Tropical tree growth driven by dry-season climate variability

Pieter A. Zuidema, Flurin Babst, Peter Groenendijk, Valerie Trouet, Abrham Abiyu, Rodolfo Acuña-Soto, Eduardo Adenesky-Filho, Raquel Alfaro-Sánchez, José Roberto Vieira Aragão, Gabriel Assis-Pereira, Xue Bai, Ana Carolina Barbosa, Giovanna Battipaglia, Hans Beeckman, Paulo Cesar Botosso, Tim Bradley, Achim Bräuning, Roel Brienen, Brendan M. Buckley, J. Julio CamareroAna Carvalho, Gregório Ceccantini, Librado R. Centeno-Erguera, Julián Cerano-Paredes, Álvaro Agustín Chávez-Durán, Bruno Barçante Ladvocat Cintra, Malcolm K. Cleaveland, Camille Couralet, Rosanne D’Arrigo, Jorge Ignacio del Valle, Oliver Dünisch, Brian J. Enquist, Karin Esemann-Quadros, Zewdu Eshetu, Ze Xin Fan, M. Eugenia Ferrero, Esther Fichtler, Claudia Fontana, Kainana S. Francisco, Aster Gebrekirstos, Emanuel Gloor, Daniela Granato-Souza, Kristof Haneca, Grant Logan Harley, Ingo Heinrich, Gerd Helle, Janet G. Inga, Mahmuda Islam, Yu mei Jiang, Mark Kaib, Zakia Hassan Khamisi, Marcin Koprowski, Bart Kruijt, Eva Layme, Rik Leemans, A. Joshua Leffler, Claudio Sergio Lisi, Neil J. Loader, Giuliano Maselli Locosselli, Lidio Lopez, María I. López-Hernández, José Luís Penetra Cerveira Lousada, Hooz A. Mendivelso, Mulugeta Mokria, Valdinez Ribeiro Montóia, Eddy Moors, Cristina Nabais, Justine Ngoma, Francisco de Carvalho Nogueira Júnior, Juliano Morales Oliveira, Gabriela Morais Olmedo, Mariana Alves Pagotto, Shankar Panthi, Gonzalo Pérez-De-Lis, Darwin Pucha-Cofrep, Nathsuda Pumijumnong, Mizanur Rahman, Jorge Andres Ramirez, Edilson Jimmy Requena-Rojas, Adauto de Souza Ribeiro, Iain Robertson, Fidel Alejandro Roig, Ernesto Alonso Rubio-Camacho, Ute Sass-Klaassen, Jochen Schöngart, Paul R. Sheppard, Franziska Slotta, James H. Speer, Matthew D. Therrell, Benjamin Toirambe, Mario Tomazello-Filho, Max C.A. Torbenson, Ramzi Touchan, Alejandro Venegas-González, Ricardo Villalba, Jose Villanueva-Diaz, Royd Vinya, Mart Vlam, Tommy Wils, Zhe Kun Zhou

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Interannual variability in the global land carbon sink is strongly related to variations in tropical temperature and rainfall. This association suggests an important role for moisture-driven fluctuations in tropical vegetation productivity, but empirical evidence to quantify the responsible ecological processes is missing. Such evidence can be obtained from tree-ring data that quantify variability in a major vegetation productivity component: woody biomass growth. Here we compile a pantropical tree-ring network to show that annual woody biomass growth increases primarily with dry-season precipitation and decreases with dry-season maximum temperature. The strength of these dry-season climate responses varies among sites, as reflected in four robust and distinct climate response groups of tropical tree growth derived from clustering. Using cluster and regression analyses, we find that dry-season climate responses are amplified in regions that are drier, hotter and more climatically variable. These amplification patterns suggest that projected global warming will probably aggravate drought-induced declines in annual tropical vegetation productivity. Our study reveals a previously underappreciated role of dry-season climate variability in driving the dynamics of tropical vegetation productivity and consequently in influencing the land carbon sink.

Original languageEnglish (US)
Pages (from-to)269-276
Number of pages8
JournalNature Geoscience
Volume15
Issue number4
DOIs
StatePublished - Apr 2022

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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