DOI: 10.1002/2014GL062943
论文题名: Red and far red Sun-induced chlorophyll fluorescence as a measure of plant photosynthesis
作者: Rossini M. ; Nedbal L. ; Guanter L. ; Ač A. ; Alonso L. ; Burkart A. ; Cogliati S. ; Colombo R. ; Damm A. ; Drusch M. ; Hanus J. ; Janoutova R. ; Julitta T. ; Kokkalis P. ; Moreno J. ; Novotny J. ; Panigada C. ; Pinto F. ; Schickling A. ; Schüttemeyer D. ; Zemek F. ; Rascher U.
刊名: Geophysical Research Letters
ISSN: 0094-8834
EISSN: 1944-8565
出版年: 2015
卷: 42, 期: 6 起始页码: 1632
结束页码: 1639
语种: 英语
英文关键词: airborne images
; HyPlant
; remote sensing
; stress detection
; Sun-induced fluorescence
Scopus关键词: Chlorophyll
; Herbicides
; Photosynthesis
; Remote sensing
; Weed control
; Airborne images
; Airborne imaging spectrometers
; Chlorophyll fluorescence
; HyPlant
; Photosynthetic efficiency
; Spatio-temporal variation
; Stress detection
; Terrestrial vegetation
; Fluorescence
; accuracy assessment
; airborne sensing
; chlorophyll
; fluorescence
; grass
; mapping
; photosynthesis
; plant community
英文摘要: Remote estimation of Sun-induced chlorophyll fluorescence emitted by terrestrial vegetation can provide an unparalleled opportunity to track spatiotemporal variations of photosynthetic efficiency. Here we provide the first direct experimental evidence that the two peaks of the chlorophyll fluorescence spectrum can be accurately mapped from high-resolution radiance spectra and that the signal is linked to variations in actual photosynthetic efficiency. Red and far red fluorescence measured using a novel airborne imaging spectrometer over a grass carpet treated with an herbicide known to inhibit photosynthesis was significantly higher than the corresponding signal from an equivalent untreated grass carpet. The reflectance signal of the two grass carpets was indistinguishable, confirming that the fast dynamic changes in fluorescence emission were related to variations in the functional status of actual photosynthesis induced by herbicide application. Our results from a controlled experiment at the local scale illustrate the potential for the global mapping of terrestrial photosynthesis through space-borne measurements of chlorophyll fluorescence. Key Points A novel high-resolution airborne sensor is flown Both red and far red Sun-induced fluorescence signals are accurately quantified Red and far red fluorescence tracks variations in photosynthetic efficiency ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927785648&doi=10.1002%2f2014GL062943&partnerID=40&md5=6fed22ee5d74f88c0a016b910a7a0455
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8450
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Remote Sensing of Environmental Dynamics Lab., DISAT, Università Degli Studi Milano-Bicocca, Milan, Italy
Recommended Citation:
Rossini M.,Nedbal L.,Guanter L.,et al. Red and far red Sun-induced chlorophyll fluorescence as a measure of plant photosynthesis[J]. Geophysical Research Letters,2015-01-01,42(6).