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The Forests in Germany / Federal ministry of food and agriculture = Bundesministerium für Ernährung und Landwirtschaft (Berlin, Allemagne) (2015)
Titre : The Forests in Germany : selected results of the third national forest inventory Type de document : Rapport Auteurs : Federal ministry of food and agriculture = Bundesministerium für Ernährung und Landwirtschaft (Berlin, Allemagne), Auteur ; Christian Schmidt, Préfacier, etc. Editeur : Berlin : Federal ministry of food and agriculture BMEL Année de publication : 2015 Importance : 54 p. Format : 21 x 30 cm Note générale : Glossaire Langues : Anglais (eng) Descripteur : [Termes IGN] Allemagne
[Termes IGN] biotope
[Termes IGN] changement climatique
[Termes IGN] espèce exotique envahissante
[Termes IGN] Fagus (genre)
[Termes IGN] forêt
[Termes IGN] habitat forestier
[Termes IGN] Picea abies
[Termes IGN] Pinus (genre)
[Termes IGN] Quercus (genre)
[Termes IGN] structure d'un peuplement forestier
[Termes IGN] surveillance forestière
[Vedettes matières IGN] Ecologie forestièreRésumé : (Editeur) [Introduction] The forest possesses many talents. It is a home for animals and plants, an important climate protector and contains a wealth of biological diversity. For us, it is also an important supplier of raw materials. We need timber to build houses and furniture, for the production of energy and for the paper on which this booklet is printed. The forest is, however, also a place of peace and quiet that offers us refuge and recreation in our hectic, fast-paced world. Therefore, the forest is indispensable for all of our lives. One third of Germany is forested over 11.4 million hectares. The Third National Forest Inventory (NFI) provides good news: Our forest area has remained unchanged. More timber is re-growing than we use. We also have more of it than any other country in the European Union. In spite of high use, our forest stocks rose to 3.7 billion cubic metres. The appearance of German forests is characterized by 90 billion old and young spruces, pines, beeches, oaks and other tree species. The percentage of deciduous trees has risen. The forests have become more diverse and natural in structure. We find more deadwood in them – an important foundation for biodiversity. The good condition of our forests is the consequence of the silvicultural actions of many forest owners and foresters and the result of a forestry policy based on balance and sustainability that distributes the responsibilities on many shoulders: roughly half of German forests are privately owned. One fifth of them are owned by municipalities, cities and other public entities. One third belong to the Länder and the Federal government. But the National Forest Inventory also indicates the need for action. One example is the spruce: the NFI confirms that the spruce – an important supplier of raw material for the timber industry – is in decline. We must therefore talk about how much spruce forest we need and what alternatives there are to the spruce in the face of climate change. The forest should be used in the best possible way without overtaxing it. To make sure of this, the Federal government devised the Forest Strategy 2020. Its objective is to express and harmonize our diverse demands on the forest. This is the only way to maintain our chances for having intact forests for future generations as well. That is why my maxim is “Our forests: utilize and preserve.” The aim of this booklet is to generate understanding for the forest, forest owners and foresters. It provides citizens with the opportunity to get to know the functions of the forest and appreciate its value. Hence, the booklet is a contribution to sustainable forest management. Note de contenu : 1. Germany, the land of forests – forest area unchanged
- The forests – mainly privately owned
- Varying forest abundance in the Länder
2. The forest habitat – more biological diversity in the forest
- Spruce, pine, beech, oak – the most common tree species
- Forest damage led to rethinking – climate change faces us with new challenges
- Increase in older forests
- Rise in numbers of deciduous trees
- Forests more diversely structured
- Naturalness of tree species composition is somewhat improved
- More deadwood found than ten years ago
- Specially protected biotopes on five percent of the forest area
- Invasive plants in the forest are currently of little significance
- Biotope trees – stepping stones for biological diversity
- Conservation status of large-area forest habitat types protected under the Fauna-Flora-Habitats Directive
3. The forest resources – timber stock at record high
- Stock rose again
- Rise in stock primarily among large-girth trees
- The special case of spruce – stock decreased
