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Basic features of a group selection system modification aimed to sustain regular-uneven-aged stand structure / Roman Efremov in Annals of forest research, vol 52 n° 1 (January 2009)
[article]
Titre : Basic features of a group selection system modification aimed to sustain regular-uneven-aged stand structure Type de document : Article/Communication Auteurs : Roman Efremov, Auteur Année de publication : 2009 Article en page(s) : p. 143-150 Note générale : Bibliogr. Langues : Anglais (eng) Descripteur : [Termes IGN] Fagus sylvatica
[Termes IGN] forêt inéquienne
[Termes IGN] structure d'un peuplement forestier
[Vedettes matières IGN] BotaniqueRésumé : (Auteur) "Proposed modification of group selection system is aimed to successfully combine its elements with biological peculiarities (such as sympodial growth, distinct heliotropism and crown growth plasticity, heavy seeds and difficult dissemination, etc.) of shade-intolerant and mid-tolerant tree species, stands of which may be managed under the same system. Principles, on which the modification is based, are: (i) application of well founded extended rotations in order to increase the proportion of tree groups above 90-100 years age in the stand, where upon the height increment and crown side spread by most of the main tree species in Bulgary drop to considerably lower level, and (ii) optimum systematic spatial positioning of openings in the stand canopy (and tree groups respectively) over the stand area, so that new gaps created by consecutive selection cuttings adjoin to a minimum number of middle aged (40-80 y. age) tree groups. Such clumps of vigorous trees with high growth rates, heliotropism and plasticity carry certain risks of spoiling the target regular-unevenaged stand structure. Factors of significance are discussed by determining the rotation age, size of gaps opened in the stand canopy, selection cutting cycle, a regularuneven- aged stand structure design and the minimum area that enables realisation of full selection system cycle. Definitions and determination of selection system elements in their mutual connections are presented in consecutive steps when designing a particular application of group selection system for exemplary pure stand of common beech (Fagus sylvatica L.). By the proposed group selection system modification the amount of combinations of various factors having impact upon processes in the tree groups are diminished compared to that by random spatial arrangement of the gaps over the stand area. Silvicultural activities aimed to maintain a stable unevenaged stand structures are thus getting more predictable, easier to schedule and efficient." Numéro de notice : IFN_5803 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans En ligne : http://www.editurasilvica.ro/afr/52/1/14_Efremov.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=73515
in Annals of forest research > vol 52 n° 1 (January 2009) . - p. 143-150[article]Documents numériques
en open access
Basic features of a group selection system modification...Adobe Acrobat PDF Biochemical peculiarity of in vitro morphogenesis under conservation strategy of Ruscus aculeatus L. / Cristian Banciu in Annals of forest research, vol 52 n° 1 (January 2009)
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Titre : Biochemical peculiarity of in vitro morphogenesis under conservation strategy of Ruscus aculeatus L. Type de document : Article/Communication Auteurs : Cristian Banciu, Auteur ; Monica Elena Mitoi, Auteur ; Aurelia Brezeanu, Auteur Année de publication : 2009 Article en page(s) : p. 109-115 Note générale : Bibliogr. Langues : Anglais (eng) Descripteur : [Termes IGN] conservation de la flore
[Termes IGN] microbouturage
[Termes IGN] morphogenèse
[Termes IGN] Ruscus aculeatusRésumé : (Auteur) "The present study is part of the actual concerns in biodiversity conservation of endangered angyosperm species from the Comana Natural Park. Ruscus aculeatus L. species is protected both at national and European level (trough Habitats Directive of EU and Bern Convention). The aspects of in vitro morphogenesis through all the stages from inoculation, multiplication to rooting and acclimatization have been studied. In order to long term conservation and multiplication or to exploit somaclonal variation induced by in vitro technique is required the identification of some biochemical or molecular markers for fast evaluation of regenerants. In this respect, genetic stability or variability of Ruscus aculeatus plants collected from three populations and regenerants obtained