Relation of Chlorophyll Fluorescence Sensitive Reflectance Ratios to Carbon Flux Measurements of Montanne Grassland and Norway Spruce Forest Ecosystems in the Temperate Zone

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F12%3A43883646" target="_blank" >RIV/60076658:12310/12:43883646 - isvavai.cz</a>
Alternative codes found
RIV/67179843:_____/12:00377790 RIV/61988987:17310/12:A13015XY
Result on the web
<a href="http://dx.doi.org/10.1100/2012/705872" target="_blank" >http://dx.doi.org/10.1100/2012/705872</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1100/2012/705872" target="_blank" >10.1100/2012/705872</a>

Result language
angličtina
Original language name
Relation of Chlorophyll Fluorescence Sensitive Reflectance Ratios to Carbon Flux Measurements of Montanne Grassland and Norway Spruce Forest Ecosystems in the Temperate Zone
Original language description
We explored ability of reflectance vegetation indexes (VIs) related to chlorophyll fluorescence emission (R-686/R-630, R-740/R-800) and de-epoxidation state of xanthophyll cycle pigments (PRI, calculated as (R-531 - R-570)/(R-531 - R-570)) to track changes in the CO2 assimilation rate and Light Use Efficiency (LUE) in montane grassland and Norway spruce forest ecosystems, both at leaf and also canopy level. VIs were measured at two research plots using a ground-based high spatial/spectral resolution imaging spectroscopy technique. No significant relationship between VIs and leaf light-saturated CO2 assimilation (A(MAX)) was detected in instantaneous measurements of grassland under steady-state irradiance conditions. Once the temporal dimension and daily irradiance variation were included into the experimental setup, statistically significant changes in VIs related to tested physiological parameters were revealed. Delta PRI and Delta(R-686/R-630) of grassland plant leaves under dark-to-
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EH - Ecology - communities
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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