DOI: 10.1002/2015GL063201
论文题名: Solar-induced chlorophyll fluorescence that correlates with canopy photosynthesis on diurnal and seasonal scales in a temperate deciduous forest
作者: Yang X. ; Tang J. ; Mustard J.F. ; Lee J.-E. ; Rossini M. ; Joiner J. ; Munger J.W. ; Kornfeld A. ; Richardson A.D.
刊名: Geophysical Research Letters
ISSN: 0094-8738
EISSN: 1944-8469
出版年: 2015
卷: 42, 期: 8 起始页码: 2977
结束页码: 2987
语种: 英语
英文关键词: carbon cycle
; chlorophyll fluorescence
; gross primary production
; plant physiology
; remote sensing
; spectroscopy
Scopus关键词: Chlorophyll
; Fluorescence
; Remote sensing
; Spectroscopy
; Surface measurement
; Carbon cycles
; Chlorophyll fluorescence
; Global ozone monitoring experiments
; Gross primary production
; Near-surface measurements
; Photosynthetically active radiation
; Plant physiology
; Temperate deciduous forest
; Forestry
; chlorophyll
; deciduous forest
; net primary production
; photosynthesis
; solar radiation
; temperate forest
; time series
英文摘要: Previous studies have suggested that solar-induced chlorophyll fluorescence (SIF) is correlated with Gross Primary Production (GPP). However, it remains unclear to what extent this relationship is due to absorbed photosynthetically active radiation (APAR) and/or light use efficiency (LUE). Here we present the first time series of near-surface measurement of canopy-scale SIF at 760 nm in temperate deciduous forests. SIF correlated with GPP estimated with eddy covariance at diurnal and seasonal scales (r2 = 0.82 and 0.73, respectively), as well as with APAR diurnally and seasonally (r2 = 0.90 and 0.80, respectively). SIF/APAR is significantly positively correlated with LUE and is higher during cloudy days than sunny days. Weekly tower-based SIF agreed with SIF from the Global Ozone Monitoring Experiment-2 (r2 = 0.82). Our results provide ground-based evidence that SIF is directly related to both APAR and LUE and thus GPP, and confirm that satellite SIF can be used as a proxy for GPP. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929507664&doi=10.1002%2f2015GL063201&partnerID=40&md5=d22453ea7e415e6ea6079c87806eeea9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8354
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: Department of Earth, Environment and Planetary Sciences, Brown University, Providence, RI, United States
Recommended Citation:
Yang X.,Tang J.,Mustard J.F.,et al. Solar-induced chlorophyll fluorescence that correlates with canopy photosynthesis on diurnal and seasonal scales in a temperate deciduous forest[J]. Geophysical Research Letters,2015-01-01,42(8).