China News Service, Beijing, July 15 (Reporter Sun Zifa) The latest climate science research paper published in the famous international academic journal "Nature" pointed out that deforestation and regional climate change may threaten the buffering potential of atmospheric carbon in the Amazon rainforest.
The study found that carbon emissions in some areas of the Amazon rainforest exceed carbon absorption. The results of this study help people further understand the interaction between climate change and human disturbance, and the long-term impact of this interaction on the carbon balance of the world's largest tropical rainforest.
The Amazon rain forest (or Amazon basin) is the largest tropical rain forest in the world, and it plays a key role in the accumulation and storage of carbon in the atmosphere.
Factors such as man-made deforestation and climate change are thought to cause a decline in carbon sink capacity and change the balance of local carbon-containing gases, and this balance is an indicator of the health of the ecosystem.
The corresponding author of the paper, Luciana Gatti of the Brazilian National Institute of Space Research and colleagues, compiled the results of aircraft observations of tropospheric carbon dioxide and carbon monoxide concentrations over the Amazon Basin in Brazil from 2010 to 2018. Lower level).
They analyzed the data of more than 600 cases of vertical distribution (approximately 4.5 kilometers from the surface to sea level) in 4 locations, and the results showed that the total carbon emissions in the eastern part of the Amazon basin were higher than that in the western part.
The author of the paper pointed out that, specifically, the southeastern part of the Amazon Basin was locked as a net carbon emission source, which was directly transformed from a carbon sink into a carbon source during the study period.
They believe that the dry season and increased deforestation put pressure on the local ecosystem, leading to an increase in fire accidents, which may be the reason for the increase in carbon emissions in the east.
"Nature" published a "News and Views" article at the same time, saying that the study reveals the link between deforestation and climate change in the Amazon Basin and shows that this interaction may have an impact on the carbon balance of the Amazon region and the vulnerability of its ecosystem. Long-term negative effects.
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