Economic and social effects 1 Equivalent water thickness 1 Forecasting 1 Hieracium umbellatum Intraspecific trait variation 1 Leaf dry matter 1 Leaf dry matter content 1 Leaf mass per area 1 Leaf water content 1 Least squares approximations 1 PROSPECT 1 Partial least square regression 1 Partial least squares regression (PLSR) 1 Partial least squares regression models 1 Plants (botany) 1 Radiative transfer 1 Reflection 1 Rosa rugosa 1 Rubus caesius 1 Species specifics 1 accuracy assessment 1 correlation 1 dry matter 1 functional role 1 herb 1 prediction 1 radiative transfer 1 sampling 1 shrub 1 surface reflectance 1