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Biomass component equations for Latin American species and groups of species / José Návar in Annals of Forest Science, Vol 66 n° 2 (march 2009)
[article]
Titre : Biomass component equations for Latin American species and groups of species Titre original : Équations des composantes de la biomasse pour des espèces et des groupes d'espèces d'Amérique latine Type de document : Article/Communication Auteurs : José Návar, Auteur Année de publication : 2009 Article en page(s) : n° 208 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Amérique latine
[Termes IGN] biomasse forestière
[Termes IGN] modèle de croissance végétale
[Termes IGN] puits de carbone
[Termes IGN] régression non linéaire
[Termes IGN] statistique mathématique
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) Studies dealing with the estimation of biomass, site productivity and the contribution of forests to the global carbon balance require the use of allometric equations. There have been a great number of equations developed to estimate biomass components of trees and shrubs in various ecosystems. However, there are less literature compilations that address the calculations of biomass components. I report a total of 229 sets of allometric equations to estimate biomass components for 102 species in 72 different forest communities of arid, semi-arid, subtropical, tropical and temperate Latin-American ecosystems. The selection of the appropriate allometric model is a key element in the accurate estimation of biomass, stand productivity, carbon stocks and fluxes, and as a consequence, it is important to apply special effort to the selection and estimation of biomass equations. I also discuss statistical methods of parameter estimation and recommend the dissection of two conventional allometric equations when biomass studies are conducted on a wide range of diameters. In order to use nondestructive procedures of biomass estimation such as the fractal theory, the null hypothesis that the mean slope b value is equal to 2.67 was rejected for Latin American biomass species. This information is critical for the establishment of environmental projects that aim to estimate conventional parameters (i.e., productivity, habitat quality and fuel wood) as well as environmental features (i.e., stocks and fluxes of carbon and nitrogen). Numéro de notice : A2009-719 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2009001 Date de publication en ligne : 28/02/2009 En ligne : https://www.afs-journal.org/articles/forest/abs/2009/02/f08164/f08164.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71948
in Annals of Forest Science > Vol 66 n° 2 (march 2009) . - n° 208[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000317 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Species substitution for carbon storage: Sessile oak versus Corsican pine in France as a case study / Patrick Vallet in Forest ecology and management, vol 257 n° 4 (20 February 2009)
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Titre : Species substitution for carbon storage: Sessile oak versus Corsican pine in France as a case study Type de document : Article/Communication Auteurs : Patrick Vallet, Auteur ; Céline Meredieu, Auteur ; Ingrid Seynave, Auteur ; Thierry Bélouard , Auteur ; Jean-François Dhôte, Auteur Année de publication : 2009 Article en page(s) : pp 1314 - 1323 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] biomasse forestière
[Termes IGN] Pinus nigra corsicana
[Termes IGN] puits de carbone
[Termes IGN] Quercus sessilifloraRésumé : (auteur) Species choice is potentially an important management decision for increasing carbon stocks in forest ecosystems. The substitution of a slow-growing hardwood species (Quercus petraea) by a fast-growing conifer plantation (Pinus nigra subsp. laricio) was studied in central France. Simulations of carbon stocks in tree biomass were conducted using stand growth models Fagacées for sessile oak and PNL for Corsican pine. The changes in soil carbon were assessed using the Century model and data from two European soil monitoring networks: 16 km * 16 km grid and RENECOFOR. Carbon in wood products was assessed with life cycle analysis and lifespan of final products. However, only carbon stocks and their variation were accounted for: effects of energy-consuming materials or fossil fuel substitution are excluded from the analysis. To compare the growth of these two types of forest stands, an important part of the study was to assess the productivity of both species at the same site, using National Forest Inventory data.
