Impacts de la sécheresse sur le secteur forestier québécois dans un climat variable en évolution PDF Download
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Author: Daniel Houle
Publisher:
ISBN:
Category : Livres électroniques
Languages : fr
Pages : 16
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Book Description
Author: Daniel Houle
Publisher:
ISBN:
Category : Livres électroniques
Languages : fr
Pages : 16
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Des sécheresses sévères enregistrées dans l'ouest du pays en 2001 et 2002, de même que dans le nord-ouest des États-Unis entre 2009-2011, ont mené à des pertes de biomasse aérienne de l'ordre de 20 % et 31 % respectivement dans des forêts de tremble3, 4. Parallèlement, un déclin inhabituel de la croissance de l'épinette noire a été enregistré à la fin du 20e siècle dans la forêt boréale de l'est d [...] Des simulations bâties à partir de données empiriques de contenu en eau des sols projettent en effet des baisses moyennes de l'ordre de 0 à 40 % pour la période 2041-2070, et de 14 à 40 % pour la période 2071-2100 (voir Figure 2)9, 12. [...] Panneau B : Résultats de simu- lations de contenu en eau du sol dans l'humus (2 cm de profondeur) et l'horizon B (22-34 cm de profondeur) faites à partir de conditions projetées de températures et de précipitations, et calibrées à partir de modèles hydrologiques locaux calculés respectivement pour trois forêts dominées par l'érable à sucre, le sapin baumier et l'épinette noire (adapté de Houle et [...] Coups de chaleur Réponses des arbres à la sécheresse Les vagues de chaleur peuvent constituer Certaines caractéristiques physiologiques des arbres peuvent en elles-mêmes des sources de stress minimiser les impacts négatifs de la sécheresse sur leur santé. [...] Des impacts sur la croissance et la production de bois Un des impacts les plus notables de la sécheresse est une diminution de la taille et du nombre de cellules produites dans le cerne annuel, résultant en une diminution de sa croissance.
Author:
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Category : Livres électroniques
Languages : fr
Pages : 20
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Author: Dominique Berteaux
Publisher: PUQ
ISBN: 2760540480
Category : Science
Languages : fr
Pages : 238
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Book Description
Les changements climatiques sont une question environnementale majeure de ce siècle. Afin de comprendre et de prévoir leurs effets sur la biodiversité du Québec, des climatologues, des biologistes, des naturalistes et des gestionnaires de notre patrimoine naturel ont collaboré durant cinq années pour produire cet ouvrage.Ils ont analysé les répartitions de près de 1 000 espèces d’animaux et de plantes et ont tenté d’anticiper les changements potentiels de ces répartitions pour la fin du xxie siècle. En utilisant des approches scientifiques parmi les plus perfectionnées ainsi que des modèles climatiques et des informations sur la biodiversité parmi les plus à jour, ils ont dressé un tableau saisissant des changements profonds qui sont anticipés sur le territoire québécois.Les premiers chapitres présentent avec clarté le patrimoine naturel et les climats du Québec. Le lecteur est ensuite amené, à partir de résultats de modélisation publiés ici pour la première fois, à se projeter dans l’avenir pour entrevoir l’évolution du patrimoine naturel québécois. Les conséquences des recherches sur la gestion des espèces, des aires protégées et des écosystèmes sont enfin exposées.Les biologistes, les naturalistes, les techniciens en écologie, les gestionnaires de la faune et des parcs, les ingénieurs et les techniciens forestiers, les professionnels et les militants de la conservation de la nature, les décideurs, ainsi que les étudiants et enseignants en biologie trouveront tous dans ce livre la matière à d’intenses réflexions. Les points à retenir sont résumés, des dizaines de cartes en couleur sont présentées et de multiples figures illustrent les messages importants. Un site Web présente des milliers de cartes complémentaires et permet de télécharger toutes les figures du livre.
Author: Deryle Lonsdale
Publisher: Routledge
ISBN: 1135973504
Category : Foreign Language Study
Languages : en
Pages : 974
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Book Description
A Frequency Dictionary of French is an invaluable tool for all learners of French, providing a list of the 5000 most frequently used words in the language. Based on a 23-million-word corpus of French which includes written and spoken material both from France and overseas, this dictionary provides the user with detailed information for each of the 5000 entries, including English equivalents, a sample sentence, its English translation, usage statistics, and an indication of register variation. Users can access the top 5000 words either through the main frequency listing or through an alphabetical index. Throughout the frequency listing there are thematically-organized lists of the top words from a variety of key topics such as sports, weather, clothing, and family terms. An engaging and highly useful resource, the Frequency Dictionary of French will enable students of all levels to get the most out of their study of French vocabulary. Former CD content is now available to access at www.routledge.com/9780415775311 as support material. Designed for use by corpus and computational linguists it provides the full text in a format that researchers can process and turn into suitable lists for their own research work. Deryle Lonsdale is Associate Professor in the Linguistics and English Language Department at Brigham Young University (Provo, Utah). Yvon Le Bras is Associate Professor of French and Department Chair of the French and Italian Department at Brigham Young University (Provo, Utah).
