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Termes IGN > foresterie > sylviculture
sylviculture
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Arboriculture, Arboriculture forestière, Arbres -- Techniques culturales, Cultures forestières, Forêts -- Techniques culturales, Forêts et sylviculture, Techniques forestières. Agriculture. >> Industrie forestière, Bois, Forêt -- Exploitation, Forêt, Machine forestière. Voir aussi les vedettes commençant par Forêts ; Foresterie ; Sylviculture. >>Terme(s) spécifique(s) : Écorçage, Martelage (sylviculture), Arbre -- Abattage, Déboisement, Déchet d'abattage, Dendrométrie, Inventaire forestier, Route forestière, Station forestière -- Typologie, Sylviculture tropicale, Essartage, Éclaircie (sylviculture), Cloisonnement (sylviculture), Coupe à blanc, Dégagement (sylviculture). Equiv. LCSH : Forest and forestry. |
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Change detection techniques for canopy height growth measurements using airborne laser scanner data / X. Yu in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 12 (December 2006)
[article]
Titre : Change detection techniques for canopy height growth measurements using airborne laser scanner data Type de document : Article/Communication Auteurs : X. Yu, Auteur ; Juha Hyyppä, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 1339 - 1348 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] analyse diachronique
[Termes IGN] détection de changement
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] forêt boréale
[Termes IGN] hauteur des arbres
[Termes IGN] houppier
[Termes IGN] instrumentation Toposys
[Termes IGN] modèle numérique de surface
[Termes IGN] objet géographique ponctuel
[Termes IGN] Pinus sylvestris
[Termes IGN] semis de pointsRésumé : (Auteur) This paper analyzes the potential of airborne laser scanner data for measuring individual tree height growth in a boreal forest using 82 sample trees of Scots pine. Point clouds (10 points/m2, beam size 40 cm) illuminating 50 percent of the treetops were acquired in September 1998 and May 2003 with the Toposys 83 kHz lidar system. The reference height and height growth of pines were measured with a tacheometer in the field. Three different types of features were extracted from the point clouds representing each tree; they were the difference between the highest z values, the difference between the DSMs of the tree crown, and the differences between the 85th, 90th and 95th percentiles of the canopy height histograms corresponding to the crown. The best correspondence with the field measurements was achieved with an R2 value of 0.68 and a RMSE of 43 cm. The results indicate that it is possible to measure the growth of an individual tree with multi-temporal laser surveys. We also demonstrated a new algorithm for tree-to-tree matching. It is needed in operational growth estimation based on individual trees, especially in dense spruce forests. The method is based on minimizing the distances between treetops in the N- dimensional data space. The experiments showed that the use of the location (derived from laser data) and height of the trees were together adequate to provide reliable tree-to-tree matching. In the future, a fourth dimension (the crown area) should also be included in the matching. Copyright ASPRS Numéro de notice : A2006-543 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.14358/PERS.72.12.1339 En ligne : https://doi.org/10.14358/PERS.72.12.1339 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28266
in Photogrammetric Engineering & Remote Sensing, PERS > vol 72 n° 12 (December 2006) . - pp 1339 - 1348[article]Examining the influence of changing laser pulse repetition frequencies on conifer forest canopy returns / Laura Chasmer in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 12 (December 2006)
[article]
Titre : Examining the influence of changing laser pulse repetition frequencies on conifer forest canopy returns Type de document : Article/Communication Auteurs : Laura Chasmer, Auteur ; Christopher Hopkinson, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 1359 - 1367 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] ALTM
[Termes IGN] canopée
[Termes IGN] données lidar
[Termes IGN] données multitemporelles
[Termes IGN] forêt boréale
[Termes IGN] fréquence
[Termes IGN] impulsion laser
[Termes IGN] lasergrammétrie
[Termes IGN] onde radioélectrique
[Termes IGN] Pinophyta
[Termes IGN] surface du sol
[Termes IGN] télémétrie laser aéroporté
[Termes IGN] vibrationRésumé : (Auteur) The distribution of laser pulses within conifer forest trees and canopies are examined by varying the rate of laser pulse emission and the inherent laser pulse properties (laser pulse energy, pulse width, pulse length, and roll-over or trigger time). In this study, an Optech, Inc. ALTM 3100 airborne lidar is used, emitting pulses at 50 kHz and 100 kHz, allowing for changes in laser pulse characteristics while also keeping all other survey parameters equal. We found that:
1. Pulses and associated characteristics emitted at 50 kHz penetrated further into the canopy than 100 kHz for a significant number of individual trees.
