Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect

Schöngart, Jochen; Junk, Wolfgang Johannes; Piedade, Maria Teresa Fernandez; Ayres, José Marcio; Hüttermann, Alloys; Worbes, Martin

Artigo

Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect

There is a limited knowledge about the El Niño-Southern Oscillation (ENSO) effects on the Amazon basin, the world's largest tropical rain forest and a major factor in the global carbon cycle. Seasonal precipitation in the Andean watershed annually causes a several month-long inundation of the floodp...

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Autor principal:	Schöngart, Jochen
Outros Autores:	Junk, Wolfgang Johannes, Piedade, Maria Teresa Fernandez, Ayres, José Marcio, Hüttermann, Alloys, Worbes, Martin
Grau:	Artigo
Idioma:	English
Publicado em:	Global Change Biology 2020
Assuntos:	Carbon Cycle Dendrochronology El Nino-southern Oscillation Growth Response Paleoclimate Seasonal Variation Tropical Forest Amazonia South America Euphorbia Euphorbiaceae
Acesso em linha:	https://repositorio.inpa.gov.br/handle/1/18923

id	oai:repositorio:1-18923
recordtype	dspace
spelling	oai:repositorio:1-18923 Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect Schöngart, Jochen Junk, Wolfgang Johannes Piedade, Maria Teresa Fernandez Ayres, José Marcio Hüttermann, Alloys Worbes, Martin Carbon Cycle Dendrochronology El Nino-southern Oscillation Growth Response Paleoclimate Seasonal Variation Tropical Forest Amazonia South America Euphorbia Euphorbiaceae There is a limited knowledge about the El Niño-Southern Oscillation (ENSO) effects on the Amazon basin, the world's largest tropical rain forest and a major factor in the global carbon cycle. Seasonal precipitation in the Andean watershed annually causes a several month-long inundation of the floodplains along the Amazon River that induces the formation of annual rings in trees of the flooded forests. Radial growth of trees is mainly restricted to the nonflooded period and thus the ring width corresponds to its duration. This allows the construction of a tree-ring chronology of the long-living hardwood species Piranhea trifoliata Baill. (Euphorbiaceae). El Niño causes anomalously low precipitation in the catchment that results in a significantly lower water discharge of the Amazon River and consequently in an extension of the vegetation period. In those years tree rings are significantly wider. Thus the tree-ring record can be considered as a robust indicator reflecting the mean climate conditions of the whole Western Amazon basin. We present a more than 200-year long chronology, which is the first ENSO-sensitive dendroclimatic proxy of the Amazon basin and permits the dating of preinstrumental El Niño events. Time series analyses of our data indicate that during the last two centuries the severity of El Niño increased significantly. © 2004 Blackwell Publishing Ltd. 2020-06-15T22:03:57Z 2020-06-15T22:03:57Z 2004 Artigo https://repositorio.inpa.gov.br/handle/1/18923 10.1111/j.1529-8817.2003.00754.x en Volume 10, Número 5, Pags. 683-692 Restrito Global Change Biology
institution	Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection	INPA-RI
language	English
topic	Carbon Cycle Dendrochronology El Nino-southern Oscillation Growth Response Paleoclimate Seasonal Variation Tropical Forest Amazonia South America Euphorbia Euphorbiaceae
spellingShingle	Carbon Cycle Dendrochronology El Nino-southern Oscillation Growth Response Paleoclimate Seasonal Variation Tropical Forest Amazonia South America Euphorbia Euphorbiaceae Schöngart, Jochen Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect
topic_facet	Carbon Cycle Dendrochronology El Nino-southern Oscillation Growth Response Paleoclimate Seasonal Variation Tropical Forest Amazonia South America Euphorbia Euphorbiaceae
description	There is a limited knowledge about the El Niño-Southern Oscillation (ENSO) effects on the Amazon basin, the world's largest tropical rain forest and a major factor in the global carbon cycle. Seasonal precipitation in the Andean watershed annually causes a several month-long inundation of the floodplains along the Amazon River that induces the formation of annual rings in trees of the flooded forests. Radial growth of trees is mainly restricted to the nonflooded period and thus the ring width corresponds to its duration. This allows the construction of a tree-ring chronology of the long-living hardwood species Piranhea trifoliata Baill. (Euphorbiaceae). El Niño causes anomalously low precipitation in the catchment that results in a significantly lower water discharge of the Amazon River and consequently in an extension of the vegetation period. In those years tree rings are significantly wider. Thus the tree-ring record can be considered as a robust indicator reflecting the mean climate conditions of the whole Western Amazon basin. We present a more than 200-year long chronology, which is the first ENSO-sensitive dendroclimatic proxy of the Amazon basin and permits the dating of preinstrumental El Niño events. Time series analyses of our data indicate that during the last two centuries the severity of El Niño increased significantly. © 2004 Blackwell Publishing Ltd.
format	Artigo
author	Schöngart, Jochen
author2	Junk, Wolfgang Johannes Piedade, Maria Teresa Fernandez Ayres, José Marcio Hüttermann, Alloys Worbes, Martin
author2Str	Junk, Wolfgang Johannes Piedade, Maria Teresa Fernandez Ayres, José Marcio Hüttermann, Alloys Worbes, Martin
title	Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect
title_short	Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect
title_full	Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect
title_fullStr	Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect
title_full_unstemmed	Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect
title_sort	teleconnection between tree growth in the amazonian floodplains and the el niño-southern oscillation effect
publisher	Global Change Biology
publishDate	2020
url	https://repositorio.inpa.gov.br/handle/1/18923
_version_	1787144909151535104
score	11.674684

Teleconnection between tree growth in the Amazonian floodplains and the El Niño-Southern Oscillation effect

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