- Timber increment at a high level
- Timber use at a high level
- Growth greater than use
- Timber use increasingly restricted or suspended
4. The forests as climate protectors – still a carbon sink
5. Surveying the forest
- Open during inventory – the inventory procedure
- National Forest Inventory – established information basisNuméro de notice : 22453 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79981 Documents numériques
en open access
22453-Forests_in_Germany-BWI.pdfAdobe Acrobat PDF Visualisation of spread of Chalara ash dieback for raising public awareness and responsible woodland access / Chen Wang (2015)
Titre : Visualisation of spread of Chalara ash dieback for raising public awareness and responsible woodland access Type de document : Article/Communication Auteurs : Chen Wang, Auteur ; David Miller, Auteur ; Paula Horne, Auteur ; Yang Jiang, Auteur ; Gillian Donaldson-Selby, Auteur ; Jane Morrice, Auteur Editeur : Leeds [Royaume-Uni] : University of Leeds Année de publication : 2015 Conférence : GISRUK 2015, 23th GIS Research UK annual conference 15/04/2015 17/04/2015 Leeds Royaume-Uni open access proceedings Importance : pp 653 - 658 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Ecosse
[Termes IGN] forêt
[Termes IGN] Fraxinus excelsior
[Termes IGN] maladie phytosanitaire
[Termes IGN] modèle 3D du site
[Termes IGN] participation du public
[Termes IGN] visualisation 3D
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) A 3D model of ash (Fraxinus excelsior) woodland was developed to present information on the symptoms and spread of Chalara ash dieback (Chalara fraxinea) as part of a knowledge exchange programme for the Scottish Tree Health Advisory Group. A hypothetical woodland was designed, with characteristics of the vegetation and topography of a site in north-west Scotland. A model of different stages of infection was prepared and represented in a virtual environment. This was presented to audiences in Edinburgh and Aberdeen, and feedback on experiences and understanding of the disease provided to the team monitoring and advising on the disease outbreak. Numéro de notice : C2015-052 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83866 Documents numériques
en open access
Visualisation of spread of Chalara ash diebackAdobe Acrobat PDF Deadwood and tree microhabitat dynamics in unharvested temperate mountain mixed forests: A life-cycle approach to biodiversity monitoring / Laurent Larrieu in Forest ecology and management, vol 334 ([15/12/2014])
[article]
Titre : Deadwood and tree microhabitat dynamics in unharvested temperate mountain mixed forests: A life-cycle approach to biodiversity monitoring Type de document : Article/Communication Auteurs : Laurent Larrieu, Auteur ; Alain Cabanettes, Auteur ; Pierre Gonin, Auteur ; Thibault Lachat, Auteur ; Yoan Paillet, Auteur ; Stephan Winter, Auteur ; Christophe Bouget, Auteur ; Marc Deconchat, Auteur Année de publication : 2014 Article en page(s) : pp 163 - 173 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] bois mort
[Termes IGN] dynamique de la végétation
[Termes IGN] forêt alpestre
[Termes IGN] forêt tempérée
[Termes IGN] Fraxinus excelsior
[Termes IGN] microhabitat
[Termes IGN] placette d'échantillonnage
[Termes IGN] Prunus avium
[Termes IGN] Sorbus (genre)
[Termes IGN] surveillance écologique
[Termes IGN] xylophage
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) In forest ecosystems, conservation is often considered in the absence of any long-term dynamic perspective, yet dynamic processes extend over hundreds of years. Saproxylic taxa represent about 25% of the species diversity in temperate and boreal forests and they depend on both spatial and temporal continuity in the availability of deadwood and certain tree microhabitats. Our study focused on the dynamics of deadwood and tree microhabitats throughout the silvigenetic cycle in 32 unharvested European mountain mixed forests. Our dataset contained 178 plots classified into one of five forest development phases (regeneration, establishing, growing, culmination and disintegration). We analyzed how the amount and quality of deadwood and microhabitats varied according to the five phases. Contrary to expectations, deadwood and tree microhabitat availability remained more or less stable throughout the silvigenetic cycle, both in quantity and diversity. Furthermore, whether the forests were dominated by broadleaves or conifers, there were no significant differences in terms of deadwood or tree microhabitat dynamics. Pioneer (Betula spp., Salix spp.) and post-pioneer species (Fraxinus exelsior, Sorbus spp., Prunus avium) played an important role throughout the silvigenetic cycle by providing a diversity of deadwood when deadwood from the dominant species (i.e. Abies alba, Fagus sylvatica, Picea abies) was scarce. Understanding the dynamics of deadwood and tree microhabitats may help us provide a model for forest managers who intend to emulate natural forest dynamics and will also improve our understanding of the relationship between forest dynamics and biodiversity conservation. Numéro de notice : A2014-597 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : 10.1016/j.foreco.2014.09.007 En ligne : http://dx.doi.org/10.1016/j.foreco.2014.09.007 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81010
