Airborne observations reveal elevational gradient in tropical forest isoprene emissions
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Isoprene dominates global non-methane volatile organic compound emissions, and impacts
tropospheric chemistry by influencing oxidants and aerosols. Isoprene emission rates vary
over several orders of magnitude for different plants, and characterizing this immense biological
chemodiversity is a challenge for estimating isoprene emission from tropical forests.
Here we present the isoprene emission estimates from aircraft eddy covariance measurements
over the Amazonian forest. We report isoprene emission rates that are three times
higher than satellite top-down estimates and 35% higher than model predictions. The results
reveal strong correlations between observed isoprene emission rates and terrain elevations,
which are confirmed by similar correlations between satellite-derived isoprene emissions and
terrain elevations. We propose that the elevational gradient in the Amazonian forest isoprene
emission capacity is determined by plant species distributions and can substantially explain
isoprene emission variability in tropical forests, and use a model to demonstrate the resulting
impacts on regional air quality.
Como referenciar
GU, DASA; GUENTHER, ALEX B.; SHILLING, JOHN E.; YU, HAOFEI; HUANG, MAOYI; ZHAO, CHUN; YANG, QING; MARTIN, SCOT T.; ARTAXO, PAULO; KIM, SAEWUNG; SECO, ROGER; STAVRAKOU, TRISSEVGENI; LONGO, KARLA M.; TOTA, JULIO; SOUZA, RODRIGO A.F. de; VEGA, OSCAR; LIU, YING; SHRIVASTAVA, MANISH; ALVES, ELIANE G.; SANTOS, FERNANDO C.; LENG, GUOYONG; HU, ZHIYUAN. Airborne observations reveal elevational gradient in tropical forest isoprene emissions. Nature Communications, v. 8, n. 15541, p. 1-7, 2017. DOI: 10.1038/ncomms15541. Disponível em: http://repositorio.ipen.br/handle/123456789/27584. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.