Georges Kunstler, Emmanuel Defossez, Benoît Courbaud Tree regeneration vulnerability to climate change: relative contribution of direct climate effect, plant interactions, herbivores & pathogens Tackling climate change : the contribution of forest scientific knowledge. Tours 21 May 2012
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Tree regeneration vulnerability to climate change ... · Belledonne Cerces Field experiment Spatio-temporal variation of climatic conditions - 10 sites - 3 years. Ground vegetation
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Georges Kunstler, Emmanuel Defossez, Benoît Courbaud
Tree regeneration vulnerability to climate change:relative contribution of direct climate effect, plant interactions, herbivores & pathogens
Tackling climate change : the contribution of forest scientific knowledge. Tours 21 May 2012
Mountain Forests & climatic gradients
500 m 500 m
1000 m1000 m
2000 m2000 m
Quercus
FagusFagus QuercusQuercus
Fagus-Abies-Picea
Picea
PinusPinusClimate Change
Regeneration ?
Elevation range
Tree regeneration
Regeneration (Grubb 1977)
High vulnerability of seedlings
Seedling
ClimateT°/ precipitation
Direct & indirect climate effects on tree regeneration
Seedling
Adult tree
Insects herbivory
Soil µ-organismes
ClimateT°/ precipitation
Ground vegetation
Direct & indirect climate effects on tree regeneration
Seedling
Adult tree
Insects herbivory
Soil µ-organismes
ClimateT°/ precipitation
Ground vegetation
Direct & indirect climate effects on tree regeneration
?
?
?
Field experiment
Spatio-temporal variation of climatic conditionsSpatio-temporal variation of climatic conditions- 10 sites- 10 sites- 3 years- 3 years
500 m 500 m
1000 m1000 m
2000 m2000 m
QuercusQuercus
FagusFagus - - QuercusQuercus
Fagus-Abies-Fagus-Abies-PiceaPicea
PiceaPicea
PinusPinus
800 800 mm
1400 m1400 m
2000 m2000 m
FagusFagus - - QuercusQuercus
FagusFagus - - AbiesAbies
Fagus-Abies-PiceaFagus-Abies-Picea PiceaPicea
Pinus uncinata Pinus uncinata
1500 m1500 m
2000 m2000 m
Pinus sylvestris Pinus sylvestris
Larix decidua Larix decidua
Pinus uncinata Pinus uncinata
Vercors
Belledonne
Cerces
Field experiment
Spatio-temporal variation of climatic conditionsSpatio-temporal variation of climatic conditions- 10 sites- 10 sites- 3 years- 3 years