Science & Technology

Significant differences in the rate of reforestation and deforestation between Amazon countries

The Amazon region, which has undergone the largest logging and has the highest potential for large-scale reforestation, currently has the lowest levels of recovery.

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.

Reforestation, the process by which new forests grow on previously deforested and abandoned land, can quickly capture large amounts of greenhouse gas CO.­2 From the atmosphere.

This is the key to successful global climate change policies 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 found that areas with the highest potential for large-scale reforestation, the areas with the largest deforestation, currently have the highest levels of recovery. It turns out to be low.

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

Research published in Environmental research letterShows that less than 10% of Amazon’s deforestation carbon emissions have been offset by new forest growth.

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.

Charlotte Smith, a PhD researcher at Lancaster University and lead author of the study, said: But there are eight other Amazon countries. Understanding how forest restoration varies from country to country is to understand which countries’ policies help maintain forest carbon sinks and which countries do not. Useful. “

She added: “Data from satellites are important for monitoring deforestation over areas as large as Amazonia, 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 and restoration across countries across the Amazon. Deforestation, from 1986 to 2017, using high-resolution satellite images. Mapped recovery, carbon storage. “

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.

See also: Loss of primary forests and restoration of secondary forests throughout the Amazon countries, Charlotte C. Smith, John Healey, Erika Berenguer, Paul J. Young, Ben Taylor, Fernando Elias, Fernando Espírito-Santo, Jos Barlow, 2021 July 22, Environmental research letter..
DOI: 10.1088 / 1748-9326 / ac1701

The authors of the papers are Charlotte Smith (Lancaster University, UK), John Healey (Banger University, UK), Erika Berenguer (Oxford University, UK), Paul Young (Lancaster University, UK), Ben Taylor (Lancaster University, UK), This is Fernando. Elias (Embrapa Amazonia Oriental, Brazil), Fernando Delbon Espirito Santo (University of Leicester, UK), Jos Barlow (Lancaster University, UK).

Charlotte’s work is a component of the Envision Doctoral Training Partnership of the Natural Environment Research Council between Lancaster University, Bangor University, the University of Nottingham and three other UK research institutes.

Significant differences in the rate of reforestation and deforestation between Amazon countries Significant differences in the rate of reforestation and deforestation between Amazon countries

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