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Variables related to nitrogen deposition improve defoliation models for European forests / Marco Ferretti in Annals of Forest Science, vol 72 n° 7 (October 2015)
[article]
Titre : Variables related to nitrogen deposition improve defoliation models for European forests Type de document : Article/Communication Auteurs : Marco Ferretti, Auteur ; Marco Calderis, Auteur ; Aldo Marchetto, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 897 - 907 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] azote
[Termes IGN] défoliation
[Termes IGN] espèce végétale
[Termes IGN] Europe (géographie physique)
[Termes IGN] Fagus (genre)
[Termes IGN] forêt
[Termes IGN] impact sur l'environnement
[Termes IGN] Picea abies
[Termes IGN] Pinus sylvestris
[Termes IGN] placette d'échantillonnage
[Termes IGN] pollution atmosphérique
[Termes IGN] surveillance de la végétationRésumé : (auteur) Key message : Atmospheric deposition of nitrogen compounds and soil and foliar variables related to N deposition resulted important factors accounting for the variability of defoliation in European forest plots.
Context : Nitrogen (N) deposition has increased in the northern hemisphere because of anthropogenic-related emission of N compounds. Increased N availability may have an adverse impact on forest sustainability.
Aims : This study aims to test the importance of throughfall N (Nthr) deposition in explaining the variability of the frequency of trees with defoliation >25 % (F 25), an indicator of forest condition.
Methods : A pan-European data set (71 plots) with enhanced quality control was considered. The additive effect of Nthr-related predictors (identified conceptually and by rank correlation) in explaining F 25 was investigated by partial least square regression in comparison with a reference model based on site, stand, management and climate data. Reported damage to foliage, Nthr deposition, foliar N ratios and mineral top-soil variables were added stepwise to the reference model.
Results : N-related variables improved defoliation models. Higher Nthr deposition led to higher F 25 for beech and Norway spruce, while the effect was opposite for Scots pine. Higher foliar N ratios led to higher F 25 for all species.
Conclusion : Nthr deposition, damage to foliage, foliar N/P, N/Ca, N/Mg, N/K, top-soil pH, C/N and exchangeable base cation resulted important factors (although with possible diverse effect) in explaining the variability of F 25 among plots.Numéro de notice : A2015-718 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0445-6 Date de publication en ligne : 01/10/2015 En ligne : https://doi.org/10.1007/s13595-014-0445-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78364
in Annals of Forest Science > vol 72 n° 7 (October 2015) . - pp 897 - 907[article]Is the variability of key wood properties linked with the variability of key architectural traits? Case of planted Teak in Togo regarding thinning and provenance / Kodjo Tondjo in Annals of Forest Science, vol 72 n° 6 (September 2015)
[article]
Titre : Is the variability of key wood properties linked with the variability of key architectural traits? Case of planted Teak in Togo regarding thinning and provenance Type de document : Article/Communication Auteurs : Kodjo Tondjo, Auteur ; Loïc Brancheriau, Auteur ; Sylvie-Annabel Sabatier, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 717 - 729 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] analyse diachronique
[Termes IGN] Congo
[Termes IGN] croissance des arbres
[Termes IGN] image proche infrarouge
[Termes IGN] Tectona grandis
[Termes IGN] TogoRésumé : (auteur) Key message : A retrospective architectural analysis performed on planted teaks in Togo showed that the variation of wood radial properties were linked with tree ontogeny, and that these relationships depended on thinning practices and provenance.
Context : Variability in growth, flowering and forking in individual trees according to origin and/or thinning practices may affect wood structure and consequently impact wood physical properties. We tested this hypothesis in teak.
Aims : We sought evidence of: (1) origin effects (Togolese versus Tanzanian teak) on growth, flowering, cambial growth and wood properties; (2) thinning effects on these variables and (3) relationships between tree ontogeny and radial variations of wood properties.
Methods : A retrospective architectural analysis was used to draw stem growth and near infrared spectroscopy to assess radial variations of wood properties.
Results : Flowering reflects tree vigour and began at an earlier age in Togolese than in Tanzanian provenances. No differences were detected in regards to growth ring surface area, basic density and modulus of elasticity. Both systematic and selective thinnings improved growth without impacting the two latter properties. Stabilization of the growth ring area observed at 4 years old was associated with a decline in stem annual extension with a 1-year time lag.