2. At tall tree plots with no understory, pulses emitted at 50 kHz penetrated further into the canopy than 100 kHz for a significant number of plots.
3. For plots with significant understory and shorter trees, pulses emitted at 100 kHz penetrated further into the canopy than 50 kHz. We suspect that this may be due, in part, to canopy openness.
Laser pulse energy and character differences associated with different laser pulse emission frequencies are likely a contributing factor in laser pulse penetration through the canopy to the ground surface. Efforts to understand laser pulse character influences on canopy returns are important as biomass and vegetation structure models derived from lidar are increasingly adopted. Copyright ASPRSNuméro de notice : A2006-544 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.14358/PERS.72.12.1359 En ligne : https://doi.org/10.14358/PERS.72.12.1359 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28267
in Photogrammetric Engineering & Remote Sensing, PERS > vol 72 n° 12 (December 2006) . - pp 1359 - 1367[article]IFSAR, an emerging technology for mapping the rainforest: no topography and weather constraints / F. Artes in Geoinformatics, vol 9 n° 7 (01/11/2006)
[article]
Titre : IFSAR, an emerging technology for mapping the rainforest: no topography and weather constraints Type de document : Article/Communication Auteurs : F. Artes, Auteur Année de publication : 2006 Article en page(s) : pp 30 - 33 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] carte d'occupation du sol
[Termes IGN] carte de la végétation
[Termes IGN] forêt équatoriale
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétiqueRésumé : (Auteur) In today's geo-technology arsenal, Interferometric Synthetic Aperture Radar (IfSAR) is quickly emerging as one of the most efficient tools for generating fast, accurate, and cost-effective digital topographic data. With its ability to penetrate clouds, rain, vegetation and even soil, IfSAR has found a unique role by being able to successfully map some of the more inaccessible and rugged equatorial rainforest areas around the world. Copyright GEOinformatics Numéro de notice : A2006-479 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28203
in Geoinformatics > vol 9 n° 7 (01/11/2006) . - pp 30 - 33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-06071 SL Revue Centre de documentation Revues en salle Disponible Reactions to geovisualization: an experience from a European project / Gennady Andrienko in International journal of geographical information science IJGIS, vol 20 n° 10 (november 2006)
[article]
Titre : Reactions to geovisualization: an experience from a European project Type de document : Article/Communication Auteurs : Gennady Andrienko, Auteur ; Natalia Andrienko, Auteur ; R. Fischer, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 1149 - 1171 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Information géographique
[Termes IGN] données localisées
[Termes IGN] exploration de données géographiques
[Termes IGN] sylviculture
[Termes IGN] visualisation de donnéesRésumé : (Auteur) The paper is written jointly by two parties, computer scientists specializing in geovisualization and experts in forestry, who cooperated within a joint project. The authors tell a story about an attempt of the geovisualizers to introduce the foresters to the concept and principles of exploratory data analysis and to the use of visualization for systematic and comprehensive data exploration. This endeavor should be considered as an informal experiment rather than a rigorous scientific study. Unlike customary tests of the usability of specific tools and techniques, the geovisualizers did not give the forestry specialists a series of tasks to carry out by applying geovisualization tools and did not try to measure how well the foresters performed. The idea of the geovisualizers was to demonstrate the principles and power of exploratory data analysis to the foresters by example. For this purpose, the geovisualizers performed an exploration of a non-trivial data set by themselves and reported the procedure, the principles, the techniques, and the findings to the foresters. The reaction of the foresters uncovered a range of fundamental issues that are relevant to geovisualization and information visualization research. The authors analyze these issues from their perspectives and formulate a set of questions which researchers in geovisualization should be asking. Copyright Taylor & Francis Numéro de notice : A2006-454 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE Nature : Article DOI : 10.1080/13658810600816524 En ligne : https://doi.org/10.1080/13658810600816524 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28178