in Forest ecology and management > vol 334 [15/12/2014] . - pp 163 - 173[article]Evaluating tree detection and segmentation routines on very high resolution UAV LiDAR data / Luke Wallace in IEEE Transactions on geoscience and remote sensing, vol 52 n° 12 (December 2014)
[article]
Titre : Evaluating tree detection and segmentation routines on very high resolution UAV LiDAR data Type de document : Article/Communication Auteurs : Luke Wallace, Auteur ; Arko Lucieer, Auteur ; Christopher S. Watson, Auteur Année de publication : 2014 Article en page(s) : pp 7619 - 7628 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] arbre (flore)
[Termes IGN] canopée
[Termes IGN] contour
[Termes IGN] détection de cible
[Termes IGN] données lidar
[Termes IGN] drone
[Termes IGN] Eucalyptus globulus
[Termes IGN] hauteur des arbres
[Termes IGN] image à très haute résolution
[Termes IGN] implémentation (informatique)
[Termes IGN] prise de vue aérienne
[Termes IGN] semis de pointsRésumé : (Auteur) Light detection and Ranging (LiDAR) is becoming an increasingly used tool to support decision-making processes within forest operations. Area-based methods that derive information on the condition of a forest based on the distribution of points within the canopy have been proven to produce reliable and consistent results. Individual tree-based methods, however, are not yet used operationally in the industry. This is due to problems in detecting and delineating individual trees under varying forest conditions resulting in an underestimation of the stem count and biases toward larger trees. The aim of this paper is to use high-resolution LiDAR data captured from a small multirotor unmanned aerial vehicle platform to determine the influence of the detection algorithm and point density on the accuracy of tree detection and delineation. The study was conducted in a four-year-old Eucalyptus globulus stand representing an important stage of growth for forest management decision-making process. Five different tree detection routines were implemented, which delineate trees directly from the point cloud, voxel space, and the canopy height model (CHM). The results suggest that both algorithm and point density are important considerations in the accuracy of the detection and delineation of individual trees. The best performing method that utilized both the CHM and the original point cloud was able to correctly detect 98% of the trees in the study area. Increases in point density (from 5 to 50 points/m2) lead to significant improvements (of up to 8%) in the rate of omission for algorithms that made use of the high density of the data. Numéro de notice : A2014-640 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2014.2315649 En ligne : https://doi.org/10.1109/TGRS.2014.2315649 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75077
in IEEE Transactions on geoscience and remote sensing > vol 52 n° 12 (December 2014) . - pp 7619 - 7628[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2014121 RAB Revue Centre de documentation En réserve L003 Disponible Post-fire selective thinning of Arbutus unedo L. coppices keeps animal diversity unchanged: the case of ants / Lidia Quevedo in Annals of Forest Science, vol 71 n° 8 (December 2014)
[article]
Titre : Post-fire selective thinning of Arbutus unedo L. coppices keeps animal diversity unchanged: the case of ants Type de document : Article/Communication Auteurs : Lidia Quevedo, Auteur ; Xavier Arnan, Auteur ; Olga Boet, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 897 - 905 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] Arbutus unedo
[Termes IGN] coupe (sylviculture)
[Termes IGN] incendie de forêt
[Termes IGN] Insecta
[Termes IGN] protection de la biodiversité
[Termes IGN] taillis
[Termes IGN] zone sinistréeRésumé : (Auteur) Context : In the Mediterranean area, different post-fire management strategies are used for coppices of resprouting species to promote a more regular forest structure, enhance plant growth, and reduce fire risk. However, the effects of these management treatments on forest-associated fauna are unknown, which in turn could be limiting their beneficial effects.
