Tropical tree growth driven by dry-season climate variability

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Zuidema, Pieter A.
Babst, Flurin
Groenendijk, Peter
Trouet, Valerie
Abiyu Abrham
Acuña-Soto, Rodolfo
Adenesky-Filho, Eduardo
Alfaro-Sánchez, Raquel
Vieira Aragão, José Roberto
Assis-Pereira, Gabriel
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Springer Nature
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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.
We acknowledge financial support to the co-authors Peru ‘s CONCYTEC and World Bank (043-2019-FONDECYT-BM-INC.INV.) to J.G.I, among others.
Palabras clave
Woody biomass, Variations in tropical temperature