Centre de documentation
scientifique

Forêts et changement climatique / François Courbet (2022)  

Public Titre : Forêts et changement climatique : comprendre et modéliser le fonctionnement hydrique des arbres Type de document : Monographie Auteurs : François Courbet, Éditeur scientifique ; Claude Doussan, Éditeur scientifique ; Jean-Marc Limousin, Éditeur scientifique ; et al., Auteur Editeur : Versailles : Quae Année de publication : 2022 Collection : Synthèses, ISSN 1777-4624 Importance : 144 p. ISBN/ISSN/EAN : 978-2-7592-3457-8 Note générale : Glossaire et bibliographie Langues : Français (fre) Descripteur : [Termes IGN] arbre (flore) [Termes IGN] bilan hydrique [Termes IGN] changement climatique [Termes IGN] écophysiologie [Termes IGN] foresterie [Termes IGN] humidité du sol [Termes IGN] indicateur hydrographique [Termes IGN] risque naturel [Termes IGN] sécheresse [Termes IGN] stress hydrique [Termes IGN] vulnérabilité [Vedettes matières IGN] Végétation et changement climatique Index. décimale : 48.30 Végétation et changement climatique Résumé : (Editeur) Face au changement climatique, le risque de sécheresse est un risque majeur auquel les forêts sont confrontées. L'ouvrage présente les connaissances de bases du fonctionnement hydrique des arbres, les indicateurs observables des effets de la sécheresse et les modèles capables de simuler le fonctionnement des forêts en fonction du climat et de son évolution. Note de contenu : Introduction Chapitre 1. Fonctionnement hydrique des arbres forestiers - Les voies de transfert de l’eau dans le système sol-arbre-atmosphère - L’eau dans le sol - L’eau dans l’arbre - Transfert de l’eau : concepts et formalisation - Le fonctionnement d’un arbre en cas de sécheresse - Les paramètres de la vulnérabilité à la sécheresse - Les indicateurs des effets de la sécheresse - Récapitulatif Chapitre 2. Bilan hydrique et modèles : des outils au service des chercheurs et des praticiens - Caractériser le niveau de sécheresse subie par les arbres : le bilan hydrique - Des modèles intégrateurs des connaissances sur le fonctionnement des arbres - Conclusion Chapitre 3. Fiches variables écophysiologiques - Le potentiel hydrique - Flux hydrique - Conductance et conductivité - Efficience d’utilisation de l’eau (WUE pour Water Use Efficiency) - Rapports isotopiques - Cavitation Chapitre 4. Processus et paramètres impliqués dans les modèles de fonctionnement de la végétation - Principaux processus impliqués dans les modèles de fonctionnement - Principaux paramètres et variables impliqués dans les modèles de fonctionnement Chapitre 5. Fiches modèles fonctionnels - Biljou - CASTANEA - CONTINUUM - GO+ - ISBA - MAIDEN - MuSICA - NOTG - ORCHIDÉE - PHENOFIT4 - RReShar - SAMSARA2 - SIERRA - SurEau Numéro de notice : 26950 Affiliation des auteurs : non IGN Thématique : FORET Nature : Monographie nature-HAL : OuvrScient DOI : 10.17528/cifor/008565 En ligne : https://dx.doi.org/10.17528/cifor/008565 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102377

Topographic, edaphic and climate influences on aspen (Populus tremuloides) drought stress on an intermountain bunchgrass prairie / Andrew Neary in Forest ecology and management, vol 479 ([01/01/2021])  

