecology of a foundation tree species reveals reduced variation under heat stresstraining_points_2021_table and training_points_2022_table are the canopy spectra of P. fremontii across the study sites in Arizona and Utah/Colorado, respectively. Species code represents whether it represents P. fremontii (1) or other (0). xl_poly category represents the site (17 sites total). Environmental data for each point is included.site_env_data and site_env_comparisons are the environmental data for each site. The comparisons table is a pairwise comparison between each of the 17 sites.