Effect of tropospheric ozone on tree growth, wood quality, and forest ecosystem fluxes: a model simulation.

Id:UA_22161

University of Antwerp

Tropospheric ozone (O3) has been shown to reduce the growth and carbon sink strength of European forests at currently prevailing concentrations. O3 concentrations are very likely to keep on increasing throughout the 21st century. Yet, the vast majority of forest models tends to ignore this O3 effect on growth when simulating future forest growth. The aim of this PhD-research is to extend an existing forest growth model, called ANAFORE (ANAlysis of FORest Ecosystems), by adding a new O3 effects module. This module will mechanistically simulate and express O3 induced growth as a function of stomatal O3 uptake rates. By means of existing datasets from O3 fumigation experiments on common beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) the module will be developed and parameterized. After validation the module will be implemented into the ANAFORE model. Eventually, the extended ANAFORE-model will be applied for 1. simulating of forest growth and O3-damage under predicted future climate and O3-regimes establishing O3 dose/response relationships; 2. establishing O3 dose/response relationships for trees.

Timeframe:
1 Oct 2007 → 30 Sep 2008
Keywords:
FOREST TREES,GROWTH & PRODUCTIVITY,MODELLING,SIMULATION MODEL,TROPOSPHERIC OZONE,WOOD QUALITY
Discipline codes:
  • BIOMEDICAL SCIENCES (B)
    • Ecology
      • Plant ecology
    • Botany
      • Physiology of vascular plants
    • Agronomics
      • Sylviculture, forestry, forestry technology

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