학술논문

Sensitivity of South American tropical forests to an extreme climate anomaly
Document Type
Article
Author
Bennett, Amy C.Rodrigues de Sousa, ThaianeMonteagudo-Mendoza, AbelEsquivel-Muelbert, AdrianeMorandi, Paulo S.Coelho de Souza, FernandaCastro, WendesonDuque, Luisa FernandaFlores Llampazo, GerardoManoel dos Santos, RubensRamos, ElianaVilanova Torre, EmilioAlvarez-Davila, EstebanBaker, Timothy R.Costa, Flávia R. C.Lewis, Simon L.Marimon, Beatriz S.Schietti, JulianaBurban, BenoîtBerenguer, ErikaAraujo-Murakami, AlejandroRestrepo Correa, ZoraydaLopez, WilmarDelgado Santana, FláviaViscarra, Laura JessicaElias, FernandoVasquez Martinez, RodolfoMarimon-Junior, Ben HurGalbraith, DavidSullivan, Martin J. P.Emilio, ThaisePrestes, Nayane C. C. S.Barlow, JosAlencar Fagundes, Nathalle CristineAlmeida de Oliveira, EdmarAlvarez Loayza, PatriciaAlves, Luciana F.Aparecida Vieira, SimoneAndrade Maia, ViníciusAragão, Luiz E. O. C.Arets, Eric J. M. M.Arroyo, LuzmilaBánki, OlafBaraloto, ChristopherBarbosa Camargo, PlínioBarroso, JorcelyBento da Silva, WilderBonal, DamienBorges Miranda Santos, AlissonBrienen, Roel J. W.Brown, FosterCastilho, Carolina V.Cerruto Ribeiro, SabinaChama Moscoso, VictorChavez, EzequielComiskey, James A.Cornejo Valverde, FernandoDávila Cardozo, Nállarettde Aguiar-Campos, Natáliade Oliveira Melo, Liadel Aguila Pasquel, JhonDerroire, GéraldineDisney, Mathiasdo Socorro, MariaDourdain, AurélieFeldpausch, Ted R.Ferreira, JoiceForni Martins, ValeriaGardner, TobyGloor, EmanuelGutierrez Sibauty, GloriaGuillen, RenéHase, EduardoHérault, BrunoHonorio Coronado, Eurídice N.Huaraca Huasco, WalterJanovec, John P.Jimenez-Rojas, ElianaJoly, CarlosKalamandeen, MichelleKilleen, Timothy J.Lais Farrapo, CamilaLevesley, AuroraLizon Romano, LeonLopez Gonzalez, GabrielaMaës dos Santos, Flavio AntonioMagnusson, William E.Malhi, YadvinderMatias de Almeida Reis, SimoneMelgaço, KarinaMelo Cruz, Omar A.Mendoza Polo, IrinaMontañez, TatianaMorel, Jean DanielNúñez Vargas, M PercyOliveira de Araújo, RaimundaPallqui Camacho, Nadir C.Parada Gutierrez, AlexanderPennington, TobyPickavance, Georgia C.Pipoly, JohnPitman, Nigel C. A.Quesada, CarlosRamirez Arevalo, FreddyRamírez‐Angulo, HirmaFlora Ramos, RafaelRichardson, James E.Rodrigo de Souza, CléberRoopsind, AnandSchwartz, GustavoSilva, Richarlly C.Silva Espejo, JavierSilveira, MarcosSingh, JamesSoto Shareva, YhanSteininger, MarcStropp, JulianaTalbot, Joeyter Steege, HansTerborgh, JohnThomas, RaquelValenzuela Gamarra, Luisvan der Heijden, Geertjevan der Hout, PeterZagt, RoderickPhillips, Oliver L.
Source
Nature Climate Change; September 2023, Vol. 13 Issue: 9 p967-974, 8p
Subject
Language
ISSN
1758678X; 17586798
Abstract
The tropical forest carbon sink is known to be drought sensitive, but it is unclear which forests are the most vulnerable to extreme events. Forests with hotter and drier baseline conditions may be protected by prior adaptation, or more vulnerable because they operate closer to physiological limits. Here we report that forests in drier South American climates experienced the greatest impacts of the 2015–2016 El Niño, indicating greater vulnerability to extreme temperatures and drought. The long-term, ground-measured tree-by-tree responses of 123 forest plots across tropical South America show that the biomass carbon sink ceased during the event with carbon balance becoming indistinguishable from zero (−0.02 ± 0.37 Mg C ha−1per year). However, intact tropical South American forests overall were no more sensitive to the extreme 2015–2016 El Niño than to previous less intense events, remaining a key defence against climate change as long as they are protected.