Descripteur
Termes IGN > sciences naturelles > sciences de la vie > biologie > botanique > phytobiologie > photosynthèse
photosynthèseSynonyme(s)conversion héliochimique conversion photosynthétiqueVoir aussi |
Documents disponibles dans cette catégorie (36)
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Effects of topography on radiance from upland vegetation in north Wales / A.G. Thomson in International Journal of Remote Sensing IJRS, vol 11 n° 5 (May 1990)
[article]
Titre : Effects of topography on radiance from upland vegetation in north Wales Type de document : Article/Communication Auteurs : A.G. Thomson, Auteur ; C. Jones, Auteur Année de publication : 1990 Article en page(s) : pp 829 - 840 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] détail topographique
[Termes IGN] flore locale
[Termes IGN] Pays de Galles
[Termes IGN] pente
[Termes IGN] photosynthèse
[Termes IGN] pixel
[Termes IGN] prairie
[Termes IGN] radiance
[Termes IGN] Thematic MapperRésumé : (Auteur) Radiance data from a Landsat 5 Thematic Mapper image were used to study terrain effects in 284 4 pixel by 4 pixel quadrats in upland North Wales. The three semi-natural vegetation types examined responded differently to variations in slope and aspect. Short-cropped Agrostis grassland was the most uniform type ; and it reflected radiation in a solar-orientated diffuse manner. Variations in radiance detected from two rougher vegetation types suggested environmentally induced heterogeneity within the vegetation cover, related to aspect (Nardus grassland) or slope (Calluna heathland). The difference between reflected red and green light is proposed as a crude measure of photosynthesis that can discriminate between broad vegetation categories in undulating terrain. Numéro de notice : A1990-090 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431169008955058 En ligne : https://doi.org/10.1080/01431169008955058 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25507
in International Journal of Remote Sensing IJRS > vol 11 n° 5 (May 1990) . - pp 829 - 840[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-90051 RAB Revue Centre de documentation En réserve L003 Disponible Relative photosynthetic activity of agricultural lands from airborne carbon dioxide and satellite data / A.R. Mack in International Journal of Remote Sensing IJRS, vol 11 n° 2 (February 1990)
[article]
Titre : Relative photosynthetic activity of agricultural lands from airborne carbon dioxide and satellite data Type de document : Article/Communication Auteurs : A.R. Mack, Auteur ; R.L. Desjardins, Auteur ; J.I. Mcpherson, Auteur ; P.H. Schuepp, Auteur Année de publication : 1990 Article en page(s) : pp 237 - 251 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] chlorophylle
[Termes IGN] dioxyde de carbone
[Termes IGN] flore locale
[Termes IGN] image Landsat-MSS
[Termes IGN] Manitoba (Canada)
[Termes IGN] photosynthèse
[Termes IGN] surface cultivéeNuméro de notice : A1990-049 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431169008955016 En ligne : https://doi.org/10.1080/01431169008955016 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25467
in International Journal of Remote Sensing IJRS > vol 11 n° 2 (February 1990) . - pp 237 - 251[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-90021 RAB Revue Centre de documentation En réserve L003 Disponible Use of vegetation indices to estimate intercepted solar radiation and net carbon dioxide exchange of a grass canopy / D.S. Bartlett in Remote sensing of environment, vol 30 n° 2 (November 1989)
[article]
Titre : Use of vegetation indices to estimate intercepted solar radiation and net carbon dioxide exchange of a grass canopy Type de document : Article/Communication Auteurs : D.S. Bartlett, Auteur ; G.J. Whiting, Auteur ; J.M. Hartman, Auteur Année de publication : 1989 Article en page(s) : pp 115 - 128 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] dioxyde de carbone
[Termes IGN] herbe
[Termes IGN] image Landsat-TM
[Termes IGN] indice de végétation
[Termes IGN] photosynthèse
[Termes IGN] rayonnement solaire
[Termes IGN] réflectance végétaleRésumé : (auteur) Photosynthesis, respiration, and decomposition in terrestrial plant communities consume and produce large amounts of carbon dioxide (CO2) and play an important role in the global cycle of carbon. Recent studies have suggested that satellite remote sensing may be useful in providing the extensive data sets needed to quantify these processes over large areas, but many of the factors which potentially limit the accuracy of the analysis in natural vegetation have not been examined experimentally. We have conducted field experiments relating spectral reflectance to intercepted photosynthetically active radiation (PAR) and net CO2 exchange in a natural canopy composed of the tidal wetland grass Spartina alterniflora (marsh cordgrass). Reflectance measurements made by a hand-held radiometer with Landsat Thematic Mapper spectral wavebands were used to compute remote sensing indices such as the normalized difference vegetation index (NDVI). Net CO2 exchange was measured