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Individual tree diameter growth modeling system for Dalat pine (Pinus dalatensis Ferré) of the upland mixed tropical forests / Bao Huy in Forest ecology and management, vol 480 (15 January 2021)  

Public [article]  inForest ecology and management > vol 480 (15 January 2021) . - n° 118612 Titre : Individual tree diameter growth modeling system for Dalat pine (Pinus dalatensis Ferré) of the upland mixed tropical forests Type de document : Article/Communication Auteurs : Bao Huy, Auteur ; Le Canh nam, Auteur ; Krishna P. Poudel, Auteur ; Hailemariam Temesgen, Auteur Année de publication : 2021 Article en page(s) : n° 118612 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes descripteurs IGN] cerne [Termes descripteurs IGN] conservation de la flore [Termes descripteurs IGN] croissance végétale [Termes descripteurs IGN] diamètre à hauteur de poitrine [Termes descripteurs IGN] facteur édaphique [Termes descripteurs IGN] flore endémique [Termes descripteurs IGN] forêt tropicale [Termes descripteurs IGN] modèle de croissance [Termes descripteurs IGN] Pinus (genre) [Termes descripteurs IGN] Viet Nam Résumé : (auteur) Pinus dalatensis Ferré (Dalat pine, or five-needle pine, locally) is an endemic large tree species of Vietnam that has both high timber and non-timber values. It is also a rare tree species listed in the Red List of the International Union for Conservation of Nature (IUCN). The objective of this study was to develop an individual tree diameter growth modeling system to facilitate the sustainable management and conservation of this species. We used Haglöf Sweden ® increment borers to collect tree ring samples from a total of 56 trees resulting in a dataset of 4566 diameter at breast height (dbh, cm) measurements at age (t, year) and obtained the associated ecological environmental factors in three different sites in the Central Highlands, Vietnam. A subset of this dataset (n = 1264) also had the climate data collected over the period of past 32–38 years (from 1980 to 2011 and from 1979 to 2016). Weighted mixed-effects models were used to model Dalat pine trees growth and account for autocorrelation and heteroscedasticity of the dbh measurements. Cross validation over 200 realizations were used to select the best equation form of dbh growth and incorporate the environmental effects and climatic factors that help improve reliability of the models. Under the mixed-effects modeling paradigm, the Mitscherlich equation fitted with random effects of ecological environmental factors (eco-subregions and altitude) and climatic factors (temperature, humidity, and temperature in dry and in rainy seasons) produced the best results. Whereas, under the fixed-effect modeling paradigm, the models that used the exponential function of environmental or climatic factors as the modifiers of an average diameter growth performed the best (Bias = −5.9% and RMSE = 10.0 cm). The models developed in this study will be useful for forecasting growth and for silvicultural planning under shifting environment and climate and are expected to contribute to the sustainable management of this endemic species. Numéro de notice : A2021-063 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.foreco.2020.118612 date de publication en ligne : 08/10/2020 En ligne : https://doi.org/10.1016/j.foreco.2020.118612 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96743 [article]

Topographic, edaphic and climate influences on aspen (Populus tremuloides) drought stress on an intermountain bunchgrass prairie / Andrew Neary in Forest ecology and management, vol 479 ([01/01/2021])  