Simulations showed that (i) this species substitution would lead to an additional carbon storage of 1.6 tC/ha/year with the conifer plantation during its first rotation (64 years) (ii) at steady state, the time-averaged carbon stock of the conifer plantation over the whole rotation would be 42 tC/ha to 47 tC/ha lower than that of the hardwood even-aged forest, depending on applied silvicultural scenarios. The time-averaged carbon stocks including vegetation, soil and wood products are 221 tC/ha for sessile oak, and around 175 tC/ha for Corsican pine. The amount of carbon stored in wood products is low compared to the total carbon stock (5% for sessile oak, 8–8.5% for Corsican pine), mainly due to important losses during early wood processing, and to the short lifespan of wood products compared to the rotation length of forest stands.Numéro de notice : A2009-502 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.foreco.2008.11.034 Date de publication en ligne : 20/01/2009 En ligne : https://doi.org/10.1016/j.foreco.2008.11.034 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71663
in Forest ecology and management > vol 257 n° 4 (20 February 2009) . - pp 1314 - 1323[article]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)
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Titre : Diversity and primary productivity of hill beech forests from Doftana Valley (Romanian Subcarpathians) Type de document : Article/Communication Auteurs : Mihaela Pauca-Comanescu, Auteur ; Mihaela Pauca-Comanescu, Auteur ; Marinela Onete, Auteur ; Vasile Sanda, Auteur ; Ioana Vicol, Auteur ; Ioana Onut, Auteur ; Daniela Mogaldea, Auteur ; Sorin Stefanut, Auteur Année de publication : 2009 Article en page(s) : p. 63-76 Note générale : Bibliogr. Langues : Anglais (eng) Descripteur : [Termes IGN] biodiversité
[Termes IGN] biomasse aérienne
[Termes IGN] Fagus sylvatica
[Termes IGN] productivité
[Termes IGN] Roumanie
[Vedettes matières IGN] Economie forestièreRésumé : (Auteur) "The hill beech forests cover most of the woody area in the Doftana Valley. The present study refers, for the first time, to two beech forests typical to this belt, which belong to the phytocoenological associations Epipactieto-Fagetum (Resmeriţă, 1972), in the Lunca Mare area, and Hieracio rotundati-Fagetum (Vida 1983, Täuber 1987) in the Sotrile area, from floristic, structural, biomass and necromass accumulation point of view, within the framework of the vertical structure of biocoenosis. The limestone substratum, occasionally with small outcrops in the first beech forest, differs chiefly through the pH levels (6.34-5.67) from the siliceous substratum (pH 5.11-4.36) in the second beech forest. The layer of trees is dominated by Fagus sylvatica in both forests; this species is associated with Cerasus avium (4.5%), Acer pseudoplatanus (2%) and Sorbus torminalis (2%) in the first beech forest, and is monodominant in the second. Although the forest underwent selective cuts, more intense in the Lunca Mare area, the aboveground ligneous biomass reaches nowadays 222 t/ha in the Lunca Mare area compared to only 163 t/ha in the Sotrile area; the average height is 28.8ą2.49 m and 23.7ą1.12 m, respectively, and the diameter is 33.30ą7.9 cm and 31.60ą6.28 cm, respectively. The species of macrofungi, not very numerous during the study because of scarce precipitations (6 and 7 species, respectively), are predominant on the rhytidoma trees in the beech forest rooted on the limestone ground; in the Sotrile beech forest they are joined by mycorrhizal and parasite species. The layer of shrub is underdeveloped. The herbaceous layer is discontinuous, and includes, along herbs, small plants and saplings belonging to the ligneous species and to liana Hedera helix. The maximal value of the aboveground biomass of the layer is 317 kg/ha DM in the Lunca Mare area and 235 kg /ha DM in the Sotrile area. Bryophyta is present in large quantities, especially in the Sotrile area, where by May it represents up to 20% of the inferior layer's biomass; on the limestone ground they do not exceed 0.5%. The most frequent are on the soil surface: Polytrichum formosum, Pogonatum nanum, Hypnum cupressiforme, Tortella tortuosa at Sotrile and, respectively Metzgeria furcata var. ulvula, Leskea nervosa , Ctenidium molluscum at Lunca Mare. In the Lunca Mare area, the most relevant herbaceous species in