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Deforestation and forest area net change are not the same: the latter is the sum of all forest losses (deforestation) and all forest gains (forest expansion) in a given period. Net change, therefore, can be positive or negative, depending on whether gains exceed losses, or vice versa.
Other forest ecosystems have suffered as much or more destruction as tropical rainforests. Deforestation for farming and logging have severely disturbed at least 94% of temperate broadleaf forests; many old growth forest stands have lost more than 98% of their previous area because of human activities. [7]
Deforestation in the Maranhão state, Brazil, in July 2016. The Amazon rainforest, spanning an area of 3,000,000 km 2 (1,200,000 sq mi), is the world's largest rainforest.It encompasses the largest and most biodiverse tropical rainforest on the planet, representing over half of all rainforests.
The forest resources of the United States remained relatively constant through the 20th century. [3] The Forest Service reported total forestation as 766,000,000 acres (3,100,000 km 2) in 2012. [4] [5] [3] A 2017 study estimated 3 percent loss of forest between 1992 and 2001. [6]
The area destroyed in the first half of 2022 is 80% larger than the same period in 2018, the year before Bolsonaro took office, according to an analysis from the Amazon Environmental Research ...
Bolivia also has the seventh largest amount of tropical rainforest. Overall, forests made up 51.4 million hectares or 46.8% of the country's total area as of 2013. [143] Both primary forest and overall forest cover have been declining in recent decades. [143]
Biophysical mechanisms by which forests influence climate. Irreversible deforestation would result in a permanent rise in the global surface temperature. [23] Moreover, it suggests that standing tropical forests help cool the average global temperature by more than 1 °C or 1.8 °F.
The secondary forests are somewhat degraded, but some lemur species are just as abundant in these areas. [29] Mosaic forests are fragmented and are heavily affected by deforestation. Some species of lemurs cannot survive in these forests, [28] while others can. [30] Survival in these mosaic forests depends on a variety of factors, such as diet ...