in International journal of geographical information science IJGIS > vol 20 n° 10 (november 2006) . - pp 1149 - 1171[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-06101 RAB Revue Centre de documentation En réserve L003 Disponible 079-06102 RAB Revue Centre de documentation En réserve L003 Disponible Sageo 2006 : du spatial au spatio-temporel / Françoise de Blomac in SIG la lettre, n° 80 (octobre 2006)
[article]
Titre : Sageo 2006 : du spatial au spatio-temporel Type de document : Article/Communication Auteurs : Françoise de Blomac, Auteur Année de publication : 2006 Article en page(s) : pp 14 - 15 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse multicritère
[Termes IGN] Corine Land Cover
[Termes IGN] déboisement
[Termes IGN] dimension fractale
[Termes IGN] données spatiotemporelles
[Termes IGN] France (administrative)
[Termes IGN] image Landsat
[Termes IGN] Mato Grosso
[Termes IGN] modèle conceptuel de données spatio-temporelles
[Termes IGN] modèle de simulation
[Termes IGN] pollution atmosphérique
[Termes IGN] surveillance sanitaire
[Termes IGN] zone urbaineRésumé : (Auteur) Dans le domaine de la recherche, géographes et autres thématiciens utilisateurs de SIG confrontent régulièrement leurs expériences à celles des informaticiens qui inventent de nouveaux moyens de modélisation de l'espace. Désormais, ces deux communautés ont trouvé un langage commun, et certaines équipes n'hésitent pas à mêler les deux approches, au service de thématiques variées qui vont de l'épidémiologie à la géomorphologie en passant par l'exposition aux risques. De plus en plus, la composante temporelle devient indissociable de la composante spatiale, posant de nouveaux défis aux outils et aux modèles. Copyright SIG La Lettre Numéro de notice : A2006-408 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28132
in SIG la lettre > n° 80 (octobre 2006) . - pp 14 - 15[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 286-06081 RAB Revue Centre de documentation En réserve L003 Disponible Machine à écorcer Stihl MC 200 / Renaud Piazzetta in Info Liège, n° 13 (automne-hiver 2006)PermalinkThe use of optic and radar satellite data for coastal environments / Z.D. Uca in International Journal of Remote Sensing IJRS, vol 27 n° 17 (September 2006)PermalinkDetection of forest decline using Ikonos sensor for cork oak (Quercus suber l.) woods in south Spain / F. Cano in Geocarto international, vol 21 n° 3 (September - November 2006)PermalinkA spatial approach to forest-management optimization: linking GIS and multiple objective genetic algorithms / E.I. Ducheyne in International journal of geographical information science IJGIS, vol 20 n° 8 (september 2006)PermalinkAssessment of forest structure with airborne LiDAR and the effects of platform altitude / N.R. Goodwin in Remote sensing of environment, vol 103 n° 2 (30/07/2006)PermalinkTree cover and height estimation in the Fennoscandian tundra-taiga transition zone using multiangular MISR data / J. Heiskanen in Remote sensing of environment, vol 103 n° 1 (15 July 2006)PermalinkIncorporating domain knowledge and spatial relationships into land cover classifications: a rule-based approach / A.E. Daniels in International Journal of Remote Sensing IJRS, vol 27 n°12-13-14 (July 2006)PermalinkBase cation cycling in a pristine watershed of the Canadian boreal forest / Louis Duchesne in Biogeochemistry, vol 78 n° 2 (April 2006)PermalinkAn empirical investigation of cross-sensor relationships of NDVI and red/near-infrared reflectance using EO-1 Hyperion data / T. Miura in Remote sensing of environment, vol 100 n° 2 (30 January 2006)PermalinkApports de la télédétection et des SIG à la définition de la sensibilité des sols à l'érosion et au suivi de l'occupation du sol sur l'ile d'Anjouan / A. Amir (2006)Permalink