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Extracting knowledge from legacy maps to delineate eco-geographical regions / Lin Yang in International journal of geographical information science IJGIS, vol 35 n° 2 (February 2021)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 35 n° 2 (February 2021) . - pp 250 - 272 Titre : Extracting knowledge from legacy maps to delineate eco-geographical regions Type de document : Article/Communication Auteurs : Lin Yang, Auteur ; Xinming Li, Auteur ; Qinye Yang, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : pp 250 - 272 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] carte ancienne [Termes IGN] carte climatique [Termes IGN] cartographie écologique [Termes IGN] Chine [Termes IGN] délimitation [Termes IGN] données cartographiques [Termes IGN] écorégion [Termes IGN] extraction de données [Termes IGN] logique floue [Termes IGN] sous ensemble flou [Termes IGN] zone tampon Résumé : (auteur) Legacy ecoregion maps contain knowledge on relationships between eco-region units and their environmental factors. This study proposes a method to extract knowledge from legacy area-class maps to formulate a set of fuzzy membership functions useful for regionalization. We develop a buffer zone approach to reduce the uncertainty of boundaries between eco-region units on area-class maps. We generate buffer zones with a Euclidean distance perpendicular to the boundaries, then the original eco-region units without buffer zones serve as the basic units to generate the probability density functions (PDF) of environmental variables. Then, we transform the PDFs to fuzzy membership functions for class-zones on the map. We demonstrate the proposed method with a climatic zone map of China. The results showed that the buffer zone approach effectively reduced the uncertainties of boundaries. A buffer distance of 10–15 km was recommended in this study. The climatic zone map generated based on the extracted fuzzy membership functions showed a higher spatial stratification heterogeneity (compared to the original map). Based on the fuzzy membership functions with climate data of 1961–2015, we also prepared an updated climatic zone map. This study demonstrates the prospects of using fuzzy membership functions to delineate area classes for regionalization purpose. Numéro de notice : A2021-025 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2020.1806284 date de publication en ligne : 17/09/2020 En ligne : https://doi.org/10.1080/13658816.2020.1806284 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96692 [article]

Urban tree species identification and carbon stock mapping for urban green planning and management / MD Abdul Choudhury in Forests, vol 11 n°11 (November 2020)  

Public [article]  inForests > vol 11 n°11 (November 2020) . - N° 1226 Titre : Urban tree species identification and carbon stock mapping for urban green planning and management Type de document : Article/Communication Auteurs : MD Abdul Choudhury, Auteur ; Ernesto Marcheggiani, Auteur ; Francesca Despini, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : N° 1226 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse d'image orientée objet [Termes IGN] arbre urbain [Termes IGN] cartographie écologique [Termes IGN] déboisement [Termes IGN] diamètre à hauteur de poitrine [Termes IGN] données allométriques [Termes IGN] données dendrométriques [Termes IGN] Emilie-Romagne (Italie) [Termes IGN] gestion urbaine [Termes IGN] modèle de croissance végétale [Termes IGN] photo-interprétation assistée par ordinateur [Termes IGN] planification urbaine [Termes IGN] puits de carbone [Termes IGN] structure-from-motion [Termes IGN] ville durable Résumé : (auteur) Recently, the severe intensification of atmospheric carbon has highlighted the importance of urban tree contributions in atmospheric carbon mitigations in city areas considering sustainable urban green planning and management systems. Explicit and timely information on urban trees and their roles in the atmospheric Carbon Stock (CS) are essential for policymakers to take immediate actions to ameliorate the effects of deforestation and their worsening outcomes. In this study, a detailed methodology for urban tree CS calibration and mapping was developed for the small urban area of Sassuolo in Italy. For dominant tree species classification, a remote sensing approach was applied, utilizing a high-resolution WV3 image. Five dominant species were identified and classified by applying the Object-Based Image Analysis (OBIA) approach with an overall accuracy of 78%. The CS calibration was done by utilizing an allometric model based on the field data of tree dendrometry—i.e., Height (H) and Diameter at Breast Height (DBH). For geometric measurements, a terrestrial photogrammetric approach known as Structure-from-Motion (SfM) was utilized. Out of 22 randomly selected sample plots of 100 square meters (10 m × 10 m) each, seven plots were utilized to validate the results of the CS calibration and mapping. In this study, CS mapping was done in an efficient and convenient way, highlighting higher CS and lower CS zones while recognizing the dominant tree species contributions. This study will help city planners initiate CS mapping and predict the possible CS for larger urban regions to ensure a sustainable urban green management system. Numéro de notice : A2020-757 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/f11111226 date de publication en ligne : 21/11/2020 En ligne : https://doi.org/10.3390/f11111226 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96470 [article]

