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Tree and stand level estimations of Abies alba Mill. aboveground biomass / Andrzej M. Jagodzinski in Annals of Forest Science, vol 76 n° 2 (June 2019)
[article]
Titre : Tree and stand level estimations of Abies alba Mill. aboveground biomass Type de document : Article/Communication Auteurs : Andrzej M. Jagodzinski, Auteur ; Marcin K. Dyderski, Auteur ; et al., Auteur Année de publication : 2019 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Abies alba
[Termes IGN] biomasse aérienne
[Termes IGN] inventaire forestier (techniques et méthodes)
[Termes IGN] modélisation
[Termes IGN] Pologne
[Termes IGN] puits de carbone
[Termes IGN] volume en bois
[Vedettes matières IGN] Inventaire forestierRésumé : (Auteur) Context : Among European forest-forming tree species with high economic and ecological significance, Abies alba Mill. is the least characterized in terms of biomass production.
Aims : To provide a comprehensive set of tree- and stand-level models for A. alba biomass and carbon stock. We hypothesized that (among tree stand characteristics) volume will be the best predictor of tree stand biomass.
Methods : We studied a chronosequence of 12 A. alba tree stands in southern Poland (8–115 years old). We measured tree stand structures, and we destructively sampled aboveground biomass of 96 sample trees (0.0–63.9 cm diameter at breast height). We provided tree-level models, biomass conversion and expansion factors (BCEFs) and biomass models based on forest stand characteristics.
Results : We developed general and site-specific tree-level biomass models. For stand-level models, we found that the best predictor of biomass was stand volume, while the worst were stand basal area and density.
Conclusion : Our models performed better than other published models, allowing for more reliable biomass predictions. Models based on volume are useful in biomass predictions and may be used in large-scale inventories.Numéro de notice : A2019-181 Affiliation des auteurs : non IGN Thématique : FORET/MATHEMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : doi.org/10.1007/s13595-019-0842-y Date de publication en ligne : 15/05/2019 En ligne : https://doi.org/10.1007/s13595-019-0842-y Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92701
in Annals of Forest Science > vol 76 n° 2 (June 2019)[article]Bayesian calibration of a carbon balance model PREBAS using data from permanent growth experiments and national forest inventory / Francesco Minunno in Forest ecology and management, vol 440 (15 May 2019)
[article]
Titre : Bayesian calibration of a carbon balance model PREBAS using data from permanent growth experiments and national forest inventory Type de document : Article/Communication Auteurs : Francesco Minunno, Auteur ; Mikko Peltoniemi, Auteur ; Sanna Härkönen, Auteur ; et al., Auteur Année de publication : 2019 Article en page(s) : pp 208-257 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] assimilation des données
[Termes IGN] Betula pendula
[Termes IGN] bilan du carbone
[Termes IGN] bois sur pied
[Termes IGN] changement climatique
[Termes IGN] croissance des arbres
[Termes IGN] diamètre à hauteur de poitrine
[Termes IGN] estimation bayesienne
[Termes IGN] étalonnage de modèle
[Termes IGN] Finlande
[Termes IGN] gestion forestière
[Termes IGN] hauteur à la base du houppier
[Termes IGN] hauteur des arbres
[Termes IGN] inventaire forestier étranger (données)
[Termes IGN] modèle de croissance végétale
[Termes IGN] modèle de simulation
[Termes IGN] modélisation de la forêt
[Termes IGN] Picea abies
[Termes IGN] Pinus sylvestris
[Vedettes matières IGN] Inventaire forestierRésumé : (auteur) Policy-relevant forest models must be environment and management sensitive and provide unbiased estimates of predicted variables over their intended areas of application. While empirical models derive their structure and parameters from representative data sets, process-based model (PBM) parameters should be evaluated in ranges that have a biological meaning independently of output data. At the same time PBMs should be calibrated against observations in order to obtain unbiased estimates and an understanding of their predictive capability. By means of model data assimilation, we Bayesian calibrated a forest model (PREBAS) using an extensive dataset that covered a wide range of climatic conditions, species composition and management practices. PREBAS was calibrated for three species in Finland: Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies [L.] H. Karst.) and Silver birch (Betula pendula L.). Data assimilation was strongly effective in reducing the uncertainty of PREBAS parameters and predictions. A country-generic calibration showed robust performances in predicting forest variables and the results were consistent with yield tables and national forest statistics. The posterior predictive uncertainty of the model was mainly influenced by the uncertainty of the structural and measurement error. Numéro de notice : A2019-486 Affiliation des auteurs : non IGN Thématique : FORET/MATHEMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.foreco.2019.02.041 Date de publication en ligne : 20/03/2019 En ligne : https://doi.org/10.1016/j.foreco.2019.02.041 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93666
in Forest ecology and management > vol 440 (15 May 2019) . - pp 208-257[article]Model-based investigation on the effects of spatial evenness, and size selection in thinning of Picea abies stands / Peter Fransson in Scandinavian journal of forest research, vol 34 n° 3 (May 2019)
[article]
Titre : Model-based investigation on the effects of spatial evenness, and size selection in thinning of Picea abies stands Type de document : Article/Communication Auteurs : Peter Fransson, Auteur ; Urban Nilsson, Auteur ; Ola Lindroos, Auteur ; et al., Auteur Année de publication : 2019 Article en page(s) : pp 189 - 199 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] distribution spatiale
