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Article: Large diurnal compensatory effects mitigate the response of Amazonian forests to atmospheric warming and drying

TitleLarge diurnal compensatory effects mitigate the response of Amazonian forests to atmospheric warming and drying
Authors
Issue Date26-May-2023
PublisherAmerican Association for the Advancement of Science
Citation
Science Advances, 2023, v. 9, n. 21 How to Cite?
Abstract

Photosynthesis and evapotranspiration in Amazonian forests are major contributors to the global carbon and water cycles. However, their diurnal patterns and responses to atmospheric warming and drying at regional scale remain unclear, hindering the understanding of global carbon and water cycles. Here, we used proxies of photosynthesis and evapotranspiration from the International Space Station to reveal a strong depression of dry season afternoon photosynthesis (by 6.7 ± 2.4%) and evapotranspiration (by 6.1 ± 3.1%). Photosynthesis positively responds to vapor pressure deficit (VPD) in the morning, but negatively in the afternoon. Furthermore, we projected that the regionally depressed afternoon photosynthesis will be compensated by their increases in the morning in future dry seasons. These results shed new light on the complex interplay of climate with carbon and water fluxes in Amazonian forests and provide evidence on the emerging environmental constraints of primary productivity that may improve the robustness of future projections.


Persistent Identifierhttp://hdl.handle.net/10722/331063
ISSN
2023 Impact Factor: 11.7
2023 SCImago Journal Rankings: 4.483
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, ZY-
dc.contributor.authorCescatti, A-
dc.contributor.authorWang, YP-
dc.contributor.authorGentine, P-
dc.contributor.authorXiao, JF-
dc.contributor.authorGuanter, L-
dc.contributor.authorHuete, AR-
dc.contributor.authorWu, J-
dc.contributor.authorChen, JM-
dc.contributor.authorJu, WM-
dc.contributor.authorPenuelas, J-
dc.contributor.authorZhang, YG-
dc.date.accessioned2023-09-21T06:52:27Z-
dc.date.available2023-09-21T06:52:27Z-
dc.date.issued2023-05-26-
dc.identifier.citationScience Advances, 2023, v. 9, n. 21-
dc.identifier.issn2375-2548-
dc.identifier.urihttp://hdl.handle.net/10722/331063-
dc.description.abstract<p>Photosynthesis and evapotranspiration in Amazonian forests are major contributors to the global carbon and water cycles. However, their diurnal patterns and responses to atmospheric warming and drying at regional scale remain unclear, hindering the understanding of global carbon and water cycles. Here, we used proxies of photosynthesis and evapotranspiration from the International Space Station to reveal a strong depression of dry season afternoon photosynthesis (by 6.7 ± 2.4%) and evapotranspiration (by 6.1 ± 3.1%). Photosynthesis positively responds to vapor pressure deficit (VPD) in the morning, but negatively in the afternoon. Furthermore, we projected that the regionally depressed afternoon photosynthesis will be compensated by their increases in the morning in future dry seasons. These results shed new light on the complex interplay of climate with carbon and water fluxes in Amazonian forests and provide evidence on the emerging environmental constraints of primary productivity that may improve the robustness of future projections.<br></p>-
dc.languageeng-
dc.publisherAmerican Association for the Advancement of Science-
dc.relation.ispartofScience Advances-
dc.titleLarge diurnal compensatory effects mitigate the response of Amazonian forests to atmospheric warming and drying-
dc.typeArticle-
dc.identifier.doi10.1126/sciadv.abq4974-
dc.identifier.scopuseid_2-s2.0-85160376011-
dc.identifier.volume9-
dc.identifier.issue21-
dc.identifier.eissn2375-2548-
dc.identifier.isiWOS:001009728200018-
dc.identifier.issnl2375-2548-

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