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Forest cover is the amount of trees that covers a particular area of land. It may be measured as relative (in percent ) or absolute (in square kilometres / square miles ). Nearly a third of the world's land surface is covered with forest, with closed-canopy forest accounting for 4 - 5 billion hectares of land. [ 1 ]
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]
In 2010, the world had 3.92 billion hectares (ha) of tree cover, extending over 30% of its land area. [1] [need quotation to verify] In 2020, the world had a total forest area of 4.06 billion ha, which was 31 percent of the total land area.
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]
According to the Special Report on Global Warming of 1.5 °C of the Intergovernmental Panel on Climate Change, to avoid temperature rise by more than 1.5 degrees above pre-industrial levels, there will need to be an increase in global forest cover equal to the land area of Canada (10 million square kilometres (3.9 million square miles)) by 2050.
Forest cover is the total geographical area declared as forest by the government. As of 2021, the total forest cover in India is 80.9 million hectares, which is 21.71 per cent of the total geographical area. [2] There is a 1,540 sq.km increase in forest cover over 2019. Madhya Pradesh has the highest forest cover by area followed by Arunachal ...
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]
Historical woodland cover of England. The Domesday Book of 1086 indicated cover of 15%, "but significant loss of woodland started over four thousand years ago in prehistory". By the beginning of the 20th century this had dropped to 5%. The government believes 12% can be reached again by 2060. [15]