[Termes IGN] éclaircie (sylviculture)
[Termes IGN] gestion forestière durable
[Termes IGN] modèle de croissance végétale
[Termes IGN] modèle de simulation
[Termes IGN] peuplement forestier
[Termes IGN] Picea abies
[Termes IGN] Suède
[Termes IGN] surface terrière
[Vedettes matières IGN] SylvicultureRésumé : (auteur) Size and spatial distribution of trees are important for forest stand growth, but the extent to which it matters in thinning operations, in terms of wood production and stand economy, has rarely been documented. Here we investigate how the choice of spatial evenness and tree-size distribution of residual trees impacts wood production and stand economy. A spatially explicit individual-based growth model was used, in conjunction with empirical cost functions for harvesting and forwarding, to calculate net production and net present value for different thinning operations in Norway spruce stands in Northern Sweden. The in silico thinning operations were defined by three variables: (1) spatial evenness after thinning, (2) tree size preference for harvesting, and (3) basal area reduction. We found that thinning that increases spatial evenness increases net production and net present value by around 2.0%, compared to the worst case. When changing the spatial evenness in conjunction with size preference we could observe an improvement of the net production and net present value up to 8.0%. The magnitude of impact differed greatly between the stands (from 1.7% to 8.0%) and was highest in the stand with the lowest stem density. Numéro de notice : A2019-376 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1080/02827581.2019.1577914 Date de publication en ligne : 17/02/2019 En ligne : https://doi.org/10.1080/02827581.2019.1577914 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93432
in Scandinavian journal of forest research > vol 34 n° 3 (May 2019) . - pp 189 - 199[article]De l’origine des Pins de montagne européens / Renaud Cantegrel in Revue forestière française, vol 71 n° 3 (2019)
[article]
Titre : De l’origine des Pins de montagne européens Type de document : Article/Communication Auteurs : Renaud Cantegrel, Auteur Année de publication : 2019 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] biodiversité végétale
[Termes IGN] changement climatique
[Termes IGN] ère tertiaire
[Termes IGN] forêt alpestre
[Termes IGN] génétique forestière
[Termes IGN] Pinus mugo subsp. uncinata
[Termes IGN] Pinus mugo Turra
[Termes IGN] Pinus sylvestris
[Termes IGN] taxinomie
[Termes IGN] tourbière
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) Sur la base d’une abondante revue bibliographique, l’auteur ébauche les séquences évolutives des Pins sauvages européens (Pinus sylvestris et Pins de montagne) au cours des dernières périodes du Cénozoïque. Il en déduit la vraisemblance d’une divergence récente entre Pinus uncinata et Pinus mughus, n’excédant pas 3 Ma bp, et ses investigations de terrain le conduisent à différencier les deux espèces autant par leur destinée écogéographique que par leur autécologie. Sous la pression des bouleversements climatiques subis, et particulièrement en réponse aux migrations forcées par les glaciations européennes depuis la fin de l’ère tertiaire, l’introgression entre leurs populations sympatriques génère une série de taxons intermédiaires dont l’ensemble constitue le complexe des Pins de montagne. Le rôle du Pin sylvestre est souligné par son apport génétique décisif dans l’organisation de la biodiversité au sein du complexe spécifique. Numéro de notice : A2020-219 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.4267/2042/70704 En ligne : https://doi.org/10.4267/2042/70704 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94913
in Revue forestière française > vol 71 n° 3 (2019)[article]Analyse phytosociologique et phytoécologique des formations forestières à pin laricio de Corse (Pinus nigra J.F. Arnold subsp. laricio Maire) / Christian Gauberville in Ecologia mediterranea, vol 45 n° 1 (2019)
[article]
Titre : Analyse phytosociologique et phytoécologique des formations forestières à pin laricio de Corse (Pinus nigra J.F. Arnold subsp. laricio Maire) Titre original : Phytosociological and phytoecological survey of Corsican Pine forests Type de document : Article/Communication Auteurs : Christian Gauberville, Auteur ; Christophe Panaïotis, Auteur ; Frédéric Bioret, Auteur ; Jorge Capelo, Auteur Année de publication : 2019 Article en page(s) : pp 85 - 103 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] phytosociologie
[Termes IGN] pineraie
[Termes IGN] Pinus nigra corsicana
[Termes IGN] unité phytosociologique
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) Dans cette étude phytosociologique et phytoécologique, l’ensemble des formations forestières à pin laricio de Corse ( Pinus nigra J.F. Arnold subsp. laricio Maire), de l’étage mésoméditerranéen supérieur à l’étage subalpin, est étudié. L’analyse de la bibliographie depuis lexixe siècle, confrontée à celle de relevés floristico-écologiques effectués en 2018, a permis d’une part de préciser le statut des syntaxons existants et d’autre part de décrire leurs variations internes. Trois sous-associations ont ainsi été décrites à l’étage supraméditerranéen et trois à l’étage montagnard. Une association nouvelle a par ailleurs été définie à l’étage mésoméditerranéen supérieur. Enfin, les auteurs discutent les places respectives du pin laricio de Corse et du hêtre et évoquent quelques aspects de la conservation de cette espèce emblématique de la Corse. Numéro de notice : A2019-662 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans En ligne : http://ecologia-mediterranea.univ-avignon.fr/wp-content/uploads/sites/25/2019/07 [...] Format de la ressource électronique : URL bulletin Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99451
in Ecologia mediterranea > vol 45 n° 1 (2019) . - pp 85 - 103[article]Documents numériques
en open access
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