Research suggests future changes, including a reduction in Earth’s ability to store carbon. Certain sections of the Amazonian lowland rainforests, which are vital for carbon dioxide absorption and mitigating the effects of climate change, might gradually transition into arid, grassy savannas, accor
, sheds light on the way alternating flooding during the wet period and droughts in the dry phase, termed ‘double-stress’, can limit forest establishment and favor short-lived grass“Because predictions of future climate indicate a drier climate for the tropics, knowing where and how today’s forests will become savannas will help us predict how the carbon cycle may change, exacerbating warming,” said Caio Mattos, a lead author who conducted the research as a doctoral student in the Department of...
This implies that, under a future climate that is projected to be drier, some of the permanently flooded lowland Amazon will start to “feel” a dry period, subjecting the forests to double-stress or savanna conditions in the heart of the Amazonia. A forest is defined as an area of land dominated by trees and characterized by its thick canopy. A savanna is a mixed woodland-grassland system with trees sufficiently spaced to allow sunlight to promote grass growth.
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