in vitro culture was estimated by electrophoretical methods. Therefore, zymograms of different enzymes as esterase, acid and alkaline phosphatase, glutamate-oxaloacetate transferase, malate dehydrogenase and peroxidase were analyzed. The expression of esterases, phosphatases, malate dehydrogenases displayed changes in correlation with growth condition, while the peroxidases pattern was more stabile in natural population as well as in vitro regenerated plantlet." Numéro de notice : IFN_5799 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE Nature : Article DOI : sans En ligne : http://www.editurasilvica.ro/afr/52/1/10_Banciu.pdf Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=73511
in Annals of forest research > vol 52 n° 1 (January 2009) . - p. 109-115[article]Documents numériques
en open access
Biochemical peculiarity of in vitro morphogenesis...Adobe Acrobat PDF Bud burst and flowering phenology in a mixed oak forest from Eastern Romania / Ecaterina Nicoleta Chesnoiu ; Nicolae Sofletea ; Alexandru Lucian Curtu ; Alin Toader ; Raul Radu ; Mihai Enescu in Annals of forest research, vol 52 n° 1 (January 2009)
[article]
Titre : Bud burst and flowering phenology in a mixed oak forest from Eastern Romania Type de document : Article/Communication Auteurs : Ecaterina Nicoleta Chesnoiu, Auteur ; Nicolae Sofletea, Auteur ; Alexandru Lucian Curtu, Auteur ; Alin Toader, Auteur ; Raul Radu, Auteur ; Mihai Enescu, Auteur Année de publication : 2009 Article en page(s) : p. 199-206 Note générale : Bibliogr Langues : Anglais (eng) Descripteur : [Termes IGN] phénologie
[Termes IGN] Quercus (genre)
[Termes IGN] RoumanieRésumé : (Auteur) "Bud burst and flowering phenology have been observed in year 2008 in a natural white oak species complex situated in eastern Romania. A total of 300 mature individuals was mapped and identified based on leaf morphology. The community consists of four oak species: Quercus pedunculiflora, Q. robur, Q. pubescens and Q. petraea. A set of 28 individuals could not be unambiguously classified to one or another species. Data on bud burst showed a normal distribution and the differences among species were small. The "very late" flushing was recorded on 15th of April, three weeks later when compared to early flushing individuals. The time period between the bud burst and the complete development of leaves was nearly the same in all oak species, varying on average, between 18.4 and 20.6 days. The spatial distribution of phenological groups within the complex appears to be non-randomly, because in many parts of the study plot exist groups in which most of the trees belong to the same phenological category. Our results indicate an overlap in flowering time for all oak species which occur in the area. The data support the hypothesis that interspecific gene flow is possible between closely related oak species." Numéro de notice : IFN_5840 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans En ligne : http://www.editurasilvica.ro/afr/52/1/20_Chesnoiu.pdf Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=73541
in Annals of forest research > vol 52 n° 1 (January 2009) . - p. 199-206[article]Documents numériques
en open access
Bud burst and flowering phenology in a mixed oak forest...Adobe Acrobat PDF Cercetari privind efectele desimii la instalare si ale primei curatiri asupra cresterii arborilor de nuc negru (Juglans nigra L.) / Valeriu-Norocel Nicolescu in Revista Padurilor, vol 124 n° 1 (1/2009)
[article]
Titre : Cercetari privind efectele desimii la instalare si ale primei curatiri asupra cresterii arborilor de nuc negru (Juglans nigra L.) Titre original : Research on the effects of initial spacing and first cleaning-respacing on the growth of black walnut (Juglans nigra L.) trees = Recherches concernant les effets de l'épaisseur à la création du peuplement ainsi que du premier nettoiement sur la croissance de Juglans nigra Type de document : Article/Communication Auteurs : Valeriu-Norocel Nicolescu, Auteur ; Johann Kruch, Auteur Année de publication : 2009 Article en page(s) : p. 25-32 Note générale : Bibliogr. Résumé en anglais Langues : Roumain (rum) Descripteur : [Termes IGN] croissance des arbres
[Termes IGN] densité de la végétation
[Termes IGN] Juglans nigra
[Termes IGN] qualité du bois
[Vedettes matières IGN] SylvicultureNuméro de notice : IFN_4896 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72957
in Revista Padurilor > vol 124 n° 1 (1/2009) . - p. 25-32[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000717 PER Revue Nogent-sur-Vernisson Archives périodiques Exclu du prêt Conservarea ex situ a resurselor genetice de plop negru (Populus nigra L.) utilizând culturile un vitro / Lucia Ionita in Revista Padurilor, vol 124 n° 1 (1/2009)