Drones for biodiversity conservation and ecological monitoring / Ricardo Díaz-Delgado (2019)  

Public Titre : Drones for biodiversity conservation and ecological monitoring Type de document : Monographie Auteurs : Ricardo Díaz-Delgado, Éditeur scientifique ; Caspar A. Mücher, Éditeur scientifique Editeur : Bâle [Suisse] : Multidisciplinary Digital Publishing Institute MDPI Année de publication : 2019 Importance : 176 p. Format : 17 x 25 cm ISBN/ISSN/EAN : 978-3-03921-981-0 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] cartographie écologique [Termes IGN] classification dirigée [Termes IGN] conservation [Termes IGN] écosystème [Termes IGN] image captée par drone [Termes IGN] image hyperspectrale [Termes IGN] protection de la biodiversité [Termes IGN] surveillance écologique Résumé : (éditeur) Unmanned aerial vehicles (UAV) have already become an affordable and cost-efficient tool to quickly map a targeted area for many emerging applications in the arena of ecological monitoring and biodiversity conservation. Managers, owners, companies, and scientists are using professional drones equipped with high-resolution visible, multispectral, or thermal cameras to assess the state of ecosystems, the effect of disturbances, or the dynamics and changes within biological communities inter alia. We are now at a tipping point on the use of drones for these type of applications over natural areas. UAV missions are increasing but most of them are testing applicability. It is time now to move to frequent revisiting missions, aiding in the retrieval of important biophysical parameters in ecosystems or mapping species distributions. This Special Issue shows UAV applications contributing to a better understanding of biodiversity and ecosystem status, threats, changes, and trends. It documents the enhancement of knowledge in ecological integrity parameters mapping, long-term ecological monitoring based on drones, mapping of alien species spread and distribution, upscaling ecological variables from drone to satellite images: methods and approaches, rapid risk and disturbance assessment using drones, mapping albedo with UAVs, wildlife tracking, bird colony and chimpanzee nest mapping, habitat mapping and monitoring, and a review on drones for conservation in protected areas. Note de contenu : Editorial 1- Calibrating Sentinel-2 imagery with multispectral UAV derived information to quantify damages in mediterranean rice crops caused by western Swamphen (Porphyrio porphyrio) 2- A UAV-based sensor system for measuring land surface Albedo: tested over a boreal peatland ecosystem 3- Drones for conservation in protected areas: present and future 4- Enhancement of ecological field experimental research by means of UAV multispectral sensing 5- Greenness indices from a low-Cost UAV imagery as tools for monitoring post-fire forest recovery 6- Classification of lowland native grassland communities using hyperspectral unmanned aircraft system (UAS) imagery in the tasmanian midlands 7- Rapid assessment of ecological integrity for LTER wetland Sites by using UAV multispectral mapping 8- Estimating wildlife tag location errors from a VHF receiver mounted on a drone 9- Drone Monitoring of Breeding waterbird populations: The case of the glossy ibis 10- Assessment of chimpanzee nest detectability in drone-acquired images Numéro de notice : 25886 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie DOI : 10.3390/books978-3-03921-981-0 En ligne : https://doi.org/10.3390/books978-3-03921-981-0 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95786

Pathways to bridge the biophysical realism gap in ecosystem services mapping approaches / Sandra Lavorel in Ecological indicators, vol 74 (March 2017)  

