Canal-U

Mon compte
Avignon Université

[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 11


Copier le code pour partager la vidéo :
<div style="position:relative;padding-bottom:56.25%;padding-top:10px;height:0;overflow:hidden;"><iframe src="https://www.canal-u.tv/video/universite_d_avignon_et_des_pays_de_vaucluse/embed.1/colloque_gentree_final_conference_27_31_january_2020_seance_11.55337?width=100%&amp;height=100%" style="position:absolute;top:0;left:0;width:100%;height: 100%;" width="550" height="306" frameborder="0" allowfullscreen scrolling="no"></iframe></div> Si vous souhaitez partager une séquence, indiquez le début de celle-ci , et copiez le code : h m s
Producteur Canal-U :
Avignon Université
Contacter le contributeur
J’aime
Imprimer
partager facebook twitter Google +

[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 11


GENTREE Final Conference :

Elisabet MARTÍNEZ SANCHO - WSL Birmensdorf · Switzerland

 

GENTREE Final Conference 'Genetics to the rescue - managing forests sustainably in a changing environment'

27-31 January 2020, Avignon, France


http://www.gentree-h2020.eu/

Elisabet MARTÍNEZ SANCHO - WSL Birmensdorf · Switzerland : Tree growth sensitivity to climate change: disentangling the role of climate determinism and site-specific characteristics

Climate space constrains the multidimensional climatic conditions of the geographic area where a given species occurs.

Under ongoing climate change, the species-specific shapes of climate spaces are dynamically adjusting to the fast shifts towards generally warmer and drier conditions.

This also means that certain climatic combinations will disappear and new ones will emerge within the habitat distribution of most species.

With their long temporal scale and high temporal resolution, tree-rings series offer the opportunity to retrospectively assess the temporal dynamics of climatic growth limitations. In this study, we aim at identifying putatively vulnerable regions under future climate scenarios by i) assessing the general patterns of tree sensitivity to seasonal climate within the species’ climate spaces, and ii) disentangling the contribution of large-scale climate and site-specific characteristics on tree response.

A compilation of tree-ring series obtained from the H2020 project GenTree and the International Tree-Ring Data Bank (in total > 800 sites across Europe) was used in order to cover a wide spectrum of the climate spaces of four tree species with distinct ecological requirements: Fagus sylvatica, Picea abies, Pinus sylvestris, and Quercus petraea.

Tree-ring series were disassembled from their inherent temporal scale and reordered according to annual drought conditions.

Moving window correlations between these newly-built tree-ring series and seasonal temperature and precipitation were performed for the period 1960-1990, and were placed within the climate space of the species to identify general patterns of tree responses.

Linear mixed models were applied to elucidate whether or not tree vulnerability to climate at a given position in climate space is strongly modified by site-specific characteristics.

The findings highlight the spatiotemporal changes in tree growth sensitivity, providing new insights into forest vulnerability under scenarios of climate change.

 

 



 

commentaires


Ajouter un commentaire Lire les commentaires
*Les champs suivis d’un astérisque sont obligatoires.
Aucun commentaire sur cette vidéo pour le moment (les commentaires font l’objet d’une modération)
 

Dans la même collection

 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 1
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 2
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 3
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 4
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 5
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 6
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 7
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 8
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 9
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 10
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 12
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 13
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 14
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 15
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 16
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 17
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 18
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 19
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 20
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 21
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 22
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 23
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 24
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 25
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 26
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 27
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 28
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 29
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 30
 [COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 31
FMSH
 
Facebook Twitter Google+
Mon Compte