végétation (2) spectacle (2) saison (2) physiologie (2) surveillance (2) écosystème (2) index (2) Monitoring (2) Physiology (2) Variation (2) Indexes (2) Photographs (2) Technique (2) Uncertainty (2) Repeat photography (2) Reflectance (2) Plants (2) Plant phenology (2) Physiology (2) Photographs (2) Phenology (2) Measurement (2) Indexes (2) Green (2) Dates (Fruit) (2) Coordinates (2) Biotic communities (2) Technique (2) Measurement (2) Structure (2)