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The impact of Amazonian deforestation on Amazon basin rainfall [Geophysical Research Letter]

Keywords : deforestation, rainfall, climate model

par Frédéric Magné - publié le

We completed a meta-analysis of regional and global climate model simulations (n = 96) of the impact of Amazonian deforestation on Amazon basin rainfall. Across all simulations, mean (±1σ) change in annual mean Amazon basin rainfall was −12 ± 11%. Variability in simulated rainfall was not explained by differences in model resolution or surface parameters. Across all simulations we find a negative linear relationship between rainfall and deforestation extent, although individual studies often simulate a nonlinear response. (...)

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