in a clear, climate-controlled chamber placed over square meter plots of the canopy. The NDVI was near-linearly related to the proportion of solar PAR intercepted by green plant material. The relationship was not as strong as has been reported for growing agricultural canopies, but the regression model form persisted throughout the growing season (March through October) and was applicable to a wide variety of growth forms exhibiting different proportions of green foliage. NDVI was also near-linearly related to net CO2 exchange rates throughout the growing season and in plots subjected to varying levels of chronic stress. However, significant uncertainty in the relationship was produced by changes in photosynthetic efficiency in response to varying environmental conditions. Estimates of CO2 exchange based on NDVI were improved if the effect of ambient air temperature on net photosynthesis was assessment of photosynthesis and net gas exchange in natural vegetation is feasible, particularly if the analysis incorporates information on biological responses to environmental variables. Numéro de notice : A1989-074 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/0034-4257(89)9 En ligne : https://doi.org/10.1016/0034-4257(89)90054-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=87484
in Remote sensing of environment > vol 30 n° 2 (November 1989) . - pp 115 - 128[article]Continental scale variability in vegetation reflectance and its relationship to canopy morphology / D.S. Bartlett in International Journal of Remote Sensing IJRS, vol 9 n° 7 (July 1988)
[article]
Titre : Continental scale variability in vegetation reflectance and its relationship to canopy morphology Type de document : Article/Communication Auteurs : D.S. Bartlett, Auteur ; M.A. Hardisky, Auteur ; R.W. Johnson, Auteur ; M.F. Gross, Auteur ; V. Klemas, Auteur Année de publication : 1988 Article en page(s) : pp 1223 - 1241 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Caroline du Sud (Etats-Unis)
[Termes IGN] continent
[Termes IGN] couvert végétal
[Termes IGN] Delaware (Etats-Unis)
[Termes IGN] flore locale
[Termes IGN] latitude
[Termes IGN] photosynthèse
[Termes IGN] réflectance végétale
[Termes IGN] Virginie (Etats-Unis)Numéro de notice : A1988-024 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431168808954930 En ligne : https://doi.org/10.1080/01431168808954930 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=24603
in International Journal of Remote Sensing IJRS > vol 9 n° 7 (July 1988) . - pp 1223 - 1241[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-88071 RAB Revue Centre de documentation En réserve L003 Disponible Modelling planting configuration and canopy architecture effects on diurnal light absorption changes in cotton / A.J. Richardson in International Journal of Remote Sensing IJRS, vol 9 n° 4 (April 1988)
[article]
Titre : Modelling planting configuration and canopy architecture effects on diurnal light absorption changes in cotton Type de document : Article/Communication Auteurs : A.J. Richardson, Auteur ; C.L. Wiegand, Auteur Année de publication : 1988 Article en page(s) : pp 701 - 714 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] absorption
[Termes IGN] éclairement lumineux
[Termes IGN] Gossypium (genre)
[Termes IGN] photosynthèse
[Termes IGN] radiométrie
[Termes IGN] réflectance
[Termes IGN] Texas (Etats-Unis)Numéro de notice : A1988-065 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431168808954887 En ligne : https://doi.org/10.1080/01431168808954887 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=24644
in International Journal of Remote Sensing IJRS > vol 9 n° 4 (April 1988) . - pp 701 - 714[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-88041 RAB Revue Centre de documentation En réserve L003 Disponible Relating seasonal patterns of the AVHRR vegetation index to simulated photosynthesis and transpiration of forests in different climates / S.W. Running in Remote sensing of environment, vol 24 n° 2 (March 1988)PermalinkExtraction of spectral hemispherical reflectance (albedo) of surfaces from nadir and directional reflectance data / D.S. Kimes in International Journal of Remote Sensing IJRS, vol 8 n° 12 (December 1987)PermalinkSatellite remote sensing of drought conditions / C.J. Tucker in Remote sensing of environment, vol 23 n° 2 (01/11/1987)PermalinkMonitoring wheat canopies with a high spectral resolution radiometer / F. Baret in Remote sensing of environment, vol 22 n° 3 (01/08/1987)PermalinkRelationships between vegetation indices, radiation absorption and net photosynthesis evaluated by a sensitivity analysis / B.J. Choudhury in Remote sensing of environment, vol 22 n° 2 (01/07/1987)PermalinkCanopy reflectance, photosynthesis, and transpiration : the role of biophysics in the linearity of their interdependence / P.J. Sellers in Remote sensing of environment, vol 21 n° 2 (01/03/1987)PermalinkTechnical papers 1986 ACSM-ASPRS annual convention : ACSM 46th annual meeting, ASPRS 52nd annual meeting, Volume 5. Remote sensing / American society for photogrammetry and remote sensing (1986)Permalink