Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1900278116 |
Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence | |
Magney, Troy S.1,2; Bowling, David R.3; Logan, Barry A.4; Grossmann, Katja5,8; Stutz, Jochen5; Blanken, Peter D.6; Burns, Sean P.6,7; Cheng, Rui1; Garcia, Maria A.3; Kohler, Philipp1; Lopez, Sophia4; Parazoo, Nicholas C.2; Raczka, Brett3; Schimel, David2; Frankenberg, Christian1,2 | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2019 |
卷号 | 116期号:24页码:11640-11645 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany |
英文摘要 | Northern hemisphere evergreen forests assimilate a significant fraction of global atmospheric CO2 but monitoring large-scale changes in gross primary production (GPP) in these systems is challenging. Recent advances in remote sensing allow the detection of solar-induced chlorophyll fluorescence (SIF) emission from vegetation, which has been empirically linked to GPP at large spatial scales. This is particularly important in evergreen forests, where traditional remote-sensing techniques and terrestrial biosphere models fail to reproduce the seasonality of GPP. Here, we examined the mechanistic relationship between SIF retrieved from a canopy spectrometer system and GPP at a winter-dormant conifer forest, which has little seasonal variation in canopy structure, needle chlorophyll content, and absorbed light. Both SIF and GPP track each other in a consistent, dynamic fashion in response to environmental conditions. SIF and GPP are well correlated (R-2 = 0.62-0.92) with an invariant slope over hourly to weekly timescales. Large seasonal variations in SIF yield capture changes in photoprotective pigments and photosystem II operating efficiency associated with winter acclimation, highlighting its unique ability to precisely track the seasonality of photosynthesis. Our results underscore the potential of new satellite-based SIF products (TROPOMI, OCO-2) as proxies for the timing and magnitude of GPP in evergreen forests at an unprecedented spatiotemporal resolution. |
英文关键词 | solar-induced fluorescence (SIF) remote sensing gross primary production (GPP) photosynthesis evergreen forest |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471039700018 |
WOS关键词 | INDUCED CHLOROPHYLL FLUORESCENCE ; GROSS PRIMARY PRODUCTION ; CARBON-DIOXIDE ; PRIMARY PRODUCTIVITY ; ENERGY-DISSIPATION ; XANTHOPHYLL CYCLE ; USE EFFICIENCY ; HIGH-ELEVATION ; CO2 EXCHANGE ; BOREAL |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/205126 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 2.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA; 3.Univ Utah, Sch Biol Sci, Salt Lake City, UT 84112 USA; 4.Bowdoin Coll, Dept Biol, Brunswick, ME 04287 USA; 5.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 6.Univ Colorado, Dept Geog, Boulder, CO 80309 USA; 7.Natl Ctr Atmospher Res, Mesoscale & Microscale Meteorol Lab, Boulder, CO 80301 USA; 8.Heidelberg Univ, Inst Environm Phys, D-69120 Heidelberg, Germany |
推荐引用方式 GB/T 7714 | Magney, Troy S.,Bowling, David R.,Logan, Barry A.,et al. Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(24):11640-11645. |
APA | Magney, Troy S..,Bowling, David R..,Logan, Barry A..,Grossmann, Katja.,Stutz, Jochen.,...&Frankenberg, Christian.(2019).Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(24),11640-11645. |
MLA | Magney, Troy S.,et al."Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.24(2019):11640-11645. |
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