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Proceedings Paper

Fluorescence responses and photosynthetic rates of sunlit and shaded leaves of Italian alpine forest species: Summer 1997 ATOM-LIFT campaign
Author(s): Moon S. Kim; Giovanna Cecchi; Emmett W. Chappelle; Marco Bazzani; James E. McMurtrey; Lawrence A. Corp; R. Sandu; Daniele Tirelli
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Paper Abstract

Terrestrial vegetation studies were carried out in the Italian Northeastern Alps in Val Visdende. The measurement site was 15 Kilometers Northeast of the town of St. Stefano di Calore (Belluno), Italy. Measurements were acquired on a wooded site at the Italian Department of Forestry Station on species native to the Italian Alps. The species included spruce (Picea abies) and alder (Alnus incana) trees. Characterization was also made of the fluorescence responses of several under-story species such as Dactylorhiza fuchsii of the Orchidaceae family, Caltha palustris and Ranunculus ficaria of the Ranuncolcee family, and Trifolium pratense and Trifolium repens of the Leguminosae family. Terrestrial vegetation monitoring was conducted with the Italian FLIDAR remote sensing instrument mounted in a mobile van, the NASA/USDA Fluorescence Imaging System (FIS), and the Spectron SE-590 for optical properties. Photosynthetic CO2 gas exchange rates we made with LI-COR 6400 infrared gas analyzer. Pigments from the samples were extracted and analyzed with a Perkin Elmer Lamda 7 Spectrometer to determine pigment concentrations. Fluorescence responses were collected from vegetation samples grown under different ambient light regimes of sun-lit versus shaded. The vegetation showed different fluorescence characteristics. A fluorescence algorithm, (F740/F680)/F550, and rate of photosynthesis showed a strong linear relationship.

Paper Details

Date Published: 3 July 1998
PDF: 8 pages
Proc. SPIE 3382, Advances in Laser Remote Sensing for Terrestrial and Hydrographic Applications, (3 July 1998); doi: 10.1117/12.312617
Show Author Affiliations
Moon S. Kim, NASA Goddard Space Flight Ctr. (United States)
Giovanna Cecchi, CNR Istituto di Ricerca sulle Onde Elettromagnetiche Nello Carrara (Italy)
Emmett W. Chappelle, NASA Goddard Space Flight Ctr. (United States)
Marco Bazzani, CNR Istituto di Ricerca sulle Onde Elettromagnetiche Nello Carrara (Italy)
James E. McMurtrey, USDA Agricultural Research Service (United States)
Lawrence A. Corp, NASA Goddard Space Flight Ctr. (United States)
R. Sandu, Troy State Univ. (United States)
Daniele Tirelli, CNR Istituto di Ricerca sulle Onde Elettromagnetiche Nello Carrara (Italy)


Published in SPIE Proceedings Vol. 3382:
Advances in Laser Remote Sensing for Terrestrial and Hydrographic Applications
Ram Mohan Narayanan; James E. Kalshoven, Editor(s)

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