ONF 30/08/19 Epicéas, sapins, hêtres... Ces arbres qui souffrent de la sécheresse. Mauvaise passe pour les forêts françaises.
D'intensité variable selon les régions, la végétation souffre du manque d’eau, avec des conséquences bien souvent irréversibles. La situation, telle que nous l'avons décrite dans un précédent article, résulte de la sécheresse de 2018. À savoir, l'année la plus chaude jamais enregistrée par Météo France. Face aux sécheresses successives et à la hausse du mercure, les arbres ne réagissent pas tous de la même manière, rappelle le Département de la santé des forêts du ministère de l'Agriculture et de l'Alimentation dans sa lettre n°54 : "L’année 2019 accumule les mortalités d’arbres adultes, en particulier chez les épicéas, les hêtres, les sapins et les pins sylvestres. " Et d'ajouter : "La situation est évolutive et les effets sur les forêts continueront à se manifester et seront dépendantes du climat à venir. " Certains parasites profitent de la faiblesse des arbres. Récolter le bois À lire aussi : Autre résineux impacté par la sécheresse : le sapin.
REGIONAL ENVIRONMENTAL CHANGE 12/02/19 Regional adaptation of European beech (Fagus sylvatica) to drought in Central European conditions considering environmental suitability and economic implications. FRONT. PLANT SCI. 09/07/19 Potential Elevation Shift of the European Beech Stands (Fagus sylvatica L.) in Serbia. Introduction Over the last 50 years, climate change has been affecting forest ecosystems globally, and climate projection models argue that its impact will increase by the end of this century (Vose et al., 2012; Grimm et al., 2013; Brandt et al., 2016).
The expected rise of the global temperature will create new forest areas, particularly in northern zones and at higher elevations. Moreover, increased carbon dioxide concentrations in the atmosphere will further accelerate forest growth (Silva et al., 2016). Although creating new forests is a beneficial outcome of climate change in some areas, other areas would, in contrast, be exposed to high temperature extremes, drought, wildfire, etc., leading to forest loss and the shift of geographical areas or even extinction of plant species (IPCC and Core Writing Team, 2014; Tian et al., 2016).
Species distribution models (SDMs) are useful tools for developing strategies and adaptation policies to climate change. Materials and Methods. FORESTS 28/07/19 Analyzing Spatial Distribution Patterns of European Beech (Fagus sylvatica L.) Regeneration in Dependence of Canopy Openings. The use of natural regeneration techniques is one of the key elements of modern (close-to-nature) forestry.
In natural forests, changes in canopy cover, such as the emergence and successive re-closure of canopy gaps are particularly important, as they influence the light availability on the forest floor. FORESTS 13/07/19 Exploring Nonlinear Intra-Annual Growth Dynamics in Fagus sylvatica L. Trees at the Italian ICP-Forests Level II Network. The European beech (Fagus sylvatica L.) is a widely distributed tree species across Europe, highly sensitive to climate change and global warming.
This study illustrates results of a 5-year monitoring time period from eight sites of the ICP-Forests Level II (intensive monitoring network) along the Italian latitudinal gradient. The tree-level relationship between tree growth dynamics and environmental factors, including seasonal climate fluctuations were investigated by means of tree-level Generalized Additive Mixed Models (GAMMs). Model results revealed that climate was responsible for just a portion of the variability in beech growth dynamics. Even if climatic predictors were highly significant in almost all sites, the model explained nearly 30% of the total variance (with just a maximum value of 71.6%), leaving the remaining variance unexplained and likely connected with forest management trajectories applied to each site (e.g., aged coppice and fully grown high forest).
Forest Ecology and Management Volume 461, 1 April 2020, Impact of species mixture on the stiffness of European beech (Fagus sylvatica L.) sawn timber. Forest Ecology and Management Volume 431, 1 January 2019 Root growth dynamics of three beech (Fagus sylvatica L.) provenances. Outline HighlightsAbstractKeywords1.
