Leaf-level chlorophyll fluorescence and reflectance spectra of high latitude plants

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dc.contributor.authorHuemmrich, Karl
dc.contributor.authorCampbell, Petya Entcheva
dc.contributor.authorVargas Zesati, Sergio A
dc.contributor.authorSackett, Sarah
dc.contributor.authorUnger, Steven
dc.contributor.authorMay, Jeremy
dc.contributor.authorTweedie, Craig E
dc.contributor.authorMiddleton, Elizabeth M
dc.date.accessioned2022-03-18T15:16:09Z
dc.date.available2022-03-18T15:16:09Z
dc.date.issued2022-03-15
dc.description.abstractLittle is known about the chlorophyll fluorescence spectra for high latitude plants. A FluoWat leaf clip was used to measure leaf-level reflectance and chlorophyll fluorescence spectra of leaves of common high latitude plants to examine general spectral characteristics of these species. Fluorescence yield (Fyield) was calculated as the ratio of the emitted fluorescence divided by the absorbed radiation for the wavelengths from 400 nm up to the wavelength of the cut-off for the FluoWat low pass filter (either 650 or 700 nm). The Fyield spectra grouped into distinctly different patterns among different plant functional types. Black spruce (Picea mariana) Fyield spectra had little red fluorescence, which was reabsorbed in the shoot, but displayed a distinct far-red peak. Quaking aspen (Populus tremuloides) had both high red and far-red Fyield peaks, as did sweet coltsfoot (Petasites frigidus). Cotton grass (Eriophorum spp.) had both red and far-red Fyield peaks, but these peaks were much lower than for aspen or coltsfoot. Sphagnum moss (Sphagnum spp.) had a distinct Fyield red peak but low far-red fluorescence. Reindeer moss lichen (Cladonia rangiferina) had very low fluorescence levels, although when damp displayed a small red Fyield peak. These high latitude vegetation samples showed wide variations in Fyield spectral shapes. The Fyield values for the individual red or far-red peaks were poorly correlated to chlorophyll content, however the ratio of far-red to red Fyield showed a strong correlation with chlorophyll content. The spectral variability of these plants may provide information for remote sensing of vegetation type but may also confound attempts to measure high latitude vegetation biophysical characteristics and function using solar induced fluorescence (SIF).en_US
dc.description.sponsorshipThese data are available at: Huemmrich, K.F., and P.K. Campbell. 2021. Tundra Plant Leaf-level Spectral Reflectance, Chlorophyll Fluorescence Spectra. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2005. We thank the Iñupiat people, on whose land these samples were collected. This work is supported by NASA ABoVE grant 80NSSC19M0110.en_US
dc.description.urihttps://iopscience.iop.org/article/10.1088/2515-7620/ac5365/metaen_US
dc.format.extent12 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2uhgi-psrw
dc.identifier.citationHuemmrich, K. Fred, Petya Campbell, Sergio A. Vargas Z, Sarah Sackett, Steven Unger, Jeremy May, Craig Tweedie, and Elizabeth Middleton. “Leaf-Level Chlorophyll Fluorescence and Reflectance Spectra of High Latitude Plants.” Environmental Research Communications 4, no. 3 (March 2022): 035001. https://doi.org/10.1088/2515-7620/ac5365.en_US
dc.identifier.urihttps://doi.org/10.1088/2515-7620/ac5365
dc.identifier.urihttp://hdl.handle.net/11603/24398
dc.language.isoen_USen_US
dc.publisherIOP Scienceen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis is a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleLeaf-level chlorophyll fluorescence and reflectance spectra of high latitude plantsen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0003-4148-9108en_US
dcterms.creatorhttps://orcid.org/0000-0002-0505-4951en_US

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