Public [article]  inForest ecology and management > vol 479 [01/01/2021] . - 12 p. Titre : Topographic, edaphic and climate influences on aspen (Populus tremuloides) drought stress on an intermountain bunchgrass prairie Type de document : Article/Communication Auteurs : Andrew Neary, Auteur ; Ricardo Mata-González, Auteur ; Heidi Schmalz, Auteur Année de publication : 2021 Article en page(s) : 12 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] analyse de sensibilité [Termes descripteurs IGN] climat [Termes descripteurs IGN] écophysiologie [Termes descripteurs IGN] état du sol [Termes descripteurs IGN] facteur édaphique [Termes descripteurs IGN] hauteur des arbres [Termes descripteurs IGN] humidité du sol [Termes descripteurs IGN] manteau neigeux [Termes descripteurs IGN] Oregon (Etats-Unis) [Termes descripteurs IGN] Poaceae [Termes descripteurs IGN] Populus tremuloides [Termes descripteurs IGN] prairie [Termes descripteurs IGN] série temporelle [Termes descripteurs IGN] stress hydrique [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) Quaking aspen, Populus tremuloides, has experienced severe declines in recent years in part due to the effects of changing climate and extreme drought. This study set out to investigate these effects by assessing associations of climatic, edaphic and topographic variables with physiological drought stress in aspen. The study took place on the Zumwalt Prairie in northeastern Oregon, a semi-arid bunchgrass prairie where aspen occur in isolated stands associated with riparian areas and late-season persistence of snow drifts. Using a 33-year time series of Landsat imagery to detect associations of aspen stands late-season snow cover and field measurements of soil moisture in aspen stands during 2017, we found while snow dominated stands were associated with greater soil moisture during spring, levels had equilibrated to those of other upland stands by summer. Measurements of predawn and midday stem Ψ in multiple height classes of aspen ramets revealed associations of both shallow soil moisture and vapor pressure deficit with physiological drought stress in aspen. Analysis of soil texture class revealed an important association with midday stem Ψ, with finer textured soils associated with decreased stem Ψ in comparison to coarser textured soils. While neither topographical characteristics nor snow cover were found to be important drivers of drought stress, topographical curvature was found to have a strong influence on summer soil moisture in upland stands. These findings contribute to our understanding of aspen physiology, drought ecology and landscape hydrology toward the xeric margin of aspen’s range. This information can help land managers anticipate and adapt to changing climates and understand their effects on key plant species such as aspen. Numéro de notice : A2021-001 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.foreco.2020.118530 date de publication en ligne : 08/09/2020 En ligne : https://doi.org/10.1016/j.foreco.2020.118530 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96028 [article]

GIS Coop: networks of silvicultural trials for supporting forest management under changing environment / Ingrid Seynave in Annals of Forest Science [en ligne], vol 75 n° 2 (June 2018)  

Public [article]  inAnnals of Forest Science [en ligne] > vol 75 n° 2 (June 2018) . - n° 48 Titre : GIS Coop: networks of silvicultural trials for supporting forest management under changing environment Titre original : Review Paper Type de document : Article/Communication Auteurs : Ingrid Seynave, Auteur ; Alain Bailly, Auteur ; Philippe Balandier, Auteur ; Jean-Daniel Bontemps , Auteur ; Priscilla Cailly, Auteur ; Thomas Cordonnier, Auteur ; Christine Deleuze, Auteur ; Jean-François Dhôte, Auteur ; Christian Ginisty, Auteur ; François Lebourgeois, Auteur ; Dominique Merzeau, Auteur ; Eric Paillassa, Auteur ; Sandrine Perret, Auteur ; Claudine Richter, Auteur ; Céline Meredieu, Auteur Année de publication : 2018 Projets : ARBRE / Article en page(s) : n° 48 Note générale : Bibliographie The GIS Coop networks benefits from the financial support of the French Ministry of Agriculture and Forest since 1994. As partner of GIS Coop, AgroParisTech (formerly ENGREF), CPFA, IDF, FCBA (formerly Afocel), INRA, Irstea (formerly Cemagref), and ONF support the GIS Coop and have made available more than 175 people since 1994. The projects below also contributed to GIS Coop networks: ADAREEX (2017): RMT AFORCE, Ministère en charge des Forêts, France Bois Forêt, Labex ARBRE CoopEco (2012–2017): Ministère de l’Agriculture, de l’Agroalimentaire et de la Forêt, Office National des Forêts; E16/2012,E31/2012, E22/2015 Dolar (2014–2018): Ministère de l’Agriculture, de l’Agroalimentaire et de la Forêt (DGAL-DSF); 2014-331 et 2015-339 GPMF (2009): Conseil régional d’Aquitaine, Ministère en charge de la forêt FORBOIS2 (2015–2020): Etat, Conseil régional de Lorraine, FEDER Fortius (2010–2014): Conseil régional d’Aquitaine (convention n°14007648), DRAAF Aquitaine (ADV14R072000016, AE OSIRIS150004147365) Imprebio (2011–2013): Ministère de l’Ecologie, du Développement Durable et de l’Energie, Ministère de l’Agriculture, de l’Agroalimentaire et de la Forêt; 10-MBGD-BGF-3-CVS-081 INSENSE (2014–2016): ADEME, 1360C0088OBUP (2012): Labex ARBRE Pinaster (2015–2019): Conseil régional d’Aquitaine (16004034), DRAAF Aquitaine (ADV15R072000012), FEDER (FEDER-FSE-2014-2020 Axe 1) Sylvogène (2005–2008) : convention 06 2 90 6259): Fonds unique interministériel FUI, Conseil régional d’Aquitaine, FEDER XPSilv (2017–2018): Labex ARBRE Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes descripteurs IGN] Abies alba [Termes descripteurs IGN] auto-éclaircie [Termes descripteurs IGN] base de données forestières [Termes descripteurs IGN] données écologiques [Termes descripteurs IGN] essai [Termes descripteurs IGN] facteur édaphique [Termes descripteurs IGN] France (administrative) [Termes descripteurs IGN] gestion forestière [Termes descripteurs IGN] modélisation de la forêt [Termes descripteurs IGN] Pinus nigra [Termes descripteurs IGN] Pinus pinaster [Termes descripteurs IGN] pseudotsuga menziesii [Termes descripteurs IGN] Quercus pedunculata [Termes descripteurs IGN] quercus sessiliflora [Termes descripteurs IGN] SIG participatif Résumé : (Auteur) Key message: The diversity of forest management systems and the contrasted competition level treatments applied make the experimental networks of the GIS Coop, a nationwide testing program in the field of emerging forestry topics within the framework of the ongoing global changes. Context: To understand the dynamics of forest management systems and build adapted growth models for new forestry practices, long-term experiment networks remain more crucial than ever. Aims: Two principles are at the basis of the experimental design of the networks of the Scientific Interest Group Cooperative for data on forest tree and stand growth (GIS Coop): contrasted and extreme silvicultural treatments in diverse pedoclimatic contexts. Methods: Various forest management systems are under study: regular and even-aged stands of Douglas fir, sessile and pedunculate oaks, Maritime and Laricio pines, mixed stands of sessile oak, European silver fir, and Douglas fir combined with other species. Highly contrasted stand density regimes, from open growth to self-thinning, are formalized quantitatively. Results: One hundred and eighty-five sites representing a total of 1206 plots have been set up in the last 20 years, where trees are measured regularly (every 3 to 10 years). The major outputs of these networks for research and management are the calibration/validation of growth and yield models and the drawing up of forest management guides Conclusion: The GIS Coop adapts its networks so that they can contribute to develop growth models that explicitly integrate pedoclimatic factors and thus also contribute to research on the sustainability of ecosystems under environmental and socio-economic changes. Numéro de notice : A2018-325 Affiliation des auteurs : LIF+Ext (2012-2019) Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-018-0692-z date de publication en ligne : 09/04/2018 En ligne : https://doi.org/10.1007/s13595-018-0692-z Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90468 [article]

