Dataset: Variation in leaf reflectance spectra across the California flora partitioned by evolutionary history, geographic origin, and deep time

We collected leaf reflectance data from plants in a common garden where plants from across California are grown. We focused on 10 regions of the California Floristic Province represented at the Regional Parks Botanic Garden (RPBG). During the summer of 2020 and the early-fall of 2021, we visited RPBG with a back-pack spectroradiometer (ASD Fieldspec 4 and Fieldspec Pro) with an attached leaf clip and plant probe with its own light source (part number A122327). From each accessible plant we collected leaf-level reflectance spectra (380 to 2500 nm, 3 nm in the VNIR, 10 nm in the SWIR) from ~3 representative leaves). This dataset includes 631 region-by-species mean leaf-level reflectance spectra, both in raw reflectance as well as subjected to Continuum Removal.

我们从跨加州引种的同质园植株中采集了叶片反射光谱数据。本研究聚焦于区域公园植物园（Regional Parks Botanic Garden, RPBG）所引种的加州植物区系省（California Floristic Province）的10个区域的植株。2020年夏季与2021年早秋期间，我们携带搭载了自带光源的叶片夹持器与植物探头（部件编号A122327）的便携式野外光谱辐射仪（ASD Fieldspec 4与Fieldspec Pro）造访了RPBG。我们从每株可接触的植株的约3片代表性叶片上采集了叶片级反射光谱，光谱波段范围为380~2500 nm，其中可见光近红外波段（Visible and Near Infrared, VNIR）的采样间隔为3 nm，短波红外波段（Short Wave Infrared, SWIR）为10 nm。本数据集包含631条按区域-物种分类的平均叶片级反射光谱，涵盖原始反射率数据与经过包络线去除（Continuum Removal）处理后的光谱数据。