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Within- and between-tree variation of wood density components in Pinus nigra at six sites in Portugal / Alexandra Dias in Annals of Forest Science, vol 75 n° 2 (June 2018)  

Public [article]  inAnnals of Forest Science > vol 75 n° 2 (June 2018) Titre : Within- and between-tree variation of wood density components in Pinus nigra at six sites in Portugal Type de document : Article/Communication Auteurs : Alexandra Dias, Auteur ; Maria João Gaspar, Auteur ; Ana Carvalho, Auteur ; Jani Pires, Auteur ; et al., Auteur Année de publication : 2018 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] analyse de variance [Termes IGN] base de données forestières [Termes IGN] bois adulte [Termes IGN] bois de jeunesse [Termes IGN] croissance des arbres [Termes IGN] densité du bois [Termes IGN] forêt alpestre [Termes IGN] hétérogénéité environnementale [Termes IGN] microdensitométrie [Termes IGN] Pinus nigra [Termes IGN] Portugal [Termes IGN] résineux Résumé : (Auteur) Key message: In Europe, P. nigra wood presents a density pattern of longitudinal variation with an increase from east to west. However, no latitudinal tendencies were detected. Compared to other Portuguese resinous species, P. nigra revealed higher density, identical radial growth and intra-ring heterogeneity, which presents advantages for industry purposes. The environmental factors (Sites effect) manifest more strongly in the latewood components while the Trees/Sites effect is more strongly expressed in the earlywood components. Context: Although P. nigra Arnold is one of the most important conifers in Europe, little is known about the wood’s characteristics in the southwest European region. Aims: Our aims are to outline a first approach to study the growth and wood quality in P. nigra in Portugal comparing to other European natural stands and other resinous species. Methods: Inter- and intra-wood density variation of P. nigra from six Portuguese sites was studied using microdensitometry. Analysis of variance (ANOVA) was performed in three subsets: 50 common rings, core (juvenile wood) and peripheral analysis (mature wood). Results: The average ring density was 0.588 g cm−3, with maximum values in the north and low altitudes. Regarding growth traits, no latitudinal and altitudinal tendencies were detected. Compared to the main timber species in Portugal (P. pinaster Aiton), P. nigra showed similar radial growth, higher density but lower intra-ring density homogeneity. The Sites effect mainly influenced latewood density components, while the Trees/Sites effect primarily influenced earlywood components. The Rings effect was found to be relatively low, with a density decrease in the tree’s first years followed by an increase in the periphery. Growth traits showed a reduction from pith to bark. Conclusion: Considering the quality (density) and growth features of the Black pine, this species could be useful for the reforestation of mountainous Southern Europe areas that are not favourable for other species. Numéro de notice : A2018-321 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-018-0734-6 Date de publication en ligne : 08/05/2018 En ligne : https://doi.org/10.1007/s13595-018-0734-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90462 [article]

Live fuel moisture content (LFMC) time series for multiple sites and species in the French Mediterranean area since 1996 / N. Martin-St Paul in Annals of Forest Science, vol 75 n° 2 (June 2018)  

Public [article]  inAnnals of Forest Science > vol 75 n° 2 (June 2018) Titre : Live fuel moisture content (LFMC) time series for multiple sites and species in the French Mediterranean area since 1996 Type de document : Article/Communication Auteurs : N. Martin-St Paul, Auteur ; François Pimont, Auteur ; Jean-Luc Dupuy, Auteur ; Eric Rigolot, Auteur ; et al., Auteur Année de publication : 2018 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] base de données historiques [Termes IGN] bassin méditerranéen [Termes IGN] France (administrative) [Termes IGN] incendie [Termes IGN] indice d'humidité [Termes IGN] prévention des risques [Termes IGN] sécheresse [Termes IGN] série temporelle [Termes IGN] surveillance de la végétation [Termes IGN] teneur en eau de la végétation [Vedettes matières IGN] Végétation et changement climatique Résumé : (Auteur) Key message: We present a dataset of weekly live fuel moisture content (LFMC) time series over the summer season for 584 sites × years for several woody species in the French Mediterranean area. This database can be used to develop fire danger models and remote sensing products as well as to understand the physiological drivers of LFMC. Numéro de notice : A2018-322 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-018-0729-3 Date de publication en ligne : 07/05/2018 En ligne : https://doi.org/10.1007/s13595-018-0729-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90463 [article]

Static site indices from different national forest inventories: harmonization and prediction from site conditions / Susanne Brandl in Annals of Forest Science, vol 75 n° 2 (June 2018)  

