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Resultats globals: 3 registres trobats en 0.01 segons.
Articles, 3 registres trobats
Articles 3 registres trobats  
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  
Registre complet - Creative Commons
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  
Registre complet - Creative Commons
3.
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  
Registre complet - Creative Commons

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