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Comparison of methods used in European National Forest Inventories for the estimation of volume increment: towards harmonisation / Thomas Gschwantner in Annals of Forest Science [en ligne], vol 73 n° 4 (December 2016)  

Public [article]  inAnnals of Forest Science [en ligne] > vol 73 n° 4 (December 2016) . - pp 807 - 821 Titre : Comparison of methods used in European National Forest Inventories for the estimation of volume increment: towards harmonisation Type de document : Article/Communication Auteurs : Thomas Gschwantner, Auteur ; Adrian Lanz, Auteur ; Claude Vidal, Auteur ; Michal Bosela, Auteur ; Martin Vestman, Auteur ; Klemens Schadauer, Auteur ; Lucio di Cosmo, Auteur ; Jonas Fridman, Auteur ; Patrizia Gasparini, Auteur ; Andrius Kuliesis, Auteur ; Stein Michael Tomter, Auteur Année de publication : 2016 Article en page(s) : pp 807 - 821 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] analyse comparative [Termes descripteurs IGN] croissance végétale [Termes descripteurs IGN] estimation statistique [Termes descripteurs IGN] harmonisation des données [Termes descripteurs IGN] inventaire forestier étranger (données) [Termes descripteurs IGN] inventaire forestier national (données France) [Termes descripteurs IGN] volume en bois [Vedettes matières IGN] Inventaire forestier Résumé : (Auteur) The increment estimation methods of European NFIs were explored by means of 12 essential NFI features. The results indicate various differences among NFIs within the commonly acknowledged methodological frame. The perspectives for harmonisation at the European level are promising. Context : The estimation of increment is implemented differently in European National Forest Inventories (NFIs) due to different historical origins of NFIs and sampling designs and field assessments accommodated to country-specific conditions. The aspired harmonisation of increment estimation requires a comparison and an analysis of NFI methods. Aims : The objective was to investigate the differences in volume increment estimation methods used in European NFIs. The conducted work shall set a basis for harmonisation at the European level which is needed to improve information on forest resources for various strategic processes. Methods : A comprehensive enquiry was conducted during Cost Action FP1001 to explore the methods of increment estimation of 29 European NFIs. The enquiry built upon the preceding Cost Action E43 and was complemented by an analysis of literature to demonstrate the methodological backgrounds. Results : The comparison of methods revealed differences concerning the NFI features such as sampling grids, periodicity of assessments, permanent and temporary plots, use of remote sensing, sample tree selection, components of forest growth, forest area changes, sampling thresholds, field measurements, drain assessment, involved models and tree parts included in estimates. Conclusion : Increment estimation methods differ considerably among European NFIs. Their harmonisation introduces new issues into the harmonisation process. Recent accomplishments and the increased use of sample-based inventories in Europe make perspectives for harmonised reporting of increment estimation promising. Numéro de notice : A2016--008 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-016-0554-5 date de publication en ligne : 02/05/2016 En ligne : http://dx.doi.org/10.1007/s13595-016-0554-5 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83833 [article]

Estimates of stem wood increments in forest resources: comparison of different approaches in forest inventory: consequences for international reporting: case study of European forests / Andrius Kuliesis in Annals of Forest Science [en ligne], vol 73 n° 4 (December 2016)  

Public [article]  inAnnals of Forest Science [en ligne] > vol 73 n° 4 (December 2016) . - pp 857 - 869 Titre : Estimates of stem wood increments in forest resources: comparison of different approaches in forest inventory: consequences for international reporting: case study of European forests Type de document : Article/Communication Auteurs : Andrius Kuliesis, Auteur ; Stein Michael Tomter, Auteur ; Claude Vidal, Auteur ; Adrian Lanz, Auteur Année de publication : 2016 Article en page(s) : pp 857 - 869 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] croissance végétale [Termes descripteurs IGN] échantillonnage [Termes descripteurs IGN] Europe (géographie politique) [Termes descripteurs IGN] inventaire forestier étranger (données) [Termes descripteurs IGN] inventaire forestier national (données France) [Termes descripteurs IGN] placette d'échantillonnage [Vedettes matières IGN] Inventaire forestier Résumé : (Auteur) Quality and reliability of forest resource assessments depend on the ability of national forest inventories (NFIs) to supply necessary and high-quality data. Over the last decades and especially since the 1990s, the NFIs in European countries have been rapidly developing. Possibilities for obtaining reliable and accurate data on annual increment from different inventory types were evaluated, and sample-based inventories have been found to be superior to standwise inventories in providing reliable data. Simplified methods may be employed when increment cannot be directly estimated from inventory data. Numéro de notice : A2016--009 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-016-0559-0 En ligne : http://dx.doi.org/10.1007/s13595-016-0559-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83834 [article]

The role of European National Forest Inventories for international forestry reporting / Claude Vidal in Annals of Forest Science [en ligne], vol 73 n° 4 (December 2016)  

