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

Research output: Contribution to journalArticlepeer-review

85 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 languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalGeophysical Research Letters
Volume32
Issue number24
DOIs
StatePublished - Dec 28 2005

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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