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Forest cover in the Eastern United States reached its lowest point in roughly 1872 with about 48 percent compared to the amount of forest cover in 1620. The majority of deforestation took place prior to 1910 with the Forest Service reporting the minimum forestation as 721,000,000 acres (2,920,000 km 2) around 1920. [2]
In the United States, the forest cover by state and territory is estimated from tree-attributes using the basic statistics reported by the Forest Inventory and Analysis (FIA) program of the Forest Service. [2] Tree volumes and weights are not directly measured in the field, but computed from other variables that can be measured. [3] [4]
Forest cover in the Eastern United States reached its lowest point in roughly 1872 with about 48 percent compared to the amount of forest cover in 1620. The majority of deforestation took place prior to 1910 with the Forest Service reporting the minimum forestation as 721,000,000 acres (2,920,000 km 2) around 1920. [8]
In 2008, Brazil's government announced a record rate of deforestation in the Amazon. [138] [139] Deforestation jumped by 69% in 2008 compared to 2007's twelve months, according to official government data. [140] Deforestation could wipe out or severely damage nearly 60% of the Amazon rainforest by 2030, according to a 2007 report from WWF. [141]
The regions with the highest tropical deforestation rate between 2000 and 2005 were Central America—which lost 1.3% of its forests each year—and tropical Asia. [49] In Central America , two-thirds of lowland tropical forests have been turned into pasture since 1950 and 40% of all the rainforests have been lost in the last 40 years. [ 66 ]
Deforestation in Brazil — which threatens the Amazon Rainforest, pictured above, — could hit an all-time low in the next 1-2 years, one government official said this week.
The yearly precipitation rate is between 20 and 60 inches in the form of rain or snow. Temperatures in temperate forests range from -22 degrees Fahrenheit to 86 degrees Fahrenheit. Temperate Forests within the United States are found in the Eastern region. Temperate forests can support a variety of species due to the large amount of rainfall.
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