Public [article]  inForest ecology and management > vol 479 [01/01/2021] . - 12 p. Titre : Topographic, edaphic and climate influences on aspen (Populus tremuloides) drought stress on an intermountain bunchgrass prairie Type de document : Article/Communication Auteurs : Andrew Neary, Auteur ; Ricardo Mata-González, Auteur ; Heidi Schmalz, Auteur Année de publication : 2021 Article en page(s) : 12 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse de sensibilité [Termes IGN] climat [Termes IGN] écophysiologie [Termes IGN] état du sol [Termes IGN] facteur édaphique [Termes IGN] hauteur des arbres [Termes IGN] humidité du sol [Termes IGN] manteau neigeux [Termes IGN] Oregon (Etats-Unis) [Termes IGN] Poaceae [Termes IGN] Populus tremuloides [Termes IGN] prairie [Termes IGN] série temporelle [Termes IGN] stress hydrique [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) Quaking aspen, Populus tremuloides, has experienced severe declines in recent years in part due to the effects of changing climate and extreme drought. This study set out to investigate these effects by assessing associations of climatic, edaphic and topographic variables with physiological drought stress in aspen. The study took place on the Zumwalt Prairie in northeastern Oregon, a semi-arid bunchgrass prairie where aspen occur in isolated stands associated with riparian areas and late-season persistence of snow drifts. Using a 33-year time series of Landsat imagery to detect associations of aspen stands late-season snow cover and field measurements of soil moisture in aspen stands during 2017, we found while snow dominated stands were associated with greater soil moisture during spring, levels had equilibrated to those of other upland stands by summer. Measurements of predawn and midday stem Ψ in multiple height classes of aspen ramets revealed associations of both shallow soil moisture and vapor pressure deficit with physiological drought stress in aspen. Analysis of soil texture class revealed an important association with midday stem Ψ, with finer textured soils associated with decreased stem Ψ in comparison to coarser textured soils. While neither topographical characteristics nor snow cover were found to be important drivers of drought stress, topographical curvature was found to have a strong influence on summer soil moisture in upland stands. These findings contribute to our understanding of aspen physiology, drought ecology and landscape hydrology toward the xeric margin of aspen’s range. This information can help land managers anticipate and adapt to changing climates and understand their effects on key plant species such as aspen. Numéro de notice : A2021-001 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.foreco.2020.118530 Date de publication en ligne : 08/09/2020 En ligne : https://doi.org/10.1016/j.foreco.2020.118530 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96028 [article]

The effects of different combinations of simulated climate change-related stressors on juveniles of seven forest tree species grown as mono-species and mixed cultures / Alfas Pliüra in Baltic forestry, vol 26 n° 1 ([01/02/2020])  

Public [article]  inBaltic forestry > vol 26 n° 1 [01/02/2020] . - 14 p. Titre : The effects of different combinations of simulated climate change-related stressors on juveniles of seven forest tree species grown as mono-species and mixed cultures Type de document : Article/Communication Auteurs : Alfas Pliüra, Auteur ; Gintare Bajerkeviciene, Auteur ; Juozas Labokas, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : 14 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Alnus glutinosa [Termes IGN] Betula pendula [Termes IGN] biomasse [Termes IGN] croissance des arbres [Termes IGN] dioxyde de carbone [Termes IGN] écophysiologie [Termes IGN] écosystème forestier [Termes IGN] Fraxinus excelsior [Termes IGN] Leaf Area Index [Termes IGN] Lituanie [Termes IGN] peuplement mélangé [Termes IGN] Picea abies [Termes IGN] Pinus sylvestris [Termes IGN] Populus tremula [Termes IGN] Quercus pedunculata [Termes IGN] sécheresse [Termes IGN] stress hydrique [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) The aim of the study was to assess changes in performance and competition for light of juveniles of seven forest tree species, Pinus sylvestris, Picea abies, Betula pendula, Alnus glutinosa, Populus tremula, Quercus robur and Fraxinus excelsior, grown in mono-species and mixed cultures with isolated potted roots under the impact of different combinations of climate change-related stressors, simulated in a phytotron under the elevated CO2 concentration during one growing season, as follows: i) heat + elevated humidity (HW); ii) heat + frost + drought (HFD); iii) heat + elevated humidity + increased UV-B radiation doses + elevated ozone concentration (HWUO); and iv) heat + frost + drought + increased UV-B radiation doses + elevated ozone concentration (HFDUO). For the mixed cultures, three typical species’ mixtures were used: i) P. sylvestris, B. pendula and P. abies, ii) P. abies, B. pendula and Q. robur and iii) F. excelsior, A. glutinosa and P. tremula. For the control, the same material was grown outside the phytotron in ambient conditions. Analysis of variance (ANOVA) revealed that the effects of the complex treatments, species and species by treatment interactions were highly significant in most of the biomass, growth, physiological and biochemical traits studied. Pattern of species culture had highly significant effect on physiological and biochemical traits (except for H2O2 concentration); meanwhile it was of low significance for biomass and growth traits. Pattern of species culture by treatment interaction was highly significant in all traits, suggesting that the effects of the applied complex treatments vary depending on the pattern of species culture. Under the hot wet conditions the highest stem volume index, tree biomass, and growth were observed in deciduous P. tremula, A. glutinosa and B. pendula with more clearly pronounced differences in performance between different patterns of species cultures than in ambient conditions showing that the enhanced growth conditions facilitate revealing the potential and specific requirements of the fast-growers. P. abies in all treatments had lower stem volume index and tree biomass than in ambient conditions with no significant differences between the patterns of species culture, indicating that it suffered irrespectively of light availability in different cultures. The differences between performances of most tree species in mono- and mixed cultures in HFD treatment were rather small and nonsignificant. A complex HWUO treatment caused further reduction in tree biomass in all species and culture patterns except for mono-species cultures of A. glutinosa and B. pendula. The most complex HFDUO treatment had the strongest negative effect on biomass of almost all tree species compared to that observed in HW treatment, except for Q. robur and P. sylvestris which biomass and height increments remained higher than those in ambient conditions. This was due to relatively high drought tolerance and compensatory effects of the increased CO2 concentration and temperature. Physiological and biochemical responses of species in different patterns of species cultures across treatments were very variable although often did not reflect in the effects on growth and biomass traits. The observed changes in performance of different tree species in different patterns of species cultures under various complex treatments allowed inferring that climate change may condition certain changes in competitiveness of some tree species resulting in atypical ecological successions of species and forest ecosystems Numéro de notice : A2020-595 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.46490/BF326 Date de publication en ligne : 23/03/2020 En ligne : https://doi.org/10.46490/BF326 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95888 [article]

