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Self-amplified Amazon forest loss due to vegetation-atmosphere feedbacks

Self-amplified Amazon forest loss due to vegetation-atmosphere feedbacks

Vicious cycle of destruction in the Amazon:

Here we show that the risk of self-amplified Amazon forest loss increases nonlinearly with dry-season intensification. […] Our results suggest that the risk of self-amplified forest loss is reduced with increasing heterogeneity in the response of forest patches to reduced rainfall. […] Although our findings do not indicate that the projected rainfall changes for the end of the twenty-first century will lead to complete Amazon dieback, they suggest that frequent extreme drought events have the potential to destabilize large parts of the Amazon forest.

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Land use and land cover changes and their impacts on surface-atmosphere interactions in Brazil: A systematic review

Land use and land cover changes and their impacts on surface-atmosphere interactions in Brazil: A systematic review

Major land use and land cover changes in Brazil and their impacts on precipitation and evapotranspiration:

For the Amazon biome, decreasing dry season P and in annual ET were reported. In the Cerrado biome, decreasing P in the wet and dry seasons and decreasing dry season ET were the most common result. For the Atlantic Forest biome, increasing annual P and increasing wet season ET, likely due to reforestation, were reported.

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Amazonia´s flying rivers – no forest, no water

Amazonia´s flying rivers – no forest, no water

Interesting and informative documentary: The Amazon rainforest is not only the earth’s green lung (absorbing and storing carbon dioxide from the air and converting it to oxygen) it is also its air conditioner: intact forests suck in rain clouds from the Atlantic and evaporate water. In this way they cool the earth. Without forest, no water: if more and more forest disappears, this phenomenon of ‘flying rivers’ acting like a gigantic water pump can no longer exist. Scientists, politicians and environmental activists explain the fragile balance.

Posted by Stefan in Allgemein, 0 comments