Introduction2. Material and methods3. Results4. Discussion5. Environmental Engineering and Management Journal - AVRIL 2018 - ANTIBACTERIAL ACTIVITIES OF BEECH BARK (Fagus sylvaticaL.) POLYPHENOLIC EXTRACT. EARTH - JANV 2019 - Mysterious disease is killing off beech trees in the eastern US. Researchers at The Ohio State University are investigating a new disease that is killing beech trees.
The experts report that the cause of “beech leaf disease” needs to be identified as soon as possible to stop it from continuing to spread. The disease has already made its way into 11 Ohio counties, eight Pennsylvania counties, and five counties in Ontario, Canada. The first sign of the disease is the appearance of dark-green bands between the veins of the leaves. In later stages, the leaves become crinkly, leathery, and darker all over. Ultimately, the tree limbs fail to form new buds and the tree dies. Senior researcher Pierluigi “Enrico” Bonello is a professor of Plant Pathology at Ohio State.
“It’s hard at this point to say where this disease will go, but it has all the hallmarks of something like emerald ash borer or sudden oak death, threats to trees that start slowly and quickly pick up speed. Beech trees are threatened in more than 30 states across the eastern U.S. ANTIOXIDANTS 19/09/19 Biological and Chemical Insights of Beech (Fagus sylvatica L.) Bark: A Source of Bioactive Compounds with Functional Properties. 1.
Introduction Bark plays an important role in protecting woody vascular plants, especially through its content in bioactive compounds with an antimicrobial effect . The bark of woody plants is considered to be a by-product of the forestry and wood industry. This can be an important source of bioactive compounds with a high recovery potential. Numerous studies show the importance and value of bark. ACTA OECOLOGICA - 1995 - Long-term growth trends of Fagus sylvatica L. in northeastern France. A comparison between high and low density stands.
DRAAF GRAND EST 28/08/20 Un nouvel épisode diffile pour les hêtres : quelques préconisations de gestion. GLOBAL ECOLOGY AND BIOGEOGRAPHY 04/06/19 Range‐wide variation in local adaptation and phenotypic plasticity of fitness‐related traits in Fagus sylvatica and their implications under climate change. Aim To better understand and more realistically predict future species distribution ranges, it is critical to account for local adaptation and phenotypic plasticity in populations' responses to climate.
This is challenging because local adaptation and phenotypic plasticity are trait‐dependent and traits covary along climatic gradients, with differential consequences for fitness. Our aim is to quantify local adaptation and phenotypic plasticity of vertical and radial growth, leaf flushing and survival across the range of Fagus sylvatica and to estimate the contribution of each trait to explaining the species' occurrence. Location Europe. Time period Major taxa studied. SCIENCEMAG 14/11/19 A mysterious disease is striking American beech trees. A mysterious disease is starting to kill American beeches, one of eastern North America's most important trees, and has spread rapidly from the Great Lakes to New England.
But scientists disagree about what is causing the ailment, dubbed beech leaf disease. Some have recently blamed a tiny leaf-eating worm introduced from Asia, but others are skeptical that's the whole story. Regardless of their views, researchers say the outbreak deserves attention. "We're dealing with something really unusual," says Lynn Carta, a plant disease specialist with the U.S. REV. FOR. - 2009 - Impact potentiel du changement climatique sur la distribution de l’Épicéa, du Sapin, du Hêtre et du Chêne sessile en France.
EARTH - JANV 2019 - Mysterious disease is killing off beech trees in the eastern US. Rev. For. Fr. LXIX - 3-2017 - Le Hêtre face au changement climatique : le cas de la Belgique. PLANT BIOSYSTEMS 22/02/18 Potential impacts of climate change on habitat suitability of Fagus sylvatica L. forests in spain. JOURNAL OF VEGETATION SCIENCE - 2008 - The drought tolerance limit of Fagus sylvatica forest on limestone in southwestern Germany. GEORG AUGUST UNIVERSITAT GOTTINGEN 06/06/18 Dissertation en ligne : Structure, Productivity and Carbon Storage of Primeval European Beech Forests. FORESTS 01/08/18 Genetic Variation of European Beech Populations and Their Progeny from Northeast Germany to Southwest Switzerland. Forest Ecology and Management Volume 405, 1 December 2017, European beech deadwood can increase soil organic carbon sequestration in forest topsoils.