Factors affecting forest dynamics in the Iberian Peninsula from 1987 to 2012 : The role of topography and drought / Juan José Vidal-Macua in Forest ecology and management, vol 406 (15 December 2017)  

Public [article]  inForest ecology and management > vol 406 (15 December 2017) . - pp 290 - 306 Titre : Factors affecting forest dynamics in the Iberian Peninsula from 1987 to 2012 : The role of topography and drought Type de document : Article/Communication Auteurs : Juan José Vidal-Macua, Auteur ; Miquel Ninyerola, Auteur ; Alaitz Zabala, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 290 - 306 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes descripteurs IGN] analyse diachronique [Termes descripteurs IGN] classification et arbre de régression [Termes descripteurs IGN] détail topographique [Termes descripteurs IGN] dynamique de la végétation [Termes descripteurs IGN] facteur édaphique [Termes descripteurs IGN] feuillu [Termes descripteurs IGN] péninsule Ibérique [Termes descripteurs IGN] pinophyta [Termes descripteurs IGN] rayonnement solaire [Termes descripteurs IGN] sécheresse Résumé : (auteur) Numéro de notice : A2017-809 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.foreco.2017.10.011 En ligne : https://doi.org/10.1016/j.foreco.2017.10.011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89249 [article]

Focal plant species and soil factors in Mediterranean coastal dunes: An undisclosed liaison? / Claudia Angiolini in Estuarine, Coastal and Shelf Science, vol inconnu ([08/06/2017])  

