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Nearly 4 billion hectares of forest cover the earth’s surface, roughly 30 percent of its total land area. We much thank the rainforest for things like rosewood, palm, brazil nuts, mahogany and Amazonian cedar. A forest is an area with a high density of trees. Extent of forest resources is the first of the thematic elements characterizing sustainable forest management. The Amazon rainforest is home to incredible biodiversity, including an estimated 10% of all life on earth. Comments . The study found that there are around 3.04 trillion trees on Earth, or around 422 for each person on the planet. The conversion of forests into cropland worldwide has triggered an atmospheric change to emissions of biogenic volatile organic compounds that -- while seldom considered in climate models -- … km) In his excellent Deforesting the earth: from prehistory to global crisis , Williams estimates that humans have cleared some 1.8 billion hectares over the past 5,000 years, or an average net loss of 360,000 hectares per year. Though extensive, the world’s forests have shrunk by some 40 percent since agriculture began 11,000 years ago. OVERVIEW. This boreal forest is one of the two largest terrestrial ecosystems on Earth, the other being the tundra - a vast treeless plain that lies north of the boreal forest and stretches to the Arctic Ocean. There are many definitions of a forest, based on the various criteria. Thank you for your continued support in making the world better place. A new interactive map produced by NASA and the National Oceanic and Atmospheric Administration (NOAA) shows all the world’s vegetation.The satellite images were compiled into a single high-resolution image showing how much greenery covers the Earth.. Forest area (% of land area) Agricultural land (% of land area) Agricultural land (sq. On paper these areas compensate for the primary forest that has been cut down; 100-hectare loss of primary forest is perfectly offset by a 100-hectare gain on a man-made plantation, for example. The northern forest circles the globe through Russia, Scandinavia, and North America, covering approximately 13.8 million km 2 (UNECE and FAO 2000). While forests cover nearly 30% of the Earth’s surface, they are home to 80% of the world’s terrestrial species of animals, plants and insects. Descriptions of Data Sets, Scope, and Methodologies U.S. Forest Service (USFS) Description of data: The Forest Inventory and Analysis (FIA) provides estimates of forest land by owner and status (reserved, unreserved, productive, unproductive, cover type, etc.) Share Share Tweet Email. Although 75% of the planet is a relatively unchanging ocean of blue, the remaining 25% of Earth’s surface is a dynamic green. It Amazon River into the Atlantic ocean and its basin spans roughly 2,300,00 square miles (that's around 6,000,000 square km). How much forest has been cut down in the history of civilizations? km) Rural land area where elevation is below 5 meters (% of total land area) Urban land area where elevation is below 5 meters (% of total land area) Land area (sq. Topics Environment World Wildlife Day Stand for Trees. The study points out that industrial timber plantations, mature oil palm estates and other specifically planted forests add to global tree cover. 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