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A comparison of mortality rates between top height trees and average site trees / Daniel Mailly in Annals of Forest Science, Vol 66 n° 2 (march 2009)
[article]
Titre : A comparison of mortality rates between top height trees and average site trees Titre original : Étude comparative des taux de mortalité entre les arbres dominants et les arbres indicateurs moyens de la station Type de document : Article/Communication Auteurs : Daniel Mailly, Auteur ; Mélanie Gaudreault, Auteur ; Geneviève Picher, Auteur ; Isabelle Auger, Auteur ; David Pothier, Auteur Année de publication : 2009 Article en page(s) : n° 202 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] arbre dominant
[Termes IGN] dépérissement
[Termes IGN] indicateur biologique
[Termes IGN] mortalité
[Termes IGN] Québec (Canada)Résumé : (auteur) Although comparisons between methods of selecting trees for site index estimates are well documented in the literature, little is known on mortality rates of different canopy tree cohorts used for that purpose. This study was initiated to test the hypothesis that the mortality rates of top height trees are lower than those of codominants only or a combination of codominant and dominant trees. To test this hypothesis, we used records from a network of permanent sample plots in Québec and studied the fate of different cohorts of site trees for five different species. Our results did not show clear evidence of lower mortality rates for top height trees. Instead we found that depending on the species, top height trees have lower (Populus tremuloides, Pinus banksiana), higher (Picea mariana, Abies balsamea) or equal mortality rates (Betula papyrifera) than codominant trees or codominant and dominant trees combined. These results suggest a tendency for shade intolerant species to maintain lower top height tree mortality rates over time when compared to shade tolerant species. In the latter case, it is also shown that spruce budworm epidemics (Choristoneura fumiferana) did not change the pattern of mortality rates of site trees of A. balsamea. Numéro de notice : A2009-713 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2008084 Date de publication en ligne : 28/02/2009 En ligne : https://doi.org/10.1051/forest/2008084 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71942
in Annals of Forest Science > Vol 66 n° 2 (march 2009) . - n° 202[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000317 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Density dependence on tree survival in an old-growth temperate forest in northeastern China / Jian Zhang in Annals of Forest Science, Vol 66 n° 2 (march 2009)
[article]
Titre : Density dependence on tree survival in an old-growth temperate forest in northeastern China Titre original : La survie des arbres dépend de la densité dans une ancienne forêt tempérée du nord-est de la Chine Type de document : Article/Communication Auteurs : Jian Zhang, Auteur ; Zhanqing Hao, Auteur ; I.-Fang Sun, Auteur ; Bo Song, Auteur ; Ji Ye, Auteur ; Buhang Li, Auteur ; Xugao Wang, Auteur Année de publication : 2009 Article en page(s) : n° 204 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] Chine
[Termes IGN] densité de la végétation
[Termes IGN] dépérissement
[Termes IGN] étage de végétation
[Termes IGN] forêt tempérée
[Termes IGN] mortalité
[Termes IGN] structure spatialeRésumé : (auteur) Density dependence is a major mechanism for shaping plant communities. However, its role in regulating diverse, mixed natural tree communities is less certain. In this study we investigated density-dependent effects in a large-scale (25 ha) old-growth temperate forest in northeastern China. Spatial patterns of neighborhood distribution in the plot were analyzed using various methods for inferring competition, including (1) pair correlation function to determine spatial patterns of pre-mortality and post-mortality and (2) neighborhood analysis of individuals to examine the extent to which tree survival is correlated with other covariates. Results showed that, for common species, 3 of 5 canopy species and 3 of 8 midstory and understory species were random in mortality. Negative density-dependent mortality was not found when trees reach 1 cm in DBH. There was no significant correlation for canopy species between tree survival and conspecific abundance, but largely positive correlations for midstory and understory species. In contrast, tree survival was found to negatively correlate with conspecific basal area for most species, indicating strong intraspecific competition. No strong interspecific density dependence was found in the forest. Numéro de notice : A2009-715 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2008086 Date de publication en ligne : 28/02/2009 En ligne : https://www.afs-journal.org/articles/forest/abs/2009/02/f08149/f08149.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71944
