Descripteur
Termes IGN > sciences naturelles > sciences de la vie
sciences de la vie
Commentaire :
Sciences biologiques Sciences naturelles >> Spécialistes des sciences de la vie Vie (biologie) >>Terme(s) spécifique(s) : Mycologie Biologie Botanique Sciences de la santé Zoologie Equiv. LCSH : Life sciences |
Documents disponibles dans cette catégorie (2451)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Le classement mécanique des sciages de Douglas désormais possible / Jean-Denis Lanvin in Douglas infos, n° 15 (octobre 2008)
[article]
Titre : Le classement mécanique des sciages de Douglas désormais possible Type de document : Article/Communication Auteurs : Jean-Denis Lanvin, Auteur Année de publication : 2008 Article en page(s) : p. 4-5 Langues : Français (fre) Descripteur : [Termes IGN] bois d'oeuvre
[Termes IGN] Pseudotsuga menziesiiRésumé : L'utilisation du bois dans la construction ne déroge pas à la réglementation européenne (Directive des Produits de Construction) qui veut que chaque élément jouant un rôle structurel, bénéficie d'un marquage (dit "marquage CE"), comprenant en particulier les informations relatives à l'essence, le taux d'humidité, la réaction au feu, la classe de durabilité ainsi que la référence à la classe de résistance mécanique. Numéro de notice : IFN_2417 Affiliation des auteurs : non IGN Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71359
in Douglas infos > n° 15 (octobre 2008) . - p. 4-5[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-DIR-P000227 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Le Douglas : mission construction / Jean-Louis Ferron in Douglas infos, n° 15 (octobre 2008)
[article]
Titre : Le Douglas : mission construction Type de document : Article/Communication Auteurs : Jean-Louis Ferron, Auteur Année de publication : 2008 Article en page(s) : p. 1, p. 3 Langues : Français (fre) Descripteur : [Termes IGN] bois d'oeuvre
[Termes IGN] Pseudotsuga menziesiiRésumé : La production du massif national de Douglas, fruit des investissements réalisés par les forestiers depuis plusieurs décennies, en particulier dans les régions de moyenne montagne du centre du pays, ne cesse de s'affirmer. Un moment dopée - artificiellement - par les conséquences de la tempête de décembre 1999, cette production semble peu à peu retrouver le rythme de croissance constaté au cours des années 90, soit une augmentation moyenne de 5% par an. Numéro de notice : IFN_2416 Affiliation des auteurs : non IGN Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71358
in Douglas infos > n° 15 (octobre 2008) . - p. 1, p. 3[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-DIR-P000227 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Has global change induced divergent trends in radial growth of Pinus sylvestris and Pinus halepensis at their bioclimatic limit? The example of the Sainte-Baume forest (south-east France) / Bruno Vila in Annals of Forest Science, Vol 65 n° 7 (October - November 2008)
[article]
Titre : Has global change induced divergent trends in radial growth of Pinus sylvestris and Pinus halepensis at their bioclimatic limit? The example of the Sainte-Baume forest (south-east France) Titre original : Les changements globaux ont-ils induit des tendances de croissance radiale opposées chez Pinus sylvestris et Pinus halepensis à leur limite bioclimatique ? L'exemple de la forêt de la Sainte-Baume Type de document : Article/Communication Auteurs : Bruno Vila, Auteur ; Michel Vennetier, Auteur ; Christian Ripert, Auteur ; Olivier Chandioux, Auteur ; Eryuan Liang, Auteur ; Frédéric Guibal, Auteur ; Franck Torre, Auteur Année de publication : 2008 Article en page(s) : n° 709 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] croissance des arbres
[Termes IGN] France (administrative)
[Termes IGN] limite bioclimatique
[Termes IGN] Pinus halepensis
[Termes IGN] Pinus sylvestris
[Termes IGN] Sainte-Baume, forêt de la (Bouches-du-Rhône/Var)
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) It is agreed that climate (precipitation and temperature) influences the distribution of plant species. Near the margins of a species' natural range, climate becomes limiting to physiological processes. There, climate change may be expected to have a significant impact on tree growth and the species' ranges may be altered. In order to assess what influence climate change could exert on the distribution of pine species at their margin, radial growth trends in ring-width chronologies over the last century were analysed. In the French Mediterranean area where climate change is characterized by increased temperature, forest plots were selected along an altitudinal transect on the north-facing slope of the Sainte-Baume mountain (Bouches-du-Rhône, France) where the ranges of Pinus sylvestris and Pinus halepensis overlap. Two growth patterns were identified. For P. halepensis, radial growth has increased at all altitudes indicating that climate change has improved growth conditions of this species near the margin of its ecological range. For P. sylvestris, radial growth has increased only at low altitudes and even decreased at high altitudes. It must be deduced that the growth changes observed cannot be generalised either at the species level or at the geographical level and must be interpreted with great caution. Numéro de notice : A2008-691 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest:2008048 Date de publication en ligne : 20/09/2008 En ligne : https://doi.org/10.1051/forest:2008048 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71441
in Annals of Forest Science > Vol 65 n° 7 (October - November 2008) . - n° 709[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-DIR-P000234 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Impact of nutrient removal through harvesting on the sustainability of the boreal forest / Louis Duchesne in Ecological Applications, vol 18 n° 7 (October 2008)
[article]
Titre : Impact of nutrient removal through harvesting on the sustainability of the boreal forest Type de document : Article/Communication Auteurs : Louis Duchesne, Auteur ; Daniel Houle, Auteur Année de publication : 2008 Article en page(s) : pp 1642 - 1651 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] acidification des sols
[Termes IGN] forêt boréale
[Termes IGN] gestion forestière durable
[Termes IGN] nutriment végétal
[Termes IGN] sol acideRésumé : (auteur) The cycling of base cations (K, Ca, Mg, and Na) was investigated in a boreal balsam fir forest (the Lake Laflamme Watershed) between 1999 and 2005. Base cation budgets were calculated for the soil rooting zone that included atmospheric deposition and soil leaching losses, two scenarios of tree uptake (whole-tree and stem-only harvesting), and three scenarios of mineral weathering, leading to six different scenarios. In every scenario there was a net accumulation of Mg within the soil exchangeable reservoir, while Ca accumulated in four scenarios. Potassium was lost in five of the six scenarios. Contrary to Ca and Mg, immobilization of K within tree biomass (69 mol·ha−1·yr−1) was the main pathway of K losses from the soil exchangeable reservoir, being five times higher than losses via soil leaching (14 mol·ha−1·yr−1). The amounts of K contained within the aboveground biomass and the exchangeable soil reservoir were 3.3 kmol/ha and 4.2 kmol/ha, respectively. Whole-tree harvesting may thus remove 44% of the K that is readily available for cycling in the short term, making this forest sensitive to commercial forestry operations. Similar values of annual K uptake as well as a similar distribution of K between tree biomass and soil exchangeable reservoirs at 14 other coniferous sites, distributed throughout the boreal forest of Québec, suggest that the Lake Laflamme Watershed results can be extrapolated to a much larger area. Stem-only harvesting, which would reduce K exports due to biomass removal by 60%, should be used for these types of forest. Numéro de notice : A2008-665 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1890/07-1035.1 En ligne : https://doi.org/10.1890/07-1035.1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=88991
in Ecological Applications > vol 18 n° 7 (October 2008) . - pp 1642 - 1651[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-000244 423 DUC Tiré à part Nogent-sur-Vernisson Bibliothèque Nogent IFN Exclu du prêt Is the spatial distribution of European beech (Fagus sylvatica L.) limited by its potential height growth? / Ingrid Seynave in Journal of Biogeography, vol 35 n° 10 (October 2008)
[article]
Titre : Is the spatial distribution of European beech (Fagus sylvatica L.) limited by its potential height growth? Type de document : Article/Communication Auteurs : Ingrid Seynave, Auteur ; Jean-Claude Gégout, Auteur ; Jean-Christophe Hervé (1961-2017) , Auteur ; Jean-François Dhôte, Auteur Année de publication : 2008 Article en page(s) : pp 1851 - 1862 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] changement climatique
[Termes IGN] distribution spatiale
[Termes IGN] facteur édaphique
[Termes IGN] Fagus sylvatica
[Termes IGN] inventaire forestier national (données France)
[Termes IGN] krigeage
[Termes IGN] régression linéaire
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) Aim : To improve our understanding of species range limits by studying how height growth, a trait related to plant survival, varies throughout the geographic range of Fagus sylvatica L. in France.
