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It has been estimated that before European settlement, forests in the United States mainland covered nearly 1 billion acres (4,000,000 km 2). [1] Since the mid-1600s, about 300 million acres (1,200,000 km 2) of forest have been cleared, primarily for agriculture during the 19th century.
Map of national forests and national grasslands of the United States. The United States has 154 protected areas known as national forests, covering 188,336,179 acres (762,169 km 2; 294,275 sq mi). [1] National forests are managed by the U.S. Forest Service, an agency of the U.S. Department of Agriculture. [2]
The tropical domain has the largest proportion of the world's forests (45 percent), followed by the boreal, temperate and subtropical domains. More than half (54 percent) of the world's forests is in only five countries – the Russian Federation (20.1%), Brazil (12.2%), Canada (8.6%), the United States of America (7.6%) and China (5.4%). [2]
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.
Map of wood-filled areas in the United States, c. 2000 [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]
Today, responsible foresters lend a hand to create optimal conditions for the entire ecological system surrounding forests, helping nature to maintain its balance. For centuries, forests sustained ...
BILLINGS, Mont. (AP) — The Biden administration on Monday said the government will plant more than one billion trees across The post US to plant 1 billion trees as climate change kills forests ...
In 1600, prior to the arrival of European-Americans, roughly half of the land area of the present-day United States was forest – about 4,000,000 square kilometres (990,000,000 acres). For the next 300 years land was cleared, mostly for agriculture, at a rate that matched the rate of population growth.