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Influence of forest management activities on soil organic carbon stocks: A knowledge synthesis / Mathias Mayer in Forest ecology and management, Vol 466 (15 June 2020)  

Public [article]  inForest ecology and management > Vol 466 (15 June 2020) . - 25 p. Titre : Influence of forest management activities on soil organic carbon stocks: A knowledge synthesis Type de document : Article/Communication Auteurs : Mathias Mayer, Auteur ; Cindy E. Prescott, Auteur ; Wafa E.A. Abaker, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : 25 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] afforestation [Termes IGN] azote [Termes IGN] biomasse forestière [Termes IGN] changement d'occupation du sol [Termes IGN] déchet organique [Termes IGN] éclaircie (sylviculture) [Termes IGN] écosystème forestier [Termes IGN] forêt primaire [Termes IGN] forêt secondaire [Termes IGN] gestion forestière [Termes IGN] peuplement mélangé [Termes IGN] teneur en carbone [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) Almost half of the total organic carbon (C) in terrestrial ecosystems is stored in forest soils. By altering rates of input or release of C from soils, forest management activities can influence soil C stocks in forests. In this review, we synthesize current evidence regarding the influences of 13 common forest management practices on forest soil C stocks. Afforestation of former croplands generally increases soil C stocks, whereas on former grasslands and peatlands, soil C stocks are unchanged or even reduced following afforestation. The conversion of primary forests to secondary forests generally reduces soil C stocks, particularly if the land is converted to an agricultural land-use prior to reforestation. Harvesting, particularly clear-cut harvesting, generally results in a reduction in soil C stocks, particularly in the forest floor and upper mineral soil. Removal of residues by harvesting whole-trees and stumps negatively affects soil C stocks. Soil disturbance from site preparation decreases soil C stocks, particularly in the organic top soil, however improved growth of tree seedlings may outweigh soil C losses over a rotation. Nitrogen (N) addition has an overall positive effect on soil C stocks across a wide range of forest ecosystems. Likewise, higher stocks and faster accumulation of soil C occur under tree species with N-fixing associates. Stocks and accumulation rates of soil C also differ under different tree species, with coniferous species accumulating more C in the forest floor and broadleaved species tending to store more C in the mineral soil. There is some evidence that increased tree species diversity could positively affect soil C stocks in temperate and subtropical forests, but tree species identity, particularly N-fixing species, seems to have a stronger impact on soil C stocks than tree species diversity. Management of stand density and thinning have small effects on forest soil C stocks. In forests with high populations of ungulate herbivores, reduction in herbivory levels can increase soil C stocks. Removal of plant biomass for fodder and fuel is related to a reduction in the soil C stocks. Fire management practices such as prescribed burning reduce soil C stocks, but less so than wildfires which are more intense. For each practice, we identify existing gaps in knowledge and suggest research to address the gaps. Numéro de notice : A2020-288 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.foreco.2020.118127 date de publication en ligne : 08/04/2020 En ligne : https://doi.org/10.1016/j.foreco.2020.118127 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95113 [article]

Impact of deadwood decomposition on soil organic carbon sequestration in Estonian and Polish forests / Ewa Blonska in Annals of Forest Science [en ligne], Vol 76 n° 4 (December 2019)  