Une infrastructure atlantique pour la recherche sur l'adaptation des forêts au changement climatique / Christophe Orazio in Forêt entreprise, n° 223 (juillet-août 2015)

Public [article]  inForêt entreprise > n° 223 (juillet-août 2015) . - 4 p. Titre : Une infrastructure atlantique pour la recherche sur l'adaptation des forêts au changement climatique Type de document : Article/Communication Auteurs : Christophe Orazio, Auteur Année de publication : 2015 Article en page(s) : 4 p. Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] changement climatique [Termes IGN] dommage matériel [Termes IGN] écophysiologie [Termes IGN] peuplement forestier [Termes IGN] recherche scientifique [Termes IGN] stress hydrique [Vedettes matières IGN] Végétation et changement climatique Numéro de notice : A2015--095 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85062 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P001722	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt

Drought susceptibility and recovery of transplanted Quercus rubra seedlings in relation to root system morphology / Douglass F. Jacobs in Annals of Forest Science, Vol 66 n° 5 (July - August 2009)  

Public [article]  inAnnals of Forest Science > Vol 66 n° 5 (July - August 2009) . - n° 504 Titre : Drought susceptibility and recovery of transplanted Quercus rubra seedlings in relation to root system morphology Titre original : Sensibilité à la sécheresse et reprise des semis transplantés de Quercus rubra en relation avec la morphologie racinaire Type de document : Article/Communication Auteurs : Douglass F. Jacobs, Auteur ; K. Francis Salifu, Auteur ; Anthony S. David, Auteur Année de publication : 2009 Article en page(s) : n° 504 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] écophysiologie [Termes IGN] Quercus rubra [Termes IGN] semis (sylviculture) [Termes IGN] stress hydrique [Termes IGN] système radiculaire [Termes IGN] xylème Résumé : (auteur) Transplant shock, implicated by depressed seedling physiological status associated with moisture stress immediately following planting, limits early plantation establishment. Large root volume (Rv) has potential to alleviate transplant shock because of higher root growth potential and greater access to soil water. We investigated impacts of drought and transplant Rv on photosynthetic assimilation (A), transpiration (E), stomatal conductance (gs), predawn leaf xylem water potential (ΨL), and growth of northern red oak (Quercus rubra L.) seedlings to explain mechanisms associated with susceptibility to transplant shock. One year-old barerooot seedlings were graded into four Rv categories and either well watered or subjected to drought consisting of low, medium, or high moisture stress by discontinuing irrigation at 22-day intervals for 3 months. Thereafter, all treatments were re-watered to examine recovery. Transplant shock was signified by reduced A, E, gs, and ΨL, which generally increased with increasing moisture stress and Rv. Physiological status improved during recovery, though stress was still evident in seedlings exposed to medium or high moisture stress and in larger Rv seedlings. Growth declined with increasing moisture stress but was generally similar among Rv treatments, likely reflecting greater A at the whole plant level and/or reliance upon stored reserves in large Rv seedlings. The most effective drought avoidance mechanisms were root growth, stomatal regulation, reduced leaf area, and higher growth allocation to roots relative to shoots. Our results suggest that large initial Rv does not enhance drought avoidance during the first season after transplant in northern red oak seedlings. Numéro de notice : A2009-638 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1051/forest/2009029 Date de publication en ligne : 09/07/2009 En ligne : https://www.afs-journal.org/articles/forest/full_html/2009/05/f09040/f09040.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72462 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P000455	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt

Ecophysiologie et fonctionnement des écosystèmes forestiers / André Granier in Rendez-vous techniques, Hors-série n° 3 (décembre 2007)

Permalink