in Annals of Forest Science > Vol 66 n° 2 (march 2009) . - n° 204[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000317 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Natural stand structures, disturbance regimes and successional dynamics in the Eurasian boreal forests: a review with special reference to Russian studies / Ekaterina Shorohova in Annals of Forest Science, Vol 66 n° 2 (march 2009)
[article]
Titre : Natural stand structures, disturbance regimes and successional dynamics in the Eurasian boreal forests: a review with special reference to Russian studies Titre original : Structure des peuplements, régimes de perturbation et dynamiques de succession dans les forêts boréales eurasiennes: une revue basée sur des travaux russes Type de document : Article/Communication Auteurs : Ekaterina Shorohova, Auteur ; Timo Kuuluvainen, Auteur ; Ahto Kangur, Auteur ; Kalev Jõgiste, Auteur Année de publication : 2009 Article en page(s) : n° 201 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] composition d'un peuplement forestier
[Termes IGN] dynamique de la végétation
[Termes IGN] forêt boréale
[Termes IGN] gestion forestière durable
[Termes IGN] peuplement mélangé
[Termes IGN] structure de la végétationRésumé : (auteur) This review summarizes early stand-scale studies of pristine forest structures, disturbance regimes and successional patterns carried out in boreal Eurasia. We attempt to reveal, characterize and classify stand dynamic types that can be used as templates for nature-based forest management. The studies reviewed demonstrate multiple successional pathways in stand development in all types of pristine forests. All-aged stands driven by small-scale disturbances are formed over successional development of several hundreds of years. This endogenous development can be interrupted by stand-replacing or partial disturbances leading to successions with even-aged or cohort-structured stands, respectively. In Western Europe, the most common disturbances are windthrows, surface fires and fluctuations in moisture regime; in Eastern Europe and Siberia, the most common disturbances are crown and surface fires and insect outbreaks. Type, return interval and severity of disturbances are strongly influenced by the site conditions and successional stage of a stand. Based on characteristics of forest stands and disturbance regime, four main types of pristine boreal forest stand dynamics can be distinguished: (1) even-aged, compositional change dynamics, (2) even-aged, mono-dominant dynamics, (3) cohort dynamics and (4) fine-scale gap dynamics. These types can be mimicked in developing scenarios of ecological sustainable forest management in Eurasian boreal forests. Note de contenu : Bibliogr. Résumés en anglais et français. Numéro de notice : A2009-712 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2008083 Date de publication en ligne : 28/02/2009 En ligne : https://www.afs-journal.org/articles/forest/abs/2009/02/f08266/f08266.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71886
in Annals of Forest Science > Vol 66 n° 2 (march 2009) . - n° 201[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000317 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt n° 21 - 01/03/2009 - Tempête Klaus du 24 janvier 2009 (Bulletin de L'if) / Inventaire forestier national (1958 - 2011)
[n° ou bulletin]
Titre : n° 21 - 01/03/2009 - Tempête Klaus du 24 janvier 2009 Type de document : Périodique Auteurs : Inventaire forestier national (1958 - 2011), Auteur Année de publication : 2009 Importance : 8 p. Langues : Français (fre) Descripteur : [Vedettes matières IGN] Végétation Numéro de notice : 162-0901 Affiliation des auteurs : IFN (1958-2011) Thématique : FORET Nature : Numéro de périodique En ligne : http://www.ign.fr/publications-de-l-ign/Institut/Publications/IF/21/IF_21.html Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=15791 [n° ou bulletin]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 162-09011 RAB Revue Centre de documentation En réserve L003 Disponible Documents numériques