Public [article]  inAnnals of Forest Science [en ligne] > Vol 76 n° 4 (December 2019) Titre : Impact of deadwood decomposition on soil organic carbon sequestration in Estonian and Polish forests Type de document : Article/Communication Auteurs : Ewa Blonska, Auteur ; Jaroslaw Lasota, Auteur ; Arvo Tullus, Auteur ; et al., Auteur Année de publication : 2019 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] bois mort [Termes IGN] déchet organique [Termes IGN] Estonie [Termes IGN] forêt boréale [Termes IGN] forêt tempérée [Termes IGN] Pologne [Termes IGN] teneur en carbone [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) Key message : The deadwood of different tree species with different decomposition rates affects soil organic carbon sequestration in Estonian and Polish forests. In warmer conditions (Poland), the deadwood decomposition process had a higher rate than in cooler Estonian forests. Soil organic matter fractions analysis can be used to assess the stability and turnover of organic carbon between deadwood and soil in different experimental localities. Context : Deadwood is an important element of properly functioning forest ecosystem and plays a very important role in the maintenance of biodiversity, soil fertility, and carbon sequestration. Aims : The main aim was to estimate how decomposition of deadwood of different tree species with different decomposition rates affects soil organic carbon sequestration in Estonian and Polish forests. Methods : The investigation was carried out in six forests in Poland (51° N) and Estonia (58° N). The study localities differ in their mean annual air temperature (of 2 °C) and the length of the growing season (of 1 month). The deadwood logs of Norway spruce (Picea abies (L.) Karst.), common aspen (Populus tremula L.), and silver birch (Betula pendula Roth) were included in the research. Logs in three stages of decomposition (III–V) were selected for the analysis. Results : There were differences in the stock of soil organic carbon in two experimental localities. There was a higher soil carbon content under logs and in their direct vicinity in Polish forests compared to those in the cooler climate of Estonia. Considerable differences in the amount of soil organic matter were found. The light fraction constituted the greatest quantitative component of organic matter of soils associated with deadwood. Conclusion : A higher carbon content in surface soil horizons as an effect of deadwood decomposition was determined for the Polish (temperate) forests. More decomposed deadwood affected soil organic matter stabilization more strongly than less decayed deadwood. This relationship was clearer in Polish forests. Higher temperatures and longer growing periods primarily influenced the increase of soil organic matter free light fraction concentrations directly under and in close proximity to logs of the studied species. The slower release of deadwood decomposition products was noted in Estonian (hemiboreal) forests. The soil organic matter mineral fraction increased under aspen and spruce logs at advanced decomposition in Poland. Numéro de notice : A2019-530 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-019-0889-9 date de publication en ligne : 29/10/2019 En ligne : https://doi.org/10.1007/s13595-019-0889-9 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94118 [article]

Non-invasive forest litter characterization using full-wave inversion of microwave radar data / Frédéric André in IEEE Transactions on geoscience and remote sensing, vol 53 n° 2 (February 2015)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 53 n° 2 (February 2015) . - pp 828 - 840 Titre : Non-invasive forest litter characterization using full-wave inversion of microwave radar data Type de document : Article/Communication Auteurs : Frédéric André, Auteur ; Mathieu Jonard, Auteur ; Sébastien Lambot, Auteur Année de publication : 2015 Article en page(s) : pp 828 - 840 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] caractérisation [Termes IGN] déchet organique [Termes IGN] Fagus (genre) [Termes IGN] forêt [Termes IGN] forme d'onde pleine [Termes IGN] humidité du sol [Termes IGN] image radar [Termes IGN] litière [Termes IGN] radar pénétrant GPR [Termes IGN] rétrodiffusion [Termes IGN] sol forestier [Termes IGN] télédétection en hyperfréquence Résumé : (Auteur) Litter is acknowledged to affect microwave remote sensing data over forests, and accurate quantification of litter radiative properties is essential for proper retrieval of forest soil water content and forest canopy biophysical characteristics from satellite or airborne sensors. Furthermore, detailed characterization of forest soil organic horizons is of paramount importance for ecological studies and for carbon cycle and global changerelated studies. Ultrawideband ground-penetrating radar (GPR) data acquired above beech forest litter were used to analyze the effects of litter on the backscattering and investigate the ability of GPR to quantitatively characterize the properties of the forest floor. Radar measurements were performed over different litter configurations (i.e., single layers of recently fallen litter (OL) or of fragmented litter (OF), and combined OL-OF layers) and thicknesses. Radar data were processed through full-wave inversion. Over the considered frequency range (0.8-4.0 GHz), attenuation of the radar signal increased as both frequency and litter thickness increase, due to scattering and dielectric losses. These effects were accounted for in the radar model through frequency dependence of litter apparent electrical conductivity. Good agreement (RMSE = 9.5 × 10-3 m) was observed between estimated and measured litter thicknesses. Radar data inversions provided reliable estimates of litter electromagnetic properties, with relative dielectric permittivity values around 1.2 and 3.9 for OL and OF litters, respectively, and corresponding values of 0.032 and 0.080 Sm-1 for litter apparent electrical conductivity at 4.0 GHz. These results show great promise for the use of GPR for noninvasive characterization of forest litter. Numéro de notice : A2015-102 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2014.2328776 En ligne : https://doi.org/10.1109/TGRS.2014.2328776 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75620 [article]

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Carbon storage in biomass, litter, and soil of different plantations in a semiarid temperate region of northwest China / Yang Gao in Annals of Forest Science, vol 71 n° 4 (June 2014)  