the structure of the biomass are Viola reichenbachiana, Festuca drymeja, Sanicula europaea and Campanula trachelium; in spring there are also Erytronium dens-canis and Lathyrus vernus. In the Sotrile area these are: Luzula luzuloides, Carex digitata, Calamagrostis arundinacea and Hieracium transsylvanicum, in both spring and autumn. Hedera helix, present especially at the surface, is the most frequent and best represented in terms of biomass in both beech forests, and in particular in the Lunca Mare site. The species characteristic to the phytocoenological association and to the alliances where these beech forests are included are representative through their biomass for the Hieracio rotundati-Fagetum association, while the orchids species characteristic to associations present on the limestone ground, although very diverse and with a great number of individuals for this taxonomic group, are not representative, neither as frequency nor as biomass or density, compared to other herbal species with a larger coenotic value, which are included in the Epipactieto-Fagetum association. The necromass accumulated in the area analyzed decays slowly, varying greatly with surface and time. It averages 4492 kg/ha in the Lunca Mare area and 4134 kg/ha in the Sotrile area. The necromass is made mostly of fallen leaves, and, at least in the Lunca Mare area, the July values are amplified by vernal herb flora." Numéro de notice : IFN_5773 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : sans En ligne : http://www.editurasilvica.ro/afr/52/1/06_Pauca.pdf Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=73496
in Annals of forest research > vol 52 n° 1 (January 2009) . - p. 63-76[article]Documents numériques
en open access
Diversity and primary productivity of hill beech forests...Adobe Acrobat PDF Ten 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)
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Titre : Ten years of fluxes and stand growth in a young beech forest at Hesse, North-eastern France Titre original : Dix années de mesures de flux et de croissance dans une jeune hêtraie du nord-est de la France, en forêt de Hesse Type de document : Article/Communication Auteurs : André Granier, Auteur ; Nathalie Bréda, Auteur ; Bernard Longdoz, Auteur ; Patrick Gross, Auteur ; Jérôme Ngao, Auteur Année de publication : 2008 Article en page(s) : n° 13 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] bioclimatologie
[Termes IGN] biomasse forestière
[Termes IGN] croissance des arbres
[Termes IGN] dioxyde de carbone
[Termes IGN] évapotranspiration
[Termes IGN] Fagus sylvatica
[Termes IGN] France (administrative)
[Termes IGN] Hesse, forêt de (Meuse)
[Termes IGN] hêtraie
[Termes IGN] production primaire brute
[Termes IGN] stress hydrique
[Termes IGN] variation saisonnière
[Vedettes matières IGN] SylvicultureRésumé : (auteur) Water and carbon fluxes, as measured by eddy covariance, climate, soil water content, leaf area index, tree biomass, biomass increment (BI), litter fall and mortality were monitored for 10 successive years in a young beech stand in Hesse forest (north-eastern France) under contrasting climatic and management conditions. Large year-to-year variability of net carbon fluxes (NEE) and to a lesser extent, of tree growth was observed. The variability in NEE (coefficient of variation, CV = 44%) was related to both gross primary production (GPP) and to variations in total ecosystem respiration (TER), each term showing similar and lower interannual variability (CV = 14%) than NEE. Variation in the annual GPP was related to: (i) the water deficit duration and intensity cumulated over the growing season, and (ii) the growing season length, i.e. the period of carbon uptake by the stand. Two thinnings occurring during the observation period did not provoke a reduction in either GPP, water fluxes, or in tree growth. Interannual variation of TER could not be explained by any annual climatic variables, or LAI, and only water deficit duration showed a poor correlation. Annual biomass increment was well correlated to water shortage duration and was significantly influenced by drought in the previous year. The relationship between annual NEE and biomass increment (BI) was poor: in some years, the annual carbon uptake was much higher and in others much lower than tree growth. However this relationship was much stronger and