Public [article]  inEcological indicators > vol 74 (March 2017) . - pp 241 - 260 Titre : Pathways to bridge the biophysical realism gap in ecosystem services mapping approaches Type de document : Article/Communication Auteurs : Sandra Lavorel, Auteur ; Anita Bayer, Auteur ; Alberte Bondeau, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 241 - 260 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Environnement [Termes IGN] cartographie écologique [Termes IGN] distribution spatiale [Termes IGN] grande échelle [Termes IGN] incertitude géométrique [Termes IGN] modèle numérique [Termes IGN] prestataire de services [Termes IGN] service écosystémique Résumé : (auteur) The mapping of ecosystem service supply has become quite common in ecosystem service assessment practice for terrestrial ecosystems, but land cover remains the most common indicator for ecosystems ability to deliver ecosystem services. For marine ecosystems, practice is even less advanced, with a clear deficit in spatially-explicit assessments of ecosystem service supply. This situation, which generates considerable uncertainty in the assessment of ecosystems’ ability to support current and future human well-being, contrasts with increasing understanding of the role of terrestrial and marine biodiversity for ecosystem functioning and thereby for ecosystem services. This paper provides a synthesis of available approaches, models and tools, and data sources, that are able to better link ecosystem service mapping to current understanding of the role of ecosystem service providing organisms and land/seascape structure in ecosystem functioning. Based on a review of literature, models and associated geo-referenced metrics are classified according to the way in which land or marine use, ecological processes and especially biodiversity effects are represented. We distinguish five types of models: proxy-based, phenomenological, niche-based, trait-based and full-process. Examples from each model type are presented and data requirements considered. Our synthesis demonstrates that the current understanding of the role of biota in ecosystem services can effectively be incorporated into mapping approaches and opens avenues for further model development using hybrid approaches tailored to available resources. We end by discussing ways to resolve sources of uncertainty associated with model representation of biotic processes and with data availability. Numéro de notice : A2017-002 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET/GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern En ligne : http://dx.doi.org/10.1016/j.ecolind.2016.11.015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83131 [article]

Plant and vegetation mapping / Franco Pedrotti (2013)

Public Titre : Plant and vegetation mapping Type de document : Monographie Auteurs : Franco Pedrotti, Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2013 Collection : Geobotany studies Sous-collection : Basics, methods and case studies Importance : 294 p. Format : 16 x 24 cm ISBN/ISSN/EAN : 978-3-642-30234-3 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] biodiversité [Termes IGN] carte de la végétation [Termes IGN] cartographie écologique [Termes IGN] données environnementales [Termes IGN] données spatiotemporelles [Termes IGN] géobotanique [Termes IGN] image Landsat-TM [Termes IGN] image NOAA-AVHRR [Termes IGN] Italie [Termes IGN] orthophotographie [Termes IGN] patrimoine naturel [Termes IGN] photographie aérienne [Termes IGN] phytosociologie [Termes IGN] relief volcanique [Termes IGN] représentation cartographique [Termes IGN] système d'information géographique Résumé : (Editeur) The book is concerned principally with geobotanical mapping. Geobotany is a broad science that deals with the study of species and of vegetation communities in relation to the environment. It includes other, perhaps more familiar sciences, such as plant geography, plant ecology, and chorology, and phytosociology (plant sociology). Geobotanical cartography is a field of thematic cartography that deals with the interpretation and representation, in the form of maps, of those spatial and temporal phenomena that pertain to flora, vegetation, vegetated landscapes, vegetation zones, and phytogeographical units. The production of a geobotanical map represents the last stage in a cognitive process that begins with observations in the field and continues with the collection of sample data, interpretation of the phenomena observed, and their appropriate cartographic representation; geobotanical cartography is closely tied to the concepts and scope of geobotany in general. Note de contenu : 1. Geobotanical mapping and its levels of study 2. Mapping populations 3. Mapping synusiae 4. Chorological mapping 5. Mapping vegetation 6. Types of vegetation maps 7. Examples of vegetation maps 8. Mapping systems of dynamically related communities 9. Phytogeographical mapping 10. Mapping vegetation zones and belts 11. Mapping plant biodiversity 12. Applied geobotanical mapping 13. Geobotanical mapping in Italy 14. Mapping environments Numéro de notice : 20986 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET/GEOMATIQUE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63193

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vol 22 n° 4 - décembre 2012 – février 2013 - Méthodes et outils de la géomatique pour la Trame Verte et Bleue (Bulletin de Revue internationale de géomatique) / Michel Deshayes  

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