Location : The geographic range of beech in France, representing the western area of its European distribution, within which this species exhibits range distribution limits in both plains and mountainous areas.
Methods : A generalized linear regression model was used to link beech growth performance to environmental variables using data from 819 plots of the French National Forest Inventory (IFN) database. This model was applied to predict potential growth on 97,281 IFN plots covering the geographic range of beech in France. A kriging technique was used to interpolate estimated growth potential. Finally, the performance of plot-based predictions of potential growth from the map (i.e. map quality) was evaluated against an independent data set.
Results : The beech growth performance model highlighted the major impact of climate on potential tree growth at a broad spatial scale. The relevant climatic factors were related mainly to spring cold, summer heat, and winter temperatures and rainfall. The study also revealed the predictive power of soil parameters, which explained a large proportion of the variation in potential beech growth (c. 30%). Analyses of height growth patterns near the boundary of the species range in France showed that the limit only partly coincides with the growth decline caused by climatic and soil factors. Along parts of the range limit, the predicted potential for growth was high, suggesting that in these areas the limit of the range could be explained by other factors, such as competition or constraints on reproduction.
Main conclusions : The spatial variation in the potential height growth of Fagus sylvatica can be explained by environmental factors and is partly correlated with its regional range limits. By identifying areas where growth potential constrains the geographic range of species, environmental growth models can help to improve our knowledge of the spatial drivers of species geographic range limits and shed light on their response to future environmental changes.Numéro de notice : A2008-664 Affiliation des auteurs : IFN+Ext (1958-2011) Thématique : FORET Nature : Article DOI : 10.1111/j.1365-2699.2008.01930.x En ligne : http://doi.org/10.1111/j.1365-2699.2008.01930.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=87106
in Journal of Biogeography > vol 35 n° 10 (October 2008) . - pp 1851 - 1862[article]A new bioclimatic model calibrated with vegetation for Mediterranean forest areas / Michel Vennetier in Annals of Forest Science, Vol 65 n° 7 (October - November 2008)PermalinkA quantitative assessment of the ecological value of sycamore maple habitats in the French Alps / Yoan Paillet in Annals of Forest Science, Vol 65 n° 7 (October - November 2008)PermalinkTen years of fluxes and stand growth in a young beech forest at Hesse, North-eastern France / André Granier in Annals of Forest Science, Vol 65 n° 7 (October - November 2008)PermalinkThe compact polarimetry alternative for spaceborne SAR at low frequency / P. Dubois-Fernandez in IEEE Transactions on geoscience and remote sensing, vol 46 n° 10 Tome 2 (October 2008)PermalinkUltrasonic tomography of green wood using a non-parametric imaging algorithm with reflected waves / Loïc Brancheriau in Annals of Forest Science, Vol 65 n° 7 (October - November 2008)Permalink2007 : la forêt au coeur des discussions sur le changement climatique / Marianne Rubio in Rendez-vous techniques, n° 20 (mai 2008)PermalinkLes cloisonnements sylvicoles ont-ils un effet significatif sur la forme des tiges de hêtre ? / François Conrard in Rendez-vous techniques, n° 20 (mai 2008)PermalinkForêt et cycle du carbone / Marianne Rubio in Rendez-vous techniques, n° 20 (mai 2008)PermalinkLa forêt et la lutte contre le changement climatique / Marianne Rubio in Rendez-vous techniques, n° 20 (mai 2008)PermalinkLes forêts, des pompes à carbone efficaces ? / Jean-Luc Peyron in Rendez-vous techniques, n° 20 (mai 2008)Permalink