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IF 21Adobe Acrobat PDF Wildfire changes the spatial pattern of soil nutrient availability in Pinus canariensis forests / Alexandra Rodríguez in Annals of Forest Science, Vol 66 n° 2 (march 2009)
[article]
Titre : Wildfire changes the spatial pattern of soil nutrient availability in Pinus canariensis forests Titre original : Un incendie modifie la configuration spatiale de la disponibilité des éléments nutritifs dans les sols de forêts de Pinus canariensis Type de document : Article/Communication Auteurs : Alexandra Rodríguez, Auteur ; Jorge Durán, Auteur ; José María Fernández-Palacios, Auteur ; Antonio Gallardo, Auteur Année de publication : 2009 Article en page(s) : n° 210 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] incendie de forêt
[Termes IGN] nutriment végétal
[Termes IGN] Pinus canariensis
[Termes IGN] positionnement absolu
[Termes IGN] sol forestierRésumé : (auteur) Soil resources are heterogeneously distributed in terrestrial plant communities. This heterogeneity is important because it determines the availability of local soil resources. A forest fire may change the spatial distribution of soil nutrients, affecting nutrition and survival of colonizing plants. However, specific information on the effects of ecosystem disturbance on the spatial distribution of soil resources is scarce. We hypothesized that, on a short-term basis, wildfire would change the spatial patterns of soil N and P availability. To test this hypothesis, we selected two Pinus canariensis forests burned in 2005 and 2000, respectively, and a third forest that was unburned since at least 1990 (unburned). We incubated ionic exchange membranes (IEMs) in replicated plots to estimate soil N and P availability and characterized the spatial pattern using SADIE (Spatial Analysis by Distance Indices). Mineral N, NO3-N and PO4-P availability, and aggregation and cluster indices for all nutrients were higher in the 2005 wildfire plots than in the 2000 wildfire and unburned plots. Our results suggest that surviving plants or new individuals becoming established in a burned area would find higher soil resources, but also higher small-scale heterogeneity in nutrients, which may have a major impact on the performance of individual plants and on the forest structure and dynamics. Numéro de notice : A2009-721 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2008092 Date de publication en ligne : 28/02/2009 En ligne : https://www.afs-journal.org/articles/forest/abs/2009/02/f08300/f08300.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71950
in Annals of Forest Science > Vol 66 n° 2 (march 2009) . - n° 210[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000317 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Leaf water status and stem xylem flux in relation to soil drought in five temperate broad-leaved tree species with contrasting water use strategies / Paul Köcher in Annals of Forest Science, Vol 66 n° 1 (January - February 2009)PermalinkLa forêt redécouverte / Claude Leroy (2009)PermalinkLes pathogènes des fruitiers forestiers / Cl.-M. Favre in Forêt entreprise, n° 184 (2009/1)PermalinkFrost damage in Pinus sylvestris L. stems assessed by chlorophyll fluorescence in cortical bark chlorenchyma / José Javier Peguero-Pina in Annals of Forest Science, Vol 65 n° 8 (December 2008)PermalinkImpact of nutrient removal through harvesting on the sustainability of the boreal forest / Louis Duchesne in Ecological Applications, vol 18 n° 7 (October 2008)PermalinkA Linking Test that establishes if groundwater recharge can be determined by optimising vegetation parameters against soil moisture / Joseph Alexander Paul Pollacco in Annals of Forest Science, Vol 65 n° 7 (October - November 2008)PermalinkA new bioclimatic model calibrated with vegetation for Mediterranean forest areas / Michel Vennetier in Annals of Forest Science, Vol 65 n° 7 (October - November 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)PermalinkInteractive responses of Quercus suber L. seedlings to light and mild water stress: effects on morphology and gas exchange traits / Jaime Puértolas in Annals of Forest Science, Vol 65 n° 6 (September 2008)Permalinkn° 20 - 01/09/2008 - Nouvelle cartographie forestière : De la production à l’utilisation (Bulletin de L'if) / Inventaire forestier national (1958 - 2011)Permalink