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Article: Spatio-Temporal Convergence of Maximum Daily Light-Use Efficiency Based on Radiation Absorption by Canopy Chlorophyll

TitleSpatio-Temporal Convergence of Maximum Daily Light-Use Efficiency Based on Radiation Absorption by Canopy Chlorophyll
Authors
Keywordsproduction efficiency models
photosynthetic capacity
optical vegetation activity indicator
gross primary productivity
fraction of absorbed photosynthetic active radiation
solar-induced chlorophyll fluorescence
Issue Date2018
Citation
Geophysical Research Letters, 2018, v. 45, n. 8, p. 3508-3519 How to Cite?
Abstract©2018. American Geophysical Union. All Rights Reserved. Light-use efficiency (LUE), which quantifies the plants' efficiency in utilizing solar radiation for photosynthetic carbon fixation, is an important factor for gross primary production estimation. Here we use satellite-based solar-induced chlorophyll fluorescence as a proxy for photosynthetically active radiation absorbed by chlorophyll (APARchl) and derive an estimation of the fraction of APARchl (fPARchl) from four remotely sensed vegetation indicators. By comparing maximum LUE estimated at different scales from 127 eddy flux sites, we found that the maximum daily LUE based on PAR absorption by canopy chlorophyll (εchlmax), unlike other expressions of LUE, tends to converge across biome types. The photosynthetic seasonality in tropical forests can also be tracked by the change of fPARchl, suggesting the corresponding (εchlmax) to have less seasonal variation. This spatio-temporal convergence of LUE derived from fPARchl can be used to build simple but robust gross primary production models and to better constrain process-based models.
Persistent Identifierhttp://hdl.handle.net/10722/267086
ISSN
2023 Impact Factor: 4.6
2023 SCImago Journal Rankings: 1.850
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Yao-
dc.contributor.authorXiao, Xiangming-
dc.contributor.authorWolf, Sebastian-
dc.contributor.authorWu, Jin-
dc.contributor.authorWu, Xiaocui-
dc.contributor.authorGioli, Beniamino-
dc.contributor.authorWohlfahrt, Georg-
dc.contributor.authorCescatti, Alessandro-
dc.contributor.authorvan der Tol, Christiaan-
dc.contributor.authorZhou, Sha-
dc.contributor.authorGough, Christopher M.-
dc.contributor.authorGentine, Pierre-
dc.contributor.authorZhang, Yongguang-
dc.contributor.authorSteinbrecher, Rainer-
dc.contributor.authorArdö, Jonas-
dc.date.accessioned2019-01-31T07:20:28Z-
dc.date.available2019-01-31T07:20:28Z-
dc.date.issued2018-
dc.identifier.citationGeophysical Research Letters, 2018, v. 45, n. 8, p. 3508-3519-
dc.identifier.issn0094-8276-
dc.identifier.urihttp://hdl.handle.net/10722/267086-
dc.description.abstract©2018. American Geophysical Union. All Rights Reserved. Light-use efficiency (LUE), which quantifies the plants' efficiency in utilizing solar radiation for photosynthetic carbon fixation, is an important factor for gross primary production estimation. Here we use satellite-based solar-induced chlorophyll fluorescence as a proxy for photosynthetically active radiation absorbed by chlorophyll (APARchl) and derive an estimation of the fraction of APARchl (fPARchl) from four remotely sensed vegetation indicators. By comparing maximum LUE estimated at different scales from 127 eddy flux sites, we found that the maximum daily LUE based on PAR absorption by canopy chlorophyll (εchlmax), unlike other expressions of LUE, tends to converge across biome types. The photosynthetic seasonality in tropical forests can also be tracked by the change of fPARchl, suggesting the corresponding (εchlmax) to have less seasonal variation. This spatio-temporal convergence of LUE derived from fPARchl can be used to build simple but robust gross primary production models and to better constrain process-based models.-
dc.languageeng-
dc.relation.ispartofGeophysical Research Letters-
dc.subjectproduction efficiency models-
dc.subjectphotosynthetic capacity-
dc.subjectoptical vegetation activity indicator-
dc.subjectgross primary productivity-
dc.subjectfraction of absorbed photosynthetic active radiation-
dc.subjectsolar-induced chlorophyll fluorescence-
dc.titleSpatio-Temporal Convergence of Maximum Daily Light-Use Efficiency Based on Radiation Absorption by Canopy Chlorophyll-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1029/2017GL076354-
dc.identifier.scopuseid_2-s2.0-85045841812-
dc.identifier.volume45-
dc.identifier.issue8-
dc.identifier.spage3508-
dc.identifier.epage3519-
dc.identifier.eissn1944-8007-
dc.identifier.isiWOS:000435745500023-
dc.identifier.issnl0094-8276-

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