Climate change has been linked to a “significant” and “widespread” decline in the ability of many of the world’s forests to bounce back after events such as drought and logging
Climate change has been linked with a widespread decline in the ability of many of the world’s forests to bounce back after events such as drought and logging.
Forests around the world differ in their resilience to disturbances, but relatively little is known about how that resilience is changing over time.at the University of Florence, Italy, and his colleagues ran a machine learning algorithm on satellite data of global vegetation from 2000 to 2020 to calculate a metric of resilience. Resilience was defined by a forest’s ability to avoid shifting state, such as becoming savannah, and withstand perturbations, such as an influx of insect pests.
Forzieri says the difference appears to be down to climate change causing more extreme heat events and water shortages in the first three climatic regions. While some of those negative impacts are also felt in the boreal forests, they are outweighed by the fertilising effect of higher carbon dioxide levels there. Overall, the global picture is one of decreasing resilience, which the team says is a “worrying” trajectory.
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