Conclusions : Architectural analyses showed that radial growth was linked with tree ontogeny. This method can be extended to subsequent developmental stages, i.e. to older trees with economic interest, and used to determine architectural traits that are useful in tree selection.Numéro de notice : A2015-408 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0425-x Date de publication en ligne : 24/10/2014 En ligne : https://doi.org/10.1007/s13595-014-0425-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76895
in Annals of Forest Science > vol 72 n° 6 (September 2015) . - pp 717 - 729[article]Les mangroves écosystèmes sous haute protection / Anne Konitz in Rivages, le magazine du conservatoire du littoral, n° 85 (automne 2015)
[article]
Titre : Les mangroves écosystèmes sous haute protection Type de document : Article/Communication Auteurs : Anne Konitz, Auteur Année de publication : 2015 Article en page(s) : pp 10 - 11 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] écosystème forestier
[Termes IGN] littoral
[Termes IGN] mangroveRésumé : (auteur) Présentes uniquement en outre-mer, les mangroves sont de véritables cocons de biodiversité qui abritent une dizaine d'espèces et espaces de protection des côtes. Numéro de notice : A2015--038 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79043
in Rivages, le magazine du conservatoire du littoral > n° 85 (automne 2015) . - pp 10 - 11[article]Documents numériques
en open access
Les mangroves écosystèmesAdobe Acrobat PDF vol 72 n° 6 - September 2015 - Wood properties: future needs, measurement and modelling (Bulletin de Annals of Forest Science) / Francis Colin
[n° ou bulletin]
est un bulletin de Annals of Forest Science / Institut national de la recherche agronomique (1946 - 2019) (1999 -)
Titre : vol 72 n° 6 - September 2015 - Wood properties: future needs, measurement and modelling Type de document : Périodique Auteurs : Francis Colin, Éditeur scientifique ; Marie-Pierre Laborie, Éditeur scientifique ; Mathieu Fortin, Éditeur scientifique Année de publication : 2015 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] biomasse forestière
[Termes IGN] bois d'industrie
[Termes IGN] développement durableNuméro de notice : sans Affiliation des auteurs : non IGN Thématique : FORET Nature : Numéro de périodique En ligne : http://link.springer.com/journal/13595/72/6/page/1 Format de la ressource électronique : URL Sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=25371 [n° ou bulletin]Contient
- Is the variability of key wood properties linked with the variability of key architectural traits? Case of planted Teak in Togo regarding thinning and provenance / Kodjo Tondjo in Annals of Forest Science, vol 72 n° 6 (September 2015)
- A novel method to correct for wood MOE ultrasonics and NIRS measurements on increment cores in Liquidambar styraciflua L / Herizo Rakotovololonalimanana in Annals of Forest Science, vol 72 n° 6 (September 2015)
- Recommendations for the use of tree models to estimate national forest biomass and assess their uncertainty / Matieu Henry in Annals of Forest Science, vol 72 n° 6 (September 2015)
- An overview of existing and promising technologies for national forest monitoring / Matieu Henry in Annals of Forest Science, vol 72 n° 6 (September 2015)
Effects of clear-felling versus gradual removal of conifer trees on the survival of understorey plants during the restoration of ancient woodlands / Nick D. Brown in Forest ecology and management, vol 348 ([15/07/2015])
[article]
Titre : Effects of clear-felling versus gradual removal of conifer trees on the survival of understorey plants during the restoration of ancient woodlands Type de document : Article/Communication Auteurs : Nick D. Brown, Auteur ; Tom Curtis, Auteur ; Emily C. Adams, Auteur Année de publication : 2015 Article en page(s) : pp 15 - 22 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] coupe rase (sylviculture)
[Termes IGN] Pinophyta
[Termes IGN] régénération (sylviculture)