Public [article]  inAnnals of Forest Science > vol 75 n° 2 (June 2018) Titre : Static site indices from different national forest inventories: harmonization and prediction from site conditions Type de document : Article/Communication Auteurs : Susanne Brandl, Auteur ; Tobias Mette, Auteur ; Wolfgang Falk, Auteur ; Patrick Vallet, Auteur ; et al., Auteur Année de publication : 2018 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Allemagne [Termes IGN] changement climatique [Termes IGN] dendrochronologie [Termes IGN] Fagus (genre) [Termes IGN] France (administrative) [Termes IGN] harmonisation des données [Termes IGN] hauteur des arbres [Termes IGN] inventaire forestier étranger (données) [Termes IGN] inventaire forestier national (données France) [Termes IGN] modèle de simulation [Termes IGN] Picea abies [Termes IGN] productivité [Vedettes matières IGN] Végétation et changement climatique Résumé : (Auteur) Key message: Static site indices determined from stands’ top height are derived from different forest inventory sources with height and age information and thus enable comparisons and modeling of a species’ productivity encompassing large environmental gradients. Context: Estimating forest site productivity under changing climate requires models that cover a wide range of site conditions. To exploit different inventory sources, we need harmonized measures and procedures for the productive potential. Static site indices (SI) appear to be a good choice. Aims: We propose a method to derive static site indices for different inventory designs and apply it to six tree species of the German and French National Forest Inventory (NFI). For Norway spruce and European beech, the climate dependency of SI is modeled in order to estimate trends in productivity due to climate change. Methods: Height and age measures are determined from the top diameters of a species at a given site. The SI is determined for a reference age of 100 years. Results: The top height proves as a stable height measure that can be derived harmoniously from German and French NFI. The boundaries of the age-height frame are well described by the Chapman-Richards function. For spruce and beech, generalized additive models of the SI against simple climate variables lead to stable and plausible model behavior. Conclusion: The introduced methodology permits a harmonized quantification of forest site productivity by static site indices. Predicting productivity in dependence on climate illustrates the benefits of combined datasets. Numéro de notice : A2018-323 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-018-0737-3 Date de publication en ligne : 07/05/2018 En ligne : https://doi.org/10.1007/s13595-018-0737-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90464 [article]

How does economic research contribute to the management of forest ecosystem services? / Serge Garcia in Annals of Forest Science, vol 75 n° 2 (June 2018)  

Public [article]  inAnnals of Forest Science > vol 75 n° 2 (June 2018) Titre : How does economic research contribute to the management of forest ecosystem services? Type de document : Article/Communication Auteurs : Serge Garcia, Auteur ; Jens Abildtrup, Auteur ; Anne Stenger, Auteur Année de publication : 2018 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] aménagement forestier [Termes IGN] analyse économique [Termes IGN] changement climatique [Termes IGN] conservation des ressources naturelles [Termes IGN] écologie forestière [Termes IGN] forêt [Termes IGN] gestion forestière durable [Termes IGN] politique publique [Termes IGN] préservation [Termes IGN] service écosystémique [Vedettes matières IGN] Economie forestière Résumé : (Auteur) Key message: More and more environmental and resource economists are taking a particular interest in research on forest ecosystem services (FES), especially in a context of climate change. Spatial and temporal issues are crucial to economic analyses and for the design of conservation policies. Interdisciplinary research involving ecological and economic disciplines is a prerequisite for the more effective management of forest ecosystems. Context: Economists define non-market ecosystem services (ES) as public or common goods due to their characteristics of non-rivalry in terms of consumption and/or non-excludability. Just because they do not have a price does not mean that ES have no economic value because their social benefits are undoubtedly considerable. These features, associated with the market demand for timber and a poor climate risk assessment, may lead to the under-provision of non-market forest ES and the over-harvesting of timber. Aims: In this article, we review research questions that are central to the enhancement of FES provision. Beyond the economic modelling of the joint provision of FES, we focus on issues related to the design of public policies to guide forest management. The objective is to provide crucial insights concerning the importance of a spatial and sustainable provision of FES. Results: First, we provide an economic interpretation of the FES concept and a review of economic models of forest management. Second, we explain how spatial and temporal dimensions of FES can have major implications on their supply and demand. Both dimensions explain why FESs have to be taken into account in production decisions and public policies (including the design of payment for environmental services (PESs)). Conclusion: A better understanding of FES provision and public policies to be enhanced is not possible without accounting for spatial and temporal dimensions. This helps to analyse the impact of intervention on FES and the cost-effectiveness of economic instruments, implying a coordinated effort to bring together ecological and economic data and models. Numéro de notice : A2018-324 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-018-0733-7 Date de publication en ligne : 02/05/2018 En ligne : https://doi.org/10.1007/s13595-018-0733-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90467 [article]

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

Public [article]  inAnnals of Forest Science > 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 / AgroParisTech (2007 -) 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 IGN] Abies alba [Termes IGN] auto-éclaircie [Termes IGN] base de données forestières [Termes IGN] données écologiques [Termes IGN] essai [Termes IGN] facteur édaphique [Termes IGN] France (administrative) [Termes IGN] gestion forestière [Termes IGN] modélisation de la forêt [Termes IGN] Pinus nigra [Termes IGN] Pinus pinaster [Termes IGN] Pseudotsuga menziesii [Termes IGN] Quercus pedunculata [Termes IGN] Quercus sessiliflora [Termes 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]

Inference on forest attributes and ecological diversity of trees outside forest by a two-phase inventory / Marco Marchetti in Annals of Forest Science, vol 75 n° 2 (June 2018)  