Author: Jennifer Caroline Jenkins
Publisher:
ISBN:
Category : Forest biomass
Languages : en
Pages : 52
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Book Description
A database consisting of 2,640 equations compiled from the literature for predicting the biomass of trees and tree components from diameter measurements of species found in North America. Bibliographic information, geographic locations, diameter limits, diameter and biomass units, equation forms, statistical errors, and coefficients are provided for each equation, along with examples of how to use the database. The CD-ROM included with the paper version of this publication contains the complete database (Table 3) in spreadsheet format (Microsoft Excel 2002® with Windows XP®). The database files can also be viewed in both spreadsheet and pdf formats by directing your browser to the Global Change page at http://www.fs.fed.us/ne/global/pubs/books/index.html
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Category : Callitropsis nootkatensis
Languages : en
Pages : 22
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Author: Carol A. Padden
Publisher: Harvard University Press
ISBN: 0674283171
Category : Social Science
Languages : en
Pages : 148
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Book Description
Written by authors who are themselves Deaf, this unique book illuminates the life and culture of Deaf people from the inside, through their everyday talk, their shared myths, their art and performances, and the lessons they teach one another. Carol Padden and Tom Humphries employ the capitalized "Deaf" to refer to deaf people who share a natural language—American Sign Language (ASL—and a complex culture, historically created and actively transmitted across generations. Signed languages have traditionally been considered to be simply sets of gestures rather than natural languages. This mistaken belief, fostered by hearing people’s cultural views, has had tragic consequences for the education of deaf children; generations of children have attended schools in which they were forbidden to use a signed language. For Deaf people, as Padden and Humphries make clear, their signed language is life-giving, and is at the center of a rich cultural heritage. The tension between Deaf people’s views of themselves and the way the hearing world views them finds its way into their stories, which include tales about their origins and the characteristics they consider necessary for their existence and survival. Deaf in America includes folktales, accounts of old home movies, jokes, reminiscences, and translations of signed poems and modern signed performances. The authors introduce new material that has never before been published and also offer translations that capture as closely as possible the richness of the original material in ASL. Deaf in America will be of great interest to those interested in culture and language as well as to Deaf people and those who work with deaf children and Deaf people.
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ISBN: 9781433820632
Category : Psychoanalysis
Languages : en
Pages :
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Book Description
"In Relational Psychodynamic Psychotherapy Supervision, guest expert supervisor, Dr. Joan E. Sarnat, demonstrates and discusses this approach to supervision. The goal of relational psychodynamic supervision is to create a more experiential, participatory, and relationship-focused form of supervision, one that not only provides usable psychotherapeutic knowledge and skills, but also facilitates the emotional and relational development that is essential to becoming an effective psychodynamic psychotherapist. In this video, Sarnat and her supervisee engage in a supervisory session, and host Dr. Hanna Levenson interviews them about their work together, exploring the constructs of this model and the nature of the supervisory relationship. In the session, Dr. Sarnat's supervisee conveys that she is frustrated by how her patient is discounting her during the termination phase of therapy. By becoming aware of and working with her own feelings of frustration within the session, Dr. Sarnat demonstrates the art of using a reenactment to help the supervisee deepen her awareness and thereby facilitate the therapy."--
Author: A. Surjalal Sharma
Publisher: John Wiley & Sons
ISBN: 1118671848
Category : Science
Languages : en
Pages : 693
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Book Description
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 196. Extreme Events and Natural Hazards: The Complexity Perspective examines recent developments in complexity science that provide a new approach to understanding extreme events. This understanding is critical to the development of strategies for the prediction of natural hazards and mitigation of their adverse consequences. The volume is a comprehensive collection of current developments in the understanding of extreme events. The following critical areas are highlighted: understanding extreme events, natural hazard prediction and development of mitigation strategies, recent developments in complexity science, global change and how it relates to extreme events, and policy sciences and perspective. With its overarching theme, Extreme Events and Natural Hazards will be of interest and relevance to scientists interested in nonlinear geophysics, natural hazards, atmospheric science, hydrology, oceanography, tectonics, and space weather.