[Termes IGN] restauration du milieu naturelRésumé : (auteur) Plantations of exotic conifers on ancient woodland sites retain many features of high conservation value and in many countries such sites are being actively restored. Clear-felling of the conifer trees is often a straight-forward first step, but recent guidance on restoration advocates gradual removal of the plantation crop to protect vulnerable woodland specialist plants. To date there has been little empirical evidence to support this policy. One hundred and four stands in 39 woodland sites in the UK owned by the Woodland Trust from Cornwall to Invernesshire were surveyed in 2001 and again in 2009 to assess the survival of woodland flora following restoration by both clear-felling and gradual removal of the plantation crop. On average, there were over seven woodland specialist and ancient woodland indicator species in each of the stands surveyed. Loss of specialist woodland species – the most shade adapted component of the flora – over this time period was strongly correlated with the degree of canopy opening. In contrast, the loss of more light demanding plant species was not related to the intensity of tree removals. This study suggests that a careful assessment and prioritisation of conservation values is needed before restoration. Rapid removal of an exotic species as part of a restoration programme may have an adverse effect on subsequent succession. Numéro de notice : A2015-185 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.foreco.2015.03.030 En ligne : https://doi.org/10.1016/j.foreco.2015.03.030 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75954
in Forest ecology and management > vol 348 [15/07/2015] . - pp 15 - 22[article]PermalinkGenetic differentiation of European larch along an altitudinal gradient in the French Alps / Maxime Nardin in Annals of Forest Science, vol 72 n° 5 (July 2015)PermalinkLa multifonctionnalité des forêts entre discours et pratiques : illusion ou réalité à assumer ? / Christian Barthod in Revue forestière française, vol 67 n° 4 (juillet 2015)Permalinkn° 211 - 212 - juillet - décembre 2015 - Spécial forêt (Bulletin de Revue Française de Photogrammétrie et de Télédétection)PermalinkPermalinkComparing individual-tree approaches for predicting height growth of underplanted seedlings / John M. Lhotka in Annals of Forest Science, vol 72 n° 4 (June 2015)PermalinkSeedlings of two Acacia species from contrasting habitats show different photoprotective and antioxidative responses to drought and heatwaves / Agnieszka Wujeska-Klause in Annals of Forest Science, vol 72 n° 4 (June 2015)PermalinkAn improved species distribution model for Scots pine and downy oak under future climate change in the NW Italian Alps / Giorgio Vacchiano in Annals of Forest Science, vol 72 n° 3 (May 2015)PermalinkAugmenter le niveau de production de biomasse des cultures ligneuses dédiées ou semi-dédiées. Principaux enseignements du projet SYLVA BIOM / Jean-Charles Bastien in Revue forestière française, vol 67 n° 3 (mai 2015)PermalinkLe Châtaignier / Anonyme in Forêts de France, n° 583 (mai 2015)Permalinkvol 72 n° 3 - May 2015 - Climate change and tree responses in Central European forests (Bulletin de Annals of Forest Science) / Thomas WohlgemuthPermalinkDeveloping predictive models of wind damage in Austrian forests / Ferenc Pasztor in Annals of Forest Science, vol 72 n° 3 (May 2015)PermalinkLa forêt en chiffres et en cartes / Anonyme in Forêt entreprise, n° 222 (mai-juin 2015)PermalinkOptimising the yield of Douglas-fir with an appropriate thinning regime / Jean-Philippe Schütz in European Journal of Forest Research, vol 134 n° 3 (May 2015)PermalinkPas de vent, pas de bois. L’apport de la biomécanique des arbres pour comprendre la croissance puis la vulnérabilité aux vents forts des peuplements forestiers / Meriem Fournier in Revue forestière française, vol 67 n° 3 (mai 2015)PermalinkLes propriétaires forestiers privés face au renouvellement des peuplements / Xavier Bonnart in Forêt entreprise, n° 222 (mai-juin 2015)PermalinkResponse of Swiss forests to management and climate change in the last 60 years / Meinrad Küchler in Annals of Forest Science, vol 72 n° 3 (May 2015)PermalinkStructure de la propriété forestière privée en 2012 / François Didolot in Forêt entreprise, n° 222 (mai-juin 2015)PermalinkApprovisionnement : Mobilisation, revenir à plus de réalisme ! / Fabienne Tisserand in Le Bois International : l'officiel du bois [édition verte], vol 2015 n° 15 (18 avril 2015)PermalinkPermalink