Public [article]  inAnnals of Forest Science > vol 71 n° 4 (June 2014) . - pp 427 - 435 Titre : Carbon storage in biomass, litter, and soil of different plantations in a semiarid temperate region of northwest China Type de document : Article/Communication Auteurs : Yang Gao, Auteur ; Jimin Cheng, Auteur ; Zhengrui Ma, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 427 - 435 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] arbre (flore) [Termes IGN] biomasse (combustible) [Termes IGN] déchet organique [Termes IGN] écosystème forestier [Termes IGN] puits de carbone [Termes IGN] sol forestier Résumé : (Auteur) • Context: A large area of abandoned land in the semiarid temperate region of China has been converted into plantations over the past decades. However, little information is available about the ecosystem C storage in different plantations. • Aim and methods: Our objective was to estimate the C storage in biomass, litter, and soil of four different plantations (monospecific stands of Larix gmelinii, Pinus tabuliformis, Picea crassifolia, and Populus simonii). Tree component biomass was estimated using allometric equations. The biomasses of understory vegetation and litter were determined by harvesting all the components. C fractions of plant, litter, and soil were measured. • Results: The ecosystem C storage were as follows: Picea crassifolia (469 t C/ha)>Larix gmelinii (375 t C/ha), Populus simonii (330 t C/ha)>Pinus tabuliformis (281 t C/ha) (Pbranch>trunk>root. The highest soil C (SC) was stored in Picea crassifolia plantation (411 t C/ha), while Populus simonii plantation had a higher SC sequestration rate than others. • Conclusion : C storage and distribution varied among different plantation ecosystems. Coniferous forests had a higher live biomass and litter C storage. Broadleaf forests had considerable SC sequestration potential after 40 years establishment. Numéro de notice : A2014-283 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-013-0355-z date de publication en ligne : 24/01/2014 En ligne : https://doi.org/10.1007/s13595-013-0355-z Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33186 [article]

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Bois en fin de vie in Systèmes solaires, le journal des énergies renouvelables, n° 194 (novembre-décembre 2009)

Public [article]  inSystèmes solaires, le journal des énergies renouvelables > n° 194 (novembre-décembre 2009) . - p. 68-71 Titre : Bois en fin de vie : un potentiel à exploiter Type de document : Article/Communication Année de publication : 2009 Article en page(s) : p. 68-71 Langues : Français (fre) Descripteur : [Termes IGN] déchet organique Résumé : (Editeur) "Chaque année, un tiers des déchets de bois produits en France finirait en centres d'enfouissement. Il s'agit de bois de rebut contenant des produits chimiques, dont la combustion est autorisée dans des chaufferies équipées de traitements de fumées spécifiques. Très peu nombreuses aujourd'hui, ces installations devraient désormais se multiplier." Numéro de notice : IFN_4832 Affiliation des auteurs : non IGN Nature : Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72925 [article]

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Bois2r a passé le cap des 200.000 m3 de bois recyclé in Le Bois International : l'officiel du bois [édition verte], vol 2013 n° 33 (03 octobre 2009)

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Calculer les coûts ou bénéfices de pratiques sylvicoles favorables à la biodiversité : comment procéder ? / Hélène Chevalier in Forêt entreprise, n° 187 (2009/4)    

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Salon Bois Energie 2009 / Fabienne Tisserand in Le Bois International : l'officiel du bois [édition verte], vol 2009 n° 18 (16 mai 2009)

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Régénération du pin d'Alep en Basse Provence / Bernard Prévosto ; Christian Ripert ; Guillaume Favand ; Jean-Michel Lopez ; Roland Estève ; Willy Martin ; Aminata N'Diaye in Forêt méditerranéenne, vol 30 n° 1 (mars 2009)

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Le Rendez-Vous de la Méca n°7 / Dominique Seytre in Le Bois International : l'officiel du bois [édition verte], vol 2009 n° 2 (17 janvier 2009)

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Biotechnology for in vitro growing of edible and medicinal mushrooms on wood wastes / Marian Petre in Annals of forest research, vol 52 n° 1 (January 2009)    

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Quantifying indicators of riparian condition in Australian tropical savannas: integrating high spatial resolution imagery and field survey data / K. Johansen in International Journal of Remote Sensing IJRS, vol 29 n°23 - 24 (December 2008)

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A la conquête de la plaquette / Juliette Talpin in Systèmes solaires, le journal des énergies renouvelables, n° 188 (novembre-décembre 2008)

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n° 756 - mars 2007 - Récolte des branches et des souches en vue d'une valorisation énergétique (Bulletin de Informations forêt) / Jean-Yves Fraysse  

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