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sciences de la vie
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Sciences biologiques Sciences naturelles >> Spécialistes des sciences de la vie Vie (biologie) >>Terme(s) spécifique(s) : Mycologie Biologie Botanique Sciences de la santé Zoologie Equiv. LCSH : Life sciences |
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Comparison of three Landsat TM compositing methods: A case study using modeled tree canopy cover / Bonnie Ruefenacht in Photogrammetric Engineering & Remote Sensing, PERS, vol 82 n° 3 (March 2016)
[article]
Titre : Comparison of three Landsat TM compositing methods: A case study using modeled tree canopy cover Type de document : Article/Communication Auteurs : Bonnie Ruefenacht, Auteur Année de publication : 2016 Article en page(s) : pp 199 - 211 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] canopée
[Termes IGN] image Landsat-TM
[Termes IGN] modèle de régression
[Termes IGN] mosaïquage d'images
[Termes IGN] Normalized Difference Vegetation IndexRésumé : (auteur) Landsat imagery mosaics developed using model II regression have been shown to successfully model percent tree-canopy cover (PTCC). Creating model II regression mosaics, however, is a time-consuming, manual process. The objective of this study is to evaluate the effectiveness of using more easily automated image composites techniques, such as median Landsat-5 image composites or maximum NDVI Landsat-5 image composites, as alternatives to model II regression mosaics for the modeling of PTCC. This study found all composite types were effective in modeling PTCC, but the maximum NDVI composites included anomalies, clouds, shadows, and tended to be pixelated, whereas the median composites and the model II regression mosaics had none of these issues. The median composite procedure is automated and was found to be an effective approach to statistically reduce a much larger ensemble of images on a pixel basis to create images suitable for vegetation modeling. Numéro de notice : A2016-177 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.82.3.189 En ligne : https://doi.org/10.14358/PERS.82.3.189 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80515
in Photogrammetric Engineering & Remote Sensing, PERS > vol 82 n° 3 (March 2016) . - pp 199 - 211[article]Extreme events and climate change: the post-disaster dynamics of forest fires and forest storms in Sweden / Rolf Lidskog in Scandinavian journal of forest research, vol 31 n° 2 (March 2016)
[article]
Titre : Extreme events and climate change: the post-disaster dynamics of forest fires and forest storms in Sweden Type de document : Article/Communication Auteurs : Rolf Lidskog, Auteur ; Daniel Sjödin, Auteur Année de publication : 2016 Article en page(s) : pp 148 - 155 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] catastrophe naturelle
[Termes IGN] changement climatique
[Termes IGN] dommage matériel
[Termes IGN] forêt
[Termes IGN] incendie de forêt
[Termes IGN] Pinophyta
[Termes IGN] Suède
[Termes IGN] tempête
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) How are extreme events understood in the forest sector? What are the implications of forest professionals' understandings and evaluations of extreme events? These questions are central to this study, which analyses the handling of the largest forest storm and the largest forest fire in modern Swedish history. The theoretical approach is that of risk governance in practice, which stresses that understanding the framings, practices and strategies used by members of professional organizations is pivotal for how disasters are managed. Two interview studies have been conducted with forest professionals involved in the two cases. The analysis shows that there were fundamentally different understandings of the two events and their implications for forestry practice. The storm was seen as an unavoidable natural disaster, but the consequences of future storms were considered possible to mitigate through changed forest practices. The forest fire, on the other hand, was conceptualized as a partly natural and partly man-made disaster, and forestry was seen as having very limited possibilities to reduce the likelihood as well as the consequences of similar events. The different understandings had significant implications for the post-disaster dynamics and for which management practices that were developed. Thus, understanding how extreme events are perceived is crucial to understanding which management practices that emerge in their wake, a topic of growing relevance because climate change is predicted to increase the frequency of forest fires and storms. Numéro de notice : A2016-017 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1080/02827581.2015.1113308 Date de publication en ligne : 20/11/2015 En ligne : http://dx.doi.org/10.1080/02827581.2015.1113308 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79382
in Scandinavian journal of forest research > vol 31 n° 2 (March 2016) . - pp 148 - 155[article]Forest tree genomics: 10 achievements from the past 10 years and future prospects / Christophe Plomion in Annals of Forest Science, vol 73 n° 1 (March 2016)
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Titre : Forest tree genomics: 10 achievements from the past 10 years and future prospects Type de document : Article/Communication Auteurs : Christophe Plomion, Auteur ; Catherine Bastien, Auteur ; Marie-Béatrice Bogeat-Triboulot, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 77 - 103 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] arbre (flore)
[Termes IGN] biologie
[Termes IGN] état de conservation
[Termes IGN] forêt
[Termes IGN] génétique
[Termes IGN] reproduction (végétation)Résumé : (auteur) Key message : This review highlights some of the discoveries and applications made possible by “omics” technologies over the last 10 years and provides perspectives for pioneering research to increase our understanding of tree biology.
Context : A decade after the first forest tree genome sequence was released into the public domain, the rapidly evolving genomics and bioinformatics toolbox has advanced our understanding of the structure, functioning, and evolution of forest tree genomes.
