Phänologie - Phenology

Definition:

Phenology is the study of the seasonal timing of life cycle events and how they respond to seasonal changes in their environment.

Plant phenology

is the timing of developmental stages of plants, such as:
  • bud burst
  • beginning of leaf unfolding
  • beginning of flowering
  • may sprout
  • first ripe fruits
  • autumn colouring
  • leaf fall
(for natural vegetation)

Use of Phenlological Data:

  • Helps decision-making for farmers and foresters (cropping plans, cultivars selection, plant protection, fertilization, etc.)
  • Definition of natural seasons
  • Calculation of phenological maps
  • Frost warning of fruit trees and special crops
  • Pollen warning, tourism
  • Development of phenological models
  • Calibration and evaluation of satellite information (NDVI)
  • Biomonitoring
  • Monitoring of environmental changes
  • Climate impact studies

Phenological observations are one of the most sensitive indicators of climate impacts on vegetation in mid-latitudes. They can help for a better understanding of interactions between atmosphere and biosphere.