Humans Have Been Burning the Amazon Rainforest for 10,000 Years
Fresh evidence has emerged that challenges the perception of the Amazon as an untouched wilderness prior to modern times. A study that has reconstructed 10,000 years of fire history using 1,361 radiocarbon dates obtained from both soil charcoal and archaeological finds from 303 sites shows that fire is predominantly a human-driven phenomenon in the Amazon. According to the authors of the study published in Frontiers of Biogeography, people did not merely inhabit the Amazon, but exerted their influence on the forest through their use of fire, equivalent to that of major climate changes that occurred during the ice ages.
A Forest That Never Knew Fire
In the earlier evolutionary history of these wet forests fire occurrence was extremely rare. Evidence from glacial periods at places such as Hill of Six Lakes in Brazil, and Serra Sul dos Carajás revealed little to no charcoal deposition before humans arrived. In the Andean region, for example, the core obtained from Campo Libre shows no fire for about 30,000 years before the arrival of humans roughly around the last 4,500 years.
The scientists have termed the arrival of human beings as the species that brought fire to a “naïve land.” Because the plants of the Amazon have never developed resistance against fire, regular fires set by man changed a stable ecosystem in the region which had existed since the late Pleistocene.
www.Ancient-Origins.net – Reconstructing the story of humanity’s past
Source: https://www.ancient-origins.net/news-archaeology-history/amazon-rainforest-fires-00103140
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