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New research reveals significant differences between Amazon countries in the rate of reforestation and deforestation

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Massive reforestation in the Amazon is an important “nature-based solution” to climate change and is the main focus of the United Nations Climate Change COP26 Conference hosted by the United Kingdom in November.


forest recovery, New process forest Growing on previously deforested and abandoned land can rapidly capture large amounts of greenhouse gas CO2 From the atmosphere.

It’s the key to global success Climate change Policy as a way to reduce greenhouse gas concentrations in the atmosphere and achieve “net zero” emissions.

However, a new study by an international team of researchers from the United Kingdom and Brazil reveals areas with the highest potential for large-scale reforestation, the most extensive areas. deforestation-Currently, the recovery level is the lowest.

These highly deforested Amazon landscapes show no signs of recovery 20 years after deforestation.

Research published in Environmental research letter, Less than 10% Carbon emissions The deforestation of the Amazon was offset by the growth of new forests.

Even among the nine Amazon countries, there are significant differences in this carbon offset.Brazil, which contains more than half of the Amazon forest, is responsible for deforestation and most of its associated CO2 Emissions. Only one of the states (Para) is experiencing more deforestation than the other eight Amazon countries combined.

However, Brazil is also lagging behind in deforestation, with only 25% of previously deforested land occupied by new forests and only 9% of deforested CO.2 Emissions are offset.

Ecuador, on the other hand, is at the forefront of recovering almost 60% of its deforested land.In Guyana, where the forests to be restored are old and have regained more CO2, Almost a quarter of deforestation emissions have been offset.

Dr. Charlotte Smith, a scholar at Lancaster University and the lead author of the study, said: “The study in Amazon focuses on Brazil, which makes up the majority of the forest, but there are eight other Amazon countries. Understand how. Reforestation Different countries help us understand which countries’ policies help maintain carbon sinks in forests and which countries do not. “

She added: “Data from satellites are important for monitoring deforestation in areas as large as the Amazon, monitoring the success of countries in achieving internationally agreed goals for reducing greenhouse gas emissions. This new study is the first comparison of forest loss. High-resolution satellite images were used to map deforestation, restoration, and carbon storage from 1986 to 2017. “

John Healy, a professor of forestry science at Bangor University and co-author of the study, commented: Restoration in highly deforested areas, (2) protecting new forests without penalizing small landowners who rely on land cleared for cultivation, (3) further deforestation Prevent “

He emphasized that: “To ensure that Amazon achieves its potential to mitigate climate change, it is imperative that all of these challenges be addressed successfully.”

Researchers enable better targeting of interventions to protect and restore the remaining Amazon forests as more accurate data on the amount of forest loss and restoration are available, from national to rural scale. I predict that it will be.


Despite high expectations, the carbon absorbed by Amazon’s reforestation is dwarfed by deforestation emissions.


For more information:
Charlotte C. Smith et al, Loss of primary forests and restoration of secondary forests throughout the Amazon nations. Environmental research letter (2021). DOI: 10.1088 / 1748-9326 / ac1701

Provided by
Bangor University

Quote: In a new study, reforestation and deforestation (August 4, 2021) obtained on August 4, 2021 from https: //phys.org/news/2021-08-exposes-big-differences- Significant differences between Amazon countries in speed have become apparent. amazonian-countries.html

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New research reveals significant differences between Amazon countries in the rate of reforestation and deforestation

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