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Resultados globales: 7 registros encontrados en 0.03 segundos.
Artículos, Encontrados 7 registros
Artículos Encontrados 7 registros  
1.
Estimation of photosynthetic dynamics in forests from daily measured fluorescence and PRI data with adjustment for canopy shadow fraction / Kováč, Daniel (Czech Academy of Sciences. Global Change Research Institute) ; Novotný, Jan (Czech Academy of Sciences. Global Change Research Institute) ; Šigut, Ladislav (Czech Academy of Sciences. Global Change Research Institute) ; Ač, Alexander (Czech Academy of Sciences. Global Change Research Institute) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Grace, John (University of Edinburgh. School of GeoSciences) ; Urban, Otmar (Czech Academy of Sciences. Global Change Research Institute)
We conducted year-long measurements of the photochemical reflectance index (PRI) and solar-induced fluorescence in the O2A oxygen band (SIFA) at a Norway spruce forest and a European beech forest to study relationships of these remote sensing variables to photosynthesis by trees in grown forest stands. [...]
2023 - 10.1016/j.scitotenv.2023.166386
Science of the total environment, Vol. 898 (Nov. 2023) , art. 166386  
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2.
41 p, 838.7 KB Correction of PRI for carotenoid pigment pools improves photosynthesis estimation across different irradiance and temperature conditions / Kováč, Daniel (Global Change Research Institute CAS) ; Veselá, Barbora (Czech Academy of Sciences. Global Change Research Institute) ; Klem, Karel (Czech Academy of Sciences. Global Change Research Institute) ; Večeřová, Kristýna (Global Change Research Institute CAS) ; Materová Kmeco, Zuzana (Ostrava University) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Urban, Otmar (Global Change Research Institute CAS)
We studied the influence of changing carotenoid pigments on the sensitivity of the photochemical reflectance index (PRI) to photosynthesis dynamics. The goal of the measurements was to examine how the introduction of ΔPRI into the working dataset can improve the estimation of photosynthesis. [...]
2020 - 10.1016/j.rse.2020.111834
Remote sensing of environment, Vol. 244 (July 2020) , art. 111834  
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3.
11 p, 1.9 MB Assessing ecosystem isoprene emissions by hyperspectral remote sensing / Balzarolo, Manuela (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Portillo-Estrada, Miguel (University of Antwerp. Center of Excellence PLECO) ; Ceulemans, Reinhart (University of Antwerp. Center of Excellence PLECO)
This study examined the relationship between foliar isoprene emissions, light use efficiency and photochemical reflectance index (PRI) throughout the canopy profile and explored the contribution of xanthophyll cycle pigments versus other carotenoid pigments to the isoprene/PRI relationship. [...]
2018 - 10.3390/rs10071086
Remote sensing (Basel), Vol. 10, Núm. 7 (July 2018) , art. 1086  
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4.
27 p, 2.9 MB Potential of Photochemical reflectance index for indicating photochemistry and light use efficiency in leaves of European beech and Norway spruce trees / Kováč, Daniel (Global Change Research Institute CAS) ; Veselovská, Petra (Global Change Research Institute CAS) ; Klem, Karel (Global Change Research Institute CAS) ; Večeřová, Kristýna (Global Change Research Institute CAS) ; Ač, Alexander (Global Change Research Institute CAS) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Urban, Otmar (Global Change Research Institute CAS)
Hyperspectral reflectance is becoming more frequently used for measuring the functions and productivity of ecosystems. The purpose of this study was to re-evaluate the potential of the photochemical reflectance index (PRI) for evaluating physiological status of plants. [...]
2018 - 10.3390/rs10081202
Remote sensing (Basel), Vol. 10, Núm. 8 (July 2018) , art. 1202  
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5.
21 p, 1.8 MB Photochemical reflectance index (PRI) for detecting responses of diurnal and seasonal photosynthetic activity to experimental drought and warming in a Mediterranean shrubland / Zhang, Chao (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Liu, Daijun (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Ogaya Inurrigarro, Romà (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Llusià Benet, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Asensio, Dolores (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Climatic warming and drying are having profound impacts on terrestrial carbon cycling by altering plant physiological traits and photosynthetic processes, particularly for species in the semi-arid Mediterranean ecosystems. [...]
2017 - 10.3390/rs9111189
Remote sensing (Basel), Vol. 9, Issue 11 (November 2017) , art. 1189  
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6.
14 p, 2.0 MB Assessment of the response of photosynthetic activity of Mediterranean evergreen oaks to enhanced drought stress and recovery by using PRI and R690/R630 / Zhang, Chao (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Preece, Catherine (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
The photochemical reflectance index (PRI) and red-edge region of the spectrum are known to be sensitive to plant physiological processes, and through measurement of these optical signals it is possible to use non-invasive remote sensing to monitor the plant photosynthetic status in response to environmental stresses such as drought. [...]
2017 - 10.3390/f8100386
Forests, Vol. 8, issue 10 (Oct. 2017) , art. 386  
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7.
33 p, 5.0 MB Affecting factors and recent improvements of the photochemical reflectance index (PRI) for remotely sensing foliar, canopy and ecosystemic radiation-use efficiencies / Zhang, Chao (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Filella, Iolanda (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Garbulsky, Martín Fabio (University of Buenos Aires. Facultad de Agronomía) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Accurately assessing terrestrial gross primary productivity (GPP) is crucial for characterizing the climate-carbon cycle. Remotely sensing the photochemical reflectance index (PRI) across vegetation functional types and spatiotemporal scales has received increasing attention for monitoring photosynthetic performance and simulating GPP over the last two decades. [...]
2016 - 10.3390/rs8090677
Remote sensing (Basel), Vol. 8, issue 9 (Aug. 2016) , p. 1-33  
Registro completo - Creative Commons

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