The Southeastern Amazon as a Carbon Source

Assembled from 35 blocks · 1 evidence · 35 related

1. Story
2. The finding that part of the Amazon has stopped being a net absorber of carbon dioxide and become a net emitter, independent of any single drought year. Gatti and colleagues reported in 2021 on a programme of repeated vertical aircraft profiles flown over four sites across the basin through the 2010s - a method that samples the whole column of air over a large footprint rather than a plot or a tower, and therefore measures a region rather than a stand. The eastern basin, and the southeast in particular, emitted more carbon than it absorbed. The mechanism they describe is cumulative rather than sudden: that part of the basin has seen the largest clearance, the strongest dry-season warming and a lengthening dry season, and fire converts the loss into emissions directly. The northwest, wetter and largely intact, still absorbed. The importance of the result is that it separates two things usually run together - a drought year in which the forest temporarily releases carbon, and a region that has changed state.
3. Knowledge
4. Amazon Deforestation
5. Forest Degradation
6. The Southeastern Amazon as a Carbon Source
7. Connections
8. Amazon Deforestation
9. Forest Degradation
10. Drought sensitivity of the Amazon is published
11. Aircraft profiles show the eastern Amazon emitting more carbon than it absorbs
12. Jaguar (Panthera onca)
13. Indigenous Peoples and Demarcated Territories of the Amazon
14. BR-163 (Cuiaba-Santarem Highway)
15. Moisture Recycling
16. The Amazon Dieback Threshold
17. Forest Degradation
18. The Southeastern Amazon as a Carbon Source
19. Satellite Deforestation Monitoring
20. PPCDAm (Action Plan for the Prevention and Control of Deforestation in the Legal Amazon)
21. Amazon Soy Moratorium
22. Construction of the Trans-Amazonian Highway begins
23. BR-163 opens between Cuiaba and Santarem
24. INPE begins the annual PRODES deforestation series
25. Clearance reaches the highest annual figure in the record
26. The Amazon Soy Moratorium is signed
27. Annual clearance reaches its lowest recorded level
28. Clearance reaches its highest level since the mid-2000s
29. Clearance falls to its lowest level in roughly a decade
30. The UN climate conference convenes at the mouth of the Amazon
31. Amazon Deforestation
32. Amazon Basin
33. The Southeastern Amazon as a Carbon Source
34. Evidence
35. Supports the finding, from repeated vertical aircraft profiles over four Amazonian sites during the 2010s, that the eastern and especially southeastern basin is a net carbon source while the northwest remains a sink. V55 verification basis: not retrieved in this session; flux magnitudes are deliberately not quoted.