Aims : The aim of this work was to determine whether forest management of a recently burned area dominated by a vigorous resprouting tree species (Arbutus unedo L.) affects ant communities.
Methods : Ant communities, sampled using pitfall traps, were examined from unmanaged and selective thinning coppices of A. unedo. Ants are here used as bioindicators of ecosystem health and surrogates for other animal groups.
Results : Very limited effects of these post-fire management strategies on the structure and composition of ant communities were found. The lack of effects could be due to the reported small changes in physical conditions among treatments; or either, the most sensitive ant species to these post-fire management treatments might be the same ones affected by fire and, consequently, the ant species that would potentially be affected most were no longer in the study area.
Conclusion : The lack of any significant effects caused by these post-fire management practices on the associated fauna of A. unedo coppices points out the suitability of these treatments in these circumstances.Numéro de notice : A2014-580 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0381-5 Date de publication en ligne : 05/06/2014 En ligne : https://doi.org/10.1007/s13595-014-0381-5 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74770
in Annals of Forest Science > vol 71 n° 8 (December 2014) . - pp 897 - 905[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 016-2014081 SL Revue Centre de documentation Revues en salle Disponible Une approche cartographique pour relancer la sylviculture du châtaignier dans les Cévennes / Jean-Michel Boissier in Revue forestière française, vol 66 n° 6 (novembre - décembre 2014)PermalinkDisturbances in European beech water relation during an extreme drought / Marianne Peiffer in Annals of Forest Science, vol 71 n° 7 (October 2014)PermalinkEconomics of harvesting uneven-aged forest stands in Fennoscandia / Janne Rämo in Scandinavian journal of forest research, vol 29 n° 8 (October 2014)PermalinkSocial status-mediated tree-ring responses to climate of Abies alba and Fagus sylvatica shift in importance with increasing stand basal area / François Lebourgeois in Forest ecology and management, Vol 328 (September 2014)PermalinkCartes de vigilance climatique : concept, usage, communication / Jean Lemaire in Forêt entreprise, n° 218 (septembre-octobre 2014)PermalinkExigence et cartes de vigilance climatique des chênes pédonculé, sessiles et pubescent. / Jean Lemaire in Forêt entreprise, n° 218 (septembre-octobre 2014)PermalinkLien entre le déficit hydrique climatique et le dépérissement du chêne pédonculé sur la façade atlantique / Jean Lemaire in Forêt entreprise, n° 218 (septembre-octobre 2014)PermalinkAccumulation des stocks de carbone dans les sols sous des cultures bioénergétiques de Populus spp., Salix spp. et Panicum Virgatum / Martine Routhier in VertigO, vol 14 n° 2 (septembre 2014)PermalinkOak powdery mildew changes growth patterns in its host tree: host tolerance response and potential manipulation of host physiology by the parasite / Marie-Laure Desprez-Loustau in Annals of Forest Science, vol 71 n° 5 (July - August 2014)PermalinkCause-effect relationship among morphological adaptations, growth, and gas exchange response of pedunculate oak seedling to waterlogging / Fabienne Tatin-Froux in Annals of Forest Science, vol 71 n° 3 (April - May 2014)Permalink