Public [article]  inAnnals of Forest Science [en ligne] > vol 73 n° 4 (December 2016) . - pp 793 - 806 Titre : The role of European National Forest Inventories for international forestry reporting Type de document : Article/Communication Auteurs : Claude Vidal, Auteur ; Iciar A. Alberdi, Auteur ; John Redmond, Auteur ; Martin Vestman, Auteur ; Adrian Lanz, Auteur ; Klemens Schadauer, Auteur Année de publication : 2016 Article en page(s) : pp 793 - 806 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] analyse comparative [Termes descripteurs IGN] Europe (géographie politique) [Termes descripteurs IGN] harmonisation des données [Termes descripteurs IGN] inventaire forestier étranger (données) [Termes descripteurs IGN] inventaire forestier national (données France) [Termes descripteurs IGN] ressources forestières [Vedettes matières IGN] Inventaire forestier Résumé : (Auteur) Despite agreements on definitions, the national data provided for international reporting are lacking comparability. To address this limitation the European National Forest Inventory Network has established criteria to harmonise definitions and to provide tools to transform national data into internationally comparable data. Context : Forest reporting presents a series of challenges for countries, owing to diverse processes at international level such as the Global Forest Resources Assessment (FRA), Convention on Biological Diversity, United Nations Framework Convention on Climate Change and its Kyoto Protocol. Further challenges are faced at European level with Forest Europe and policy needs. Aims : The aim of this paper is to provide a comprehensive review of the national and international forest reporting processes and of the role of the National Forest Inventories (NFIs) and the long-associated challenges resulting from a lack of comparability in definitions used. In addition, there is a discussion on the role of the European National Forest Inventory Network (ENFIN) as a facilitator for enhancing harmonization and comparability of national data and the ancillary information required to monitor European forestry-related policies. Methods : NFIs take part to international reporting processes as providers of information. They are correspondent to the FRA process, and then they know very well the context of harmonization. Participating in the ENFIN research projects, NFIs, and particularly authors, conducted a screening exercise on harmonization status at European and World level. Results : This review article is a synthesis of the main findings of the abovementioned screening exercise. It highlights the main gaps in terms of comparability of result in international reporting. Thanks to ENFIN harmonization research project, it gives same ways of working as a possible benchmark for the rest of the world. Conclusion : Based on the international reporting exercises, their interactions, and impacts on new forestry policy requirements, the need for a strengthened harmonization process can clearly be demonstrated. Due to European policy needs, research work within ENFIN has been initiated to develop tools for building comparable results at international level. This work is an important benchmark particularly for countries outside Europe from which to base future harmonization work. Numéro de notice : A2016--007 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-016-0545-6 date de publication en ligne : 18/04/2016 En ligne : https://doi.org/10.1007/s13595-016-0545-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83832 [article]

Establishing forest inventory reference definitions for forest and growing stock: a study towards common reporting / Claude Vidal in Silva fennica, vol 42 n° 2 (2008)  

Public [article]  inSilva fennica > vol 42 n° 2 (2008) . - pp 247 - 266 Titre : Establishing forest inventory reference definitions for forest and growing stock: a study towards common reporting Type de document : Article/Communication Auteurs : Claude Vidal, Auteur ; Adrian Lanz, Auteur ; Erkki Tomppo, Auteur ; Klemens Schadauer, Auteur ; Thomas Gschwantner, Auteur ; Lucio di Cosmo, Auteur ; Nicolas Robert, Auteur Année de publication : 2008 Article en page(s) : pp 247 - 266 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] décomposition [Termes descripteurs IGN] harmonisation des données [Termes descripteurs IGN] inventaire forestier étranger (données) [Termes descripteurs IGN] inventaire forestier national (données France) [Termes descripteurs IGN] terminologie [Vedettes matières IGN] Inventaire forestier Résumé : (auteur) International agreements such as the Kyoto protocol and Convention on Biological Diversity (1992), as well as, criteria and indicator processes require reports on the status of nations’ forests. Any comparison of the current status and trends of forest resources among nations presumes that the nations’ applied definitions and concepts produce comparable estimates of the status of forests. In spite of this, the FAO has already collected global information for 60 years and made noticeable efforts in creating common definitions, but forest related data are still collected using diverse definitions, even regarding basic concepts such as forest and forest area. A simple consequence is that the cross-countries estimates are not comparable. The reasons behind the differences in the definitions are diverse histories, and sometimes different use of forests. In an ideal case, national forest inventories should fulfil both national and international needs. In addition to the FAO’s Forest Resources Assessment process, other efforts are made to assess the status of forests in European countries, e.g. European Forest Information and Communication System (EFICS). EFICS produced reports about forest inventories but does not suggest any common definition or method to convert estimates from one definition to another one. This article presents principles and methods to create commonly acceptable and adoptable definitions for forest inventories. The principles and methods are demonstrated using two examples: the reference definitions of forest and growing stock. The article is based on the work of COST Action E43 (http://www.metla.fi/eu/cost/e43/). Numéro de notice : A2008-592 Affiliation des auteurs : IFN+Ext (1958-2011) Thématique : FORET Nature : Article En ligne : http://dx.doi.org/10.14214/sf.255 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83023 [article]