linear (r2 = 0.93) on a weekly to monthly time-scale from budburst to the date of radial growth cessation, indicating a strong link between net carbon uptake and tree growth, while carbon losses by respiration occurring after this date upset this relationship. Despite the lack of correlation between annual data, the NEE and BI cumulated over the 10 years of observations were very close. On the annual time-scale, net primary productivity calculated from eddy fluxes and from biological measurements showed a good correlation. Numéro de notice : A2008-690 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest:2008052 Date de publication en ligne : 24/10/2008 En ligne : https://doi.org/10.1051/forest:2008052 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71436
in Annals of Forest Science > Vol 65 n° 7 (October - November 2008) . - n° 13[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité IFN-DIR-P000234 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Organic carbon stocks and stock changes of forest biomass in Belgium derived from forest inventory data in a spatially explicit approach / Suzanna Lettens in Annals of Forest Science, Vol 65 n° 6 (September 2008)
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Titre : Organic carbon stocks and stock changes of forest biomass in Belgium derived from forest inventory data in a spatially explicit approach Titre original : Évolution des stocks de carbone dans la biomasse des forêts belges entre 1984 et 2000 Type de document : Article/Communication Auteurs : Suzanna Lettens, Auteur ; Suzanna Lettens, Auteur ; Jos Van Orshoven, Auteur ; Dominique Perrin, Auteur ; Bas Van Wesemael, Auteur ; Bart Muys, Auteur Année de publication : 2008 Article en page(s) : n° 604 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Belgique
[Termes IGN] bioénergie
[Termes IGN] biomasse forestière
[Termes IGN] inventaire forestier étranger (données)
[Termes IGN] puits de carbone
[Termes IGN] teneur en carbone
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) Carbon sequestration in forest ecosystems is an important though still uncertain process in the global greenhouse gas balance. We computed biomass organic carbon (BOC) stocks of spatially explicit forested landscape units (LSU) in Belgium based on data collected in the regional forest inventories of 1984 (Wallonia region only) and 2000 (Wallonia and Flanders). C stock changes between 1984 and 2000 were estimated for Wallonia. The total BOC pool stored in Belgian forests in 2000 amounts to 57.8 Mt C in 6 222 km2, or 10.0 kg C m-2 in broadleaf, 9.5 kg C m-2 in coniferous and 8.7 kg C m-2 in mixed forest. Based on previous soil organic carbon (SOC) analysis for the same LSU, BOC and SOC stock per LSU appeared only weakly correlated. The total BOC sequestration between 1984 and 2000 equals 5.7 Mt C over an area of 5 107 km2, resulting in a flux of 0.07 kg C m-2 y-1. The BOC content of broadleaf forest in Wallonia increased with 6%, of coniferous forest with 32% and of mixed forest with 11%. The observed regional differences in BOC stocks and in BOC sequestration rates are explained by the forest age-class distribution and site productivity. The strength of the spatially explicit approach lies in the fact that BOC and SOC data originating from diverse sampling strategies can be combined for spatial or temporal comparison of C stocks. Numéro de notice : A2008-696 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest:2008034 Date de publication en ligne : 19/07/2008 En ligne : https://www.afs-journal.org/articles/forest/abs/2008/06/f07215/f07215.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=70777
in Annals of Forest Science > Vol 65 n° 6 (September 2008) . - n° 604[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité IFN-DIR-P000123 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Production de biomasse à usage énergétique par la gestion des pineraies du Frioul (Italie) / Rafaelle Spinelli in Forêt méditerranéenne, vol 29 n° 3 (septembre 2008)Permalinkn° 756 - mars 2007 - Récolte des branches et des souches en vue d'une valorisation énergétique (Bulletin de Informations forêt) / Jean-Yves FrayssePermalinkSensitivity of space-borne SAR data to forest parameters over sloping terrain : Theory and experiment / Thierry Castel in International Journal of Remote Sensing IJRS, vol 22 n° 12 (August 2001)Permalink