File:Drivers of water stress on the Amazon forest, their critical thresholds, safe boundaries and interactions.webp
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From the study "Critical transitions in the Amazon forest system"
Summary
[edit]DescriptionDrivers of water stress on the Amazon forest, their critical thresholds, safe boundaries and interactions.webp |
English: "a, Five critical drivers of water stress on Amazonian forests affect (directly or indirectly) the underlying tipping point of the system. For each driver, we indicate potential critical thresholds and safe boundaries that define a safe operating space for keeping the Amazon forest resilient11,12. We followed the precautionary principle and considered the most conservative thresholds within the ranges, when confidence was low. b, Conceptual model showing how the five drivers may interact (arrows indicate positive effects) and how these interactions may strengthen a positive feedback between water stress and forest loss. These emerging positive feedback loops could accelerate a systemic transition of the Amazon forest15. At global scales, driver 1 (global warming) intensifies with greenhouse gas emissions, including emissions from deforestation. At local scales, driver 5 (accumulated deforestation) intensifies with land use changes. Drivers 2 to 4 (regional rainfall conditions) intensify in response to drivers 1 and 5. The intensification of these drivers may cause widespread tree mortality for instance because of extreme droughts and fires76. Water stress affects vegetation resilience globally79,104, but other stressors, such as heat stress34,36, may also have a role. In the coming decades, these five drivers could change at different rates, with some approaching a critical threshold faster than others. Therefore, monitoring them separately can provide vital information to guide mitigation and adaptation strategies."
This study has been featured in 2024 in science. |
Date | |
Source | https://www.nature.com/articles/s41586-023-06970-0 |
Author | Authors of the study: Bernardo M. Flores, Encarni Montoya, Boris Sakschewski, Nathália Nascimento, Arie Staal, Richard A. Betts, Carolina Levis, David M. Lapola, Adriane Esquível-Muelbert, Catarina Jakovac, Carlos A. Nobre, Rafael S. Oliveira, Laura S. Borma, Da Nian, Niklas Boers, Susanna B. Hecht, Hans ter Steege, Julia Arieira, Isabella L. Lucas, Erika Berenguer, José A. Marengo, Luciana V. Gatti, Caio R. C. Mattos & Marina Hirota |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:00, 1 June 2024 | ![]() | 1,409 × 538 (57 KB) | Prototyperspective (talk | contribs) | Uploaded a work by Authors of the study: Bernardo M. Flores, Encarni Montoya, Boris Sakschewski, Nathália Nascimento, Arie Staal, Richard A. Betts, Carolina Levis, David M. Lapola, Adriane Esquível-Muelbert, Catarina Jakovac, Carlos A. Nobre, Rafael S. Oliveira, Laura S. Borma, Da Nian, Niklas Boers, Susanna B. Hecht, Hans ter Steege, Julia Arieira, Isabella L. Lucas, Erika Berenguer, José A. Marengo, Luciana V. Gatti, Caio R. C. Mattos & Marina Hirota from https://www.nature.com/articles/s41... |
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