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. 2025 Jul 31;389(6759):532-538.
doi: 10.1126/science.adq6607. Epub 2025 Jul 31.

Pantropical tree rings show small effects of drought on stem growth

Pieter A Zuidema  1 Peter Groenendijk  2 Mizanur Rahman  3 Valerie Trouet  4   5 Abrham Abiyu  6 Rodolfo Acuña-Soto  7   8 Eduardo Adenesky-Filho  9 Raquel Alfaro-Sánchez  10   11 Claudio Roberto Anholetto Jr  12 José Roberto Vieira Aragão  2   13 Gabriel Assis-Pereira  14   15 Claudia C Astudillo-Sánchez  16 Ana Carolina Barbosa  17 Giovanna Battipaglia  18 Hans Beeckman  19 Paulo Cesar Botosso  20 Nils Bourland  19 Achim Bräuning  21 Roel Brienen  22 Matthew Brookhouse  23 Supaporn Buajan  24 Brendan M Buckley  25 J Julio Camarero  26 Artemio Carrillo-Parra  27 Gregório Ceccantini  28 Librado R Centeno-Erguera  29 Julián Cerano-Paredes  29 Rosalinda Cervantes-Martínez  30 Wirong Chanthorn  31 Ya-Jun Chen  32 Bruno Barçante Ladvocat Cintra  33   34 Eladio Heriberto Cornejo-Oviedo  30 Otoniel Cortés-Cortés  30 Clayane Matos Costa  35 Camille Couralet  19 Doris Bianca Crispín-De-La-Cruz  2   36 Rosanne D'arrigo  25 Diego A David  37 Maaike De Ridder  19 Jorge Ignacio Del Valle  37 Mário Dobner Jr  38 Jean-Louis Doucet  39 Oliver Dünisch  40 Brian J Enquist  41   42 Karin Esemann-Quadros  43   44 Gerardo Esquivel-Arriaga  29 Ze-Xin Fan  32 Adeline Fayolle  45   46 Tatiele Anete Bergamo Fenilli  9 M Eugenia Ferrero  36   47 Esther Fichtler  48 Patrick M Finnegan  49 Claudia Fontana  14 Kainana S Francisco  50 Pei-Li Fu  32 Franklin Galvão  51 Aster Gebrekirstos  52 Jorge A Giraldo  53 Emanuel Gloor  22 Milena Godoy-Veiga  28 Daniela Granato-Souza  54 Anthony Guerra  55 Kristof Haneca  56 Grant Logan Harley  57 Ingo Heinrich  58   59 Gerhard Helle  60 Bruna Hornink  2   14 Wannes Hubau  61 Janet G Inga  36 Mahmuda Islam  3   62 Yu-Mei Jiang  63 Mark Kaib  64 Zakia Hassan Khamisi  4 Marcin Koprowski  65   66 Eva Layme  67   68 A Joshua Leffler  69 Gauthier Ligot  39 Claudio Sergio Lisi  35 Neil J Loader  70 Francisco De Almeida Lobo  71 Giuliano Maselli Locosselli  28   72 Tomaz Longhi-Santos  73 Lidio Lopez  47 María I López-Hernández  30 José Luís Penetra Cerveira Lousada  74 Rubén D Manzanedo  75   76 Amanda K Marcon  51 Justin T Maxwell  77 Omar N Mendoza-Villa  78 Ítallo Romany Nunes Menezes  35   79 Mulugeta Mokria  21   52 Valdinez Ribeiro Montóia  80 Eddy Moors  81   82 Miyer Moreno  83 Miguel Angel Muñiz-Castro  84 Cristina Nabais  85 Anuttara Nathalang  86 Justine Ngoma  87 Francisco De Carvalho Nogueira Jr  88 Juliano Morales Oliveira  89   90 Gabriela Morais Olmedo  91 Daigard Ricardo Ortega-Rodriguez  14 Carmen Eugenia Rodríguez Ortíz  92 Mariana Alves Pagotto  35 Shankar Panthi  32 Kathelyn Paredes-Villanueva  93   94 Gonzalo Pérez-de-Lis  95 Laura Patricia Ponce Calderón  96 Leif Armando Portal-Cahuana  14   97 Darwin Alexander Pucha-Cofrep  98 Nathsuda Pumijumnong  24 Paulo Quadri  99 Jorge Andrés Ramírez  100 Edilson Jimmy Requena-Rojas  36 Judith Reyes-Flores  30 Adauto de Souza Ribeiro  35 Iain Robertson  70 Fidel Alejandro Roig  47   101 José Guilherme Roquette  102 Ernesto Alonso Rubio-Camacho  103 Raúl Sánchez-Salguero  104 Ute Sass-Klaassen  1   105 Jochen Schöngart  106 Marcelo Callegari Scipioni  38 Paul R Sheppard  4 Lucas C R Silva  107 Franziska Slotta  108 Leroy Soria-Díaz  109 Luciana K V S Sousa  110 James H Speer  111 Matthew D Therrell  112 Ginette Ticse-Otarola  36   113 Mario Tomazello-Filho  14 Max C A Torbenson  114 Pantana Tor-Ngern  115   116 Ramzi Touchan  4 Jan Van den Bulcke  61 Lorenzo Vázquez-Selem  117 Adín H Velázquez-Pérez  118 Alejandro Venegas-González  119 Ricardo Villalba  47 Jose Villanueva-Diaz  29 Mart Vlam  105 George Vourlitis  120 Christian Wehenkel  27 Tommy Wils  121   122 Erika S Zavaleta  123 Eshetu Asfaw Zewdu  124 Yong-Jiang Zhang  125 Zhe-Kun Zhou  32 Flurin Babst  4   126
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Free article

Pantropical tree rings show small effects of drought on stem growth

Pieter A Zuidema et al. Science. .
Free article

Abstract

Increasing drought pressure under anthropogenic climate change may jeopardize the potential of tropical forests to capture carbon in woody biomass and act as a long-term carbon dioxide sink. To evaluate this risk, we assessed drought impacts in 483 tree-ring chronologies from across the tropics and found an overall modest stem growth decline (2.5% with a 95% confidence interval of 2.2 to 2.7%) during the 10% driest years since 1930. Stem growth declines exceeded 10% in 25% of cases and were larger at hotter and drier sites and for gymnosperms compared with angiosperms. Growth declines generally did not outlast drought years and were partially mitigated by growth stimulation in wet years. Thus, pantropical forest carbon sequestration through stem growth has hitherto shown drought resilience that may, however, diminish under future climate change.

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