Aims and methods : This review highlights some of the discoveries and applications that “omics” technologies have made possible for forest trees over the past 10 years.
Results : In this review, we start by our current understanding of genome evolution and intricacies of gene regulation for reproduction, development, and responses to biotic and abiotic stresses. We then skim over advances in interactome analysis and epigenomics, the knowledge of the extent of genetic variation within and between species, revealing micro- and macro-evolutionary processes and species history, together with the complex architecture of quantitative traits. We finally end with applications in genetic resource conservation and breeding.
Conclusion : The knowledge gained through the use of these technologies has a huge potential impact for adapting forests to the main challenges they will have to face: changing demand from ecosystem services with potentially conflicting strategies in terms of conservation and use, as well as climate changes and associated threats. Genomics will undoubtedly play a major role over the next decade and beyond, not only to further understand the mechanisms underlying adaptation and evolution but also to develop and implement innovative management and policy actions to preserve the adaptability of natural forests and intensively managed plantations.Numéro de notice : A2016-187 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-015-0488-3 Date de publication en ligne : 01/03/2016 En ligne : https://doi.org/10.1007/s13595-015-0488-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80614
in Annals of Forest Science > vol 73 n° 1 (March 2016) . - pp 77 - 103[article]Géo-poppy, un serveur web SIG portable pour le recueil de données terrain / Julien Ancelin in Géomatique expert, n° 109 (mars - avril 2016)
[article]
Titre : Géo-poppy, un serveur web SIG portable pour le recueil de données terrain Type de document : Article/Communication Auteurs : Julien Ancelin, Auteur ; Jean-François Odoux, Auteur ; Olivier Schmit, Auteur ; Audrey Caille, Auteur Année de publication : 2016 Article en page(s) : pp 42 - 48 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] base de données thématiques
[Termes IGN] conception cartographique
[Termes IGN] densité de la végétation
[Termes IGN] données localisées
[Termes IGN] flore locale
[Termes IGN] Hymenoptera (ordre)
[Termes IGN] QGIS
[Termes IGN] SIG nomade
[Termes IGN] système d'information géographique
[Termes IGN] WebSIGRésumé : (auteur) [introduction] L’INRA est un organisme de recherche appliquée. Les expérimentations qu'il mène, à l’interface entre agriculture et environnement, génèrent une quantité importante de données. Les mesures expérimentales sont réalisées en laboratoire, mais aussi «au champ» et parfois sur de vastes territoires. Les données produites sont numériques et de plus géo-localisées ; elles sont centralisées et disponibles sur le web et les scientifiques se servent de logiciels SIG (système d'Information Géographique) pour visualiser et analyser l'information. C’est le cas des recherches menées par l'Unité expérimentale Entomologie qui est située sur le site INRA du Magneraud en Charente-Maritime. Elle participe à un programme scientifique qui vise à comprendre les relations entre abeilles et plantes messicoles sur un territoire vaste de 450 km2 à proximité de Niort (Deux-Sèvres). Numéro de notice : A2016-244 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80751
in Géomatique expert > n° 109 (mars - avril 2016) . - pp 42 - 48[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 265-2016021 RAB Revue Centre de documentation En réserve L003 Disponible IFN-001-P001823 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt A GEOBIA framework for the implementation of national and international forest definitions using very high spatial resolution optical satellite data / M. Tompoulidou in Geocarto international, vol 31 n° 3 - 4 (March - April 2016)
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Titre : A GEOBIA framework for the implementation of national and international forest definitions using very high spatial resolution optical satellite data Type de document : Article/Communication Auteurs : M. Tompoulidou, Auteur ; Ioannis Z. Gitas, Auteur ; A. Polychronaki, Auteur ; G. Mallinis, Auteur Année de publication : 2016 Article en page(s) : pp 342 - 354 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse d'image orientée objet
[Termes IGN] définition
[Termes IGN] forêt
[Termes IGN] Grèce
[Termes IGN] inventaire forestier (techniques et méthodes)
[Termes IGN] occupation du sol
[Termes IGN] utilisation du sol
[Vedettes matières IGN] Inventaire forestierRésumé : (Auteur) In recent decades, there is an increasing need for harmonised and accurate information on the status and extent of forests. However, delineating the extent of forest areas is a complex task, since the existence of more than 100 definitions of forest worldwide causes considerable discrepancies in forested area estimates. The aim of this work was to examine the potential of geographic object based image analysis (GEOBIA) and very high spatial resolution imagery to discriminate forest areas following two different definitions of forest in northern Greece. In particular, we examined the definition of forest under the Greek law as well as the United Nations Food and Agricultural Organisation definition. Our findings suggest that the developed GEOBIA approach not only performed remarkably well for the discrimination of forest areas but also allowed to estimate rapidly and reliably forest extents when the two aforementioned forest definitions were employed. Numéro de notice : A2016-154 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2015.1047470 Date de publication en ligne : 29/05/2015 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2015.1047470 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80394
in Geocarto international > vol 31 n° 3 - 4 (March - April 2016) . - pp 342 - 354[article]Réservation
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