Public [article]  inEstuarine, Coastal and Shelf Science > vol inconnu [08/06/2017] . - pp 248 - 258 Titre : Focal plant species and soil factors in Mediterranean coastal dunes: An undisclosed liaison? Type de document : Article/Communication Auteurs : Claudia Angiolini, Auteur ; Gianmaria Bonari, Auteur ; Marco Landi, Auteur Année de publication : 2017 Article en page(s) : pp 248 - 258 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] analyse canonique [Termes descripteurs IGN] dune [Termes descripteurs IGN] facteur édaphique [Termes descripteurs IGN] indicateur biologique [Termes descripteurs IGN] littoral méditerranéen [Termes descripteurs IGN] microhabitat [Termes descripteurs IGN] pédologie locale [Termes descripteurs IGN] placette d'échantillonnage [Termes descripteurs IGN] Toscane (Italie) [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) Understanding the response of plant species to soil factors on coastal sand dunes is critical for effective conservation of coastal habitats in the Mediterranean basin. Our main objectives were to investigate: i) the main soil factors driving species composition in a Mediterranean coastal dune environment; ii) the ecological requirements of focal plant species with respect to single soil factors; iii) whether the focal species of a given macrohabitat (including EU habitats) have similar edaphic needs. We identified 108 plots with three macrohabitats as strata (embryo dunes; mobile dunes; fixed dunes) by random stratified sampling design along the Tyrrhenian coast of central Italy in areas with a high degree of biodiversity and naturalness. Vegetation and soil data were collected in the plots. Canonical Correspondence Analysis (CCA) confirmed that soil had a main role in driving focal dune species composition as found in other Mediterranean areas and indicated that three factors (field capacity, pH and CaCO3) sufficiently explain patterns of plant species. An inverse relation between field capacity, which proves to be the most decisive feature for differences in species ecological requirements between macrohabitats, and pH was observed. Generalized Additive Models (GAMs) showed that: i) the focal species of fixed dunes have a higher probability of occurrence and response curves that overlap at high field capacity and TOC values and at low pH, showing an opposite trend with respect to the species of embryonic and mixed dunes; ii) species of mixed dunes have a probability of occurrence linked to different values of CaCO3, with Ammophila arenaria showing its optimum at high CaCO3 values. Thus our results sustain the hypothesis that dune focal species, diagnostic and characteristic of coastal dune marcohabitats, have different ecological responses with respect to soil factors. Moreover, species within the same habitat can have different ecological responses due to species competition. Data about edaphic requirements of sand dune species and modelling of their ecological responses suggests that focal dune species can be bio-indicators of soil conditions and provide useful indications for conservation, monitoring and restoration of Mediterranean coastal habitats. Numéro de notice : A2017-249 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : 10.1016/j.ecss.2017.06.001 date de publication en ligne : 08/06/2017 En ligne : https://doi.org/10.1016/j.ecss.2017.06.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85209 [article]

Effects of environmental factors on the species richness, composition and community horizontal structure of vascular plants in Scots pine forests on fixed sand dunes / Mari Tilk in Silva fennica, vol 51 n° 3 (2017)  

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Application of topo-edaphic factors and remotely sensed vegetation indices to enhance biomass estimation in a heterogeneous landscape in the Eastern Arc mountains of Tanzania / Mercy Ojoyi in Geocarto international, vol 31 n° 1 - 2 (January - February 2016)  

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Effects of micro-topographies on stand structure and tree species diversity in an old-growth evergreen broad-leaved forest, southwestern Japan / Tran Van Do in Global ecology and conservation, vol 4 (July 2015)  

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A probabilistic eco-hydrological model to predict the effects of climate change on natural vegetation at a regional scale / Jan-Philip M. Witte in Landscape ecology, vol 30 n° 5 (May 2015)  

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Vegetation relevés and soil measurements in the Netherlands: the Ecological Conditions Database (EC) / G.W. Wieger Wamelink in Biodiversity & Ecology, vol 4 (September 2012)  

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Shifts in the height-related competitiveness of tree species following recent climate warming and implications for tree community composition: the case of common beech and sessile oak as predominant broadleaved species in Europe / Jean-Daniel Bontemps in Oikos, vol 121 n° 8 (August 2012)  

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Evidence of altitudinal increase in photosynthetic capacity: gas exchange measurements at ambient and constant CO2 partial pressures / Caroline C. Bresson in Annals of Forest Science, Vol 66 n° 5 (July - August 2009)  

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La forêt face aux évènements climatiques extrêmes / Quentin Girard (2009)    

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Is the spatial distribution of European beech (Fagus sylvatica L.) limited by its potential height growth? / Ingrid Seynave in Journal of Biogeography, vol 35 n° 10 (October 2008)  

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