Leaf-clip optical sensor data

In Puéchabon and Pic Saint Loup forests (FR), optical measurements in the PAR region (Photosynthetically Active Radiation) with two leaf-clip sensors, DUALEX and SPAD, were performed on 747 sampled leaves to retrieve the SPAD chlorophylls index, total chlorophylls content, anthocyanins content, flavonoids content and a nitrogen index. Leaves were sampled over 45 trees of two oak species (Quercus pubescens and Quercus ilex) between April and October 2021. If using this dataset, please cite Adeline et al., 2024 https://doi.org/10.1016/j.dib.2024.110185