[article]
Titre : Conservarea ex situ a resurselor genetice de plop negru (Populus nigra L.) utilizând culturile un vitro Titre original : Ex situ preservation of black poplar (Populus nigra L.) genetic resources using in vitro volume = Conservation ex situ des ressources génétiques du peuplier noir (Populus nigra L.) à l'aide des cultures in vitro Type de document : Article/Communication Auteurs : Lucia Ionita, Auteur Année de publication : 2009 Article en page(s) : p. 5-9 Note générale : Résumé en anglais Langues : Roumain (rum) Descripteur : [Termes IGN] biotechnologie
[Termes IGN] génétique forestière
[Termes IGN] microbouturage
[Termes IGN] Populus nigraNuméro de notice : IFN_4893 Affiliation des auteurs : non IGN Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72954
in Revista Padurilor > vol 124 n° 1 (1/2009) . - p. 5-9[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000717 PER Revue Nogent-sur-Vernisson Archives périodiques Exclu du prêt Diversity and primary productivity of hill beech forests from Doftana Valley (Romanian Subcarpathians) / Mihaela Pauca-Comanescu in Annals of forest research, vol 52 n° 1 (January 2009)PermalinkÉvaluation du préjudice monétaire subi par les propriétaires forestiers suite à la tempête Klaus : le cas des dégâts subis par le Pin maritime / Sandrine Costa in Revue forestière française, vol 61 n° 1 (janvier - février 2009)PermalinkLa forêt face aux tempêtes / Yves Birot (2009)PermalinkLes frênaies thermophiles à Fraxinus angustifolia, un habitat d’intérêt communautaire (UE 91B0) du sud de la France : Présentation et synthèse à l’échelle du domaine méditerranéen / Farid Bensettiti (2009)PermalinkGérer l'alisier dans les peuplements mélangés / Georg Josef Wilhelm in Forêt entreprise, n° 184 (2009/1)PermalinkInfluence of microstructured carbon materials on Sequoia sempervirens (D. Don.) Endl. in vitro culture / Raluca Stoiculescu in Annals of forest research, vol 52 n° 1 (January 2009)PermalinkIps duplicatus (Coleoptera, Curculionidae, Scolytinae) - un daunator important al molidului din afara arealului natural de vegetatie / Nicolai Olenici ; Mihai-Leonard Duduman ; Cezar Tulbure ; Cristian Rotariu in Revista Padurilor, vol 124 n° 1 (1/2009)PermalinkLa plantation par points d'appui : une solution pour reconstituer ou enrichir les chênaies dépérissantes / Jean-Paul Nebout in Forêt entreprise, n° 184 (2009/1)PermalinkSpécification et développement d'une méthode intégrée de cartographie du combustible à partir d'images téléacquises (dans le cadre du projet Fireparadox) / G. El-Amine (2009)PermalinkThe establishment of an in vitro gene bank in Dianthus spiculifolius Schur and D. glacialis ssp. gelidus (Schott Nym. et Kotschy) Tutin: I. The initiation of a tissue collection and the characterization of the cultures in minimal growth conditions / Mihaela Holobiuc in Annals of forest research, vol 52 n° 1 (January 2009)PermalinkUsing pixel and object based IKONOS image analysis for studying decay in silver fir stands / Ionut Barnoaiea in Annals of forest research, vol 52 n° 1 (January 2009)PermalinkLéger fléchissement du douglas et de l’épicéa à Saulieu / Pascal Charoy in Le Bois International : l'officiel du bois [édition verte], vol 2008 n° 41 (6 décembre 2008)PermalinkCarbon allocation and morphology of cherrybark oak seedlings and sprouts under three light regimes / Brian Roy Lockhart in Annals of Forest Science, Vol 65 n° 8 (December 2008)PermalinkLa chênaie pédonculée à Molinie, fréquente en forêt mais rare pour Natura 2000 / Marc Laporte in Notre forêt, n° 45 (décembre 2008)PermalinkCollection des résumés des posters in Rendez-vous techniques, Hors-série n° 4 (2008)PermalinkEvaluation of the visual stress grading standard on French Spruce (Picea excelsa) and Douglas-fir (Pseudotsuga menziesii) sawn timber / Guillaume Roblot in Annals of Forest Science, Vol 65 n° 8 (December 2008)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)PermalinkInterprétation climatique et bioclimatique des variations interannuelles de croissance des arbres / François Lebourgeois in Rendez-vous techniques, Hors-série n° 4 (2008)PermalinkManipulating nutrient and water availability in a maritime pine plantation: effects on growth, production, and biomass allocation at canopy closure / Pierre Trichet in Annals of Forest Science, Vol 65 n° 8 (December 2008)Permalink"Mes peupliers sont mûrs. Dois-je les couper pour replanter ?" / Bruno Jacquet in Notre forêt, n° 45 (décembre 2008)Permalink