Climatic variability and vegetation vulnerability in Amazǒnia

L. R. Hutyra; J. W. Munger; C. A. Nobre; S. R. Saleska; S. A. Vieira; S. C. Wofsy

doi:10.1029/2005GL024981

Climatic variability and vegetation vulnerability in Amazǒnia

L. R. Hutyra, J. W. Munger, C. A. Nobre, S. R. Saleska, S. A. Vieira, S. C. Wofsy

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103 Scopus citations

Abstract

Models of climate change predict close coupling between increases in aridity and conversion of Amazonian forests to savanna. Here we assess the vulnerability and resilience of Amazonian vegetation to climate change by analyzing observed climate-vegetation relationships using climate data, observed vegetation distributions, and evapotranspiration rates inferred from eddy flux data. We found that drought frequency is an excellent predictor of the forest-savanna boundary, indicating the key role of extreme climatic events for inducing vegetation change, and highlighting particularly vulnerable regions of Amazônia.

Original language	English (US)
Pages (from-to)	1-4
Number of pages	4
Journal	Geophysical Research Letters
Volume	32
Issue number	24
DOIs	https://doi.org/10.1029/2005GL024981
State	Published - Dec 28 2005

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1029/2005GL024981

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AU - Vieira, S. A.

AU - Wofsy, S. C.

PY - 2005/12/28

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AB - Models of climate change predict close coupling between increases in aridity and conversion of Amazonian forests to savanna. Here we assess the vulnerability and resilience of Amazonian vegetation to climate change by analyzing observed climate-vegetation relationships using climate data, observed vegetation distributions, and evapotranspiration rates inferred from eddy flux data. We found that drought frequency is an excellent predictor of the forest-savanna boundary, indicating the key role of extreme climatic events for inducing vegetation change, and highlighting particularly vulnerable regions of Amazônia.

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Climatic variability and vegetation vulnerability in Amazǒnia

Abstract

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