Public [article]  inAnnals of Forest Science > vol 75 n° 2 (June 2018) Titre : Inference on forest attributes and ecological diversity of trees outside forest by a two-phase inventory Type de document : Article/Communication Auteurs : Marco Marchetti, Auteur ; Vittorio Garfì, Auteur ; Caterina Pisani, Auteur ; Sara Franceschi, Auteur ; et al., Auteur Année de publication : 2018 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] arbre hors forêt [Termes IGN] biodiversité végétale [Termes IGN] données de terrain [Termes IGN] données dendrométriques [Termes IGN] écosystème [Termes IGN] inférence statistique [Termes IGN] inventaire de la végétation [Termes IGN] Molise (Italie) [Termes IGN] puits de carbone [Vedettes matières IGN] Végétation et changement climatique Résumé : (Auteur) Key message: Trees outside forests (TOF) have crucial ecological and social-economic roles in rural and urban contexts around the world. We demonstrate that a large-scale estimation strategy, based on a two-phase inventory approach, effectively supports the assessment of TOF’s diversity and related climate change mitigation potential. Context: Although trees outside forest (TOF) affect the ecological quality and contribute to increase the social and economic developments at various scales, lack of data and difficulties to harmonize the known information currently limit their integration into national and global forest inventories. Aims: This study aims to develop and test a large-scale estimation framework to assess ecological diversity and above-ground carbon stock of TOF. Methods: This study adopts a two-phase inventory approach. Results: In the surveyed territory (Molise region, Central Italy), all the attributes considered (tree abundance, basal area, wood volume, above-ground carbon stock) are concentrated in a few dominant species. Furthermore, carbon stock in TOF above-ground biomass is non-negligible (on average: 28.6 t ha−1). Compared with the low field sampling effort (0.08% out of 52,796 TOF elements), resulting uncertainty of the estimators are more than satisfactory, especially those regarding the diversity index estimators (relative standard errors Conclusion: The proposed approach can be suitably applied on vast territories to support landscape planning and maximize ecosystem services balance from TOF. Numéro de notice : A2018-326 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-018-0718-6 Date de publication en ligne : 16/03/2018 En ligne : https://doi.org/10.1007/s13595-018-0718-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90469 [article]

Modeling diameter distributions in radiata pine plantations in Spain with existing countrywide LiDAR data / Manuel Arias-Rodil in Annals of Forest Science, vol 75 n° 2 (June 2018)  

Public [article]  inAnnals of Forest Science > vol 75 n° 2 (June 2018) Titre : Modeling diameter distributions in radiata pine plantations in Spain with existing countrywide LiDAR data Type de document : Article/Communication Auteurs : Manuel Arias-Rodil, Auteur ; Ulises Diéguez-Aranda, Auteur ; Juan Gabriel Álvarez-González, Auteur ; César Pérez-Cruzado, Auteur ; et al., Auteur Année de publication : 2018 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] classification par forêts d'arbres décisionnels [Termes IGN] diamètre des arbres [Termes IGN] distance de Kolmogorov-Smirnov [Termes IGN] données altimétriques [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] Espagne [Termes IGN] inventaire forestier (techniques et méthodes) [Termes IGN] Pinus radiata [Vedettes matières IGN] Inventaire forestier Résumé : (Auteur) Key message: We evaluated the use of low-density airborne laser scanning data to estimate diameter distributions in radiata pine plantations. The moment-based parameter recovery method was used to estimate the diameter distributions, considering LiDAR metrics as explanatory variables. The fitted models explained more than 77% of the observed variability. This approach can be replicated every 6 years (temporal cover planned for countrywide LiDAR flights in Spain). Context:The estimation of stand diameter distribution is informative for forest managers in terms of stand structure, forest growth model inputs, and economic timber value. In this sense, airborne LiDAR may represent an adequate source of information. Aims: The objective was to evaluate the use of low-density Spanish countrywide LiDAR data for estimating diameter distributions in Pinus radiata D. Don stands in NW Spain. Methods: The empirical distributions were obtained from 25 sample plots. We applied the moment-based parameter recovery method in combination with the Weibull function to estimate the diameter distributions, considering LiDAR metrics as explanatory variables. We evaluated the results by using the Kolmogorov–Smirnov (KS) test and a classification tree and random forest (RF) to relate the KS test result for each plot to stand-level variables. Results: The models used to estimate average (dm) and quadratic (dg) mean diameters from LiDAR metrics, required for recovery of the Weibull parameters, explained a high percentage of the observed variance (77 and 80%, respectively), with RMSE values of 3.626 and 3.422 cm for the same variables. However, the proportion of plots accepted by the KS was low. This poor performance may be due to the strictness of the KS test and/or by the characteristics of the LiDAR flight. Conclusion: The results justify the assessment of this approach over different species and forest types in regional or countrywide surveys. Numéro de notice : A2018-327 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-018-0712-z Date de publication en ligne : 16/03/2018 En ligne : https://doi.org/10.1007/s13595-018-0712-z Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90470 [article]