Forest Ecology and Management Volume 401, 1 October 2017, Productivity of Fagus sylvatica under climate change – A Bayesian analysis of risk and uncertainty using the model 3-PG. BRITISH ECOLOGICAL SOCIETY 05/06/17 The impact of even‐aged and uneven‐aged forest management on regional biodiversity of multiple taxa in European beech forests. Globally, new forest management and conservation approaches are under discussion to better integrate economic and biodiversity conservation objectives and to replace the classical even‐aged (EA) management systems (Messier et al., 2015).
In countries of the temperate zone, two approaches for reducing biodiversity loss in managed forests are currently being discussed: (1) to reject complete biomass removals by leaving retention trees (Lindenmayer et al., 2012) and (2) to manage at a rather fine spatial grain by single tree or group selection cuttings leading to uneven‐aged (UEA) forests (Puettmann et al., 2015). Both alternatives attempt to ensure habitat continuity (Fritz, Gustafsson, & Larsson, 2008; Grove, 2002). In clear‐cut systems, it is suggested that some trees be retained to carry‐over structural elements into the next rotation (Gustafsson, Kouki, & Sverdrup‐Thygeson, 2010; Lindenmayer et al., 2012). In contrast to existing studies (e.g. 2.1 Study sites and forest management. BMC Ecol. 2018 Nov 20;18(1):47. Classifying development stages of primeval European beech forests: is clustering a useful tool? Invasive Species Centre (Ontario) VIA YOUTUBE 27/11/18 Beech Leaf Disease - Ontario's Perspective: Dr. Sharon Reed.
SILVA FENNICA 01/09/16 Survival of European beech in the central part of Latvia 33 years since the plantation. ECOSPHERE - DEC 2013 - Climatic turning point for beech and oak under climate change in Central Europe. FAO 10/02/15 Poster : MAIN PESTS OF BEECH FORESTS IN SOUTH EAST EUROPE. AGROPARISTECH - 2009 - Impact potentiel du changement climatique sur la distribution de l'Epicéa, du Sapin, du Hêtre et du Chêne sessile en France.
Royal Veterinary and Agricultural University - JANVIER 2006 - Thèse en ligne : Modelling the growth of European beech (Fagus sylvaticaL.) in Denmark. Forest Ecology and Management Volume 302, 15 August 2013, Low relative growth rates predict future mortality of common beech (Fa. WIKIPEDIA – Fagus sylvatica. Fagus sylvatica, the European beech or common beech, is a deciduous tree belonging to the beech family Fagaceae. Description Copper beech in autumn European beech shoot with nut cupules It is a large tree, capable of reaching heights of up to 50 m (160 ft) tall and 3 m (9.8 ft) trunk diameter, though more typically 25–35 m (82–115 ft) tall and up to 1.5 m (4.9 ft) trunk diameter. WIKIPEDIA – Hêtre commun. Un article de Wikipédia, l'encyclopédie libre.
Il est l'une des principales essences constitutives des forêts tempérées caducifoliées d'Europe où on peut le trouver en peuplements exclusifs de hêtraies pures ou le plus souvent associé à d'autres espèces majeures dans des forêts feuillues, principalement avec le Chêne rouvre, ou dans des forêts mixtes avec le Sapin pectiné ou l'Épicéa commun. C'est une essence bioindicatrice d'un climat tempéré humide. Les forestiers en pratiquent de longue date la sylviculture pour produire du bois de futaie principalement destiné à l'ameublement. Il est également utilisé comme source de bois de chauffage, surtout en zone de montagne.
Annals of Forest Science 62, 7 (2005) 625-632 Studies on European beech (Fagus sylvatica L.). Part 1 : variations of wood colour. Trees (2007) 21:1–11 Potential risks for European beech (Fagus sylvatica L.) in a changing climate. Wildlife Biology 15(2):187-196. 2009 Factors Affecting Beech Fagus sylvatica Bark Stripping by Red Deer Cervus elaphus in a Mixe. Laboratoire d’Étude des Ressources Forêt-Bois (LERFoB) 16/11/06 Thèse en ligne : Evolution de la productivité des peuplements ré.