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Amazon River Basin (The southern Guianas, not marked on this map, are a part of the basin.) The mouth of the Amazon River. The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about 7,000,000 km 2 (2,700,000 sq mi), [1] or about 35.5 percent of the South ...
The Amazon rainforest, [a] also called Amazon jungle or Amazonia, is a moist broadleaf tropical rainforest in the Amazon biome that covers most of the Amazon basin of South America. This basin encompasses 7,000,000 km 2 (2,700,000 sq mi), [ 2 ] of which 6,000,000 km 2 (2,300,000 sq mi) are covered by the rainforest . [ 3 ]
A river in the Amazon. Along the Amazon River and many of its tributaries, high annual rainfall that occurs mostly within a rainy season results in extensive seasonal flooding of areas from stream and river discharge. [6] The result is a 10–15 m (33–49 ft) rise in water level, with nutrient rich waters.
Amazon rainforest, Manaus, Brazil. Tropical rainforests have a type of tropical climate (at least 18 C or 64.4 F in their coldest month) in which there is no dry season—all months have an average precipitation value of at least 60 mm (2.4 in). There are no distinct wet or dry seasons as rainfall is high throughout the months.
The Amazon region is notoriously humid, with rainfall generally more than 2,000 mm (79 in) per year and reaching as high as 3,000 mm (118 in) in parts of the western Amazon and near Belém. It is less widely known that, despite high annual precipitation, the Amazon forest has a three- to five-month dry season, the timing of which varies ...
In an average dry season, 110,000 km 2 (42,000 sq mi) of land are water-covered, while in the wet season, the flooded area of the Amazon basin rises to 350,000 km 2 (140,000 sq mi). [ 65 ] The quantity of water released by the Amazon to the Atlantic Ocean is enormous: up to 300,000 m 3 /s (11,000,000 cu ft/s) in the rainy season, with an ...
The Mato Grosso tropical dry forests ecoregion is a transitional zone between the moist forests of the Amazon basin to the north and the Cerrado of the Brazilian Highlands to the south. The annual floods and periodic fires in the dry season form a complex mosaic of forest, grasslands and transitional vegetation. [5]
Amazon River rain forest in Peru. Tropical rainforests are hot and wet. Mean monthly temperatures exceed 18 °C (64 °F) during all months of the year. [4] Average annual rainfall is no less than 1,680 mm (66 in) and can exceed 10 m (390 in) although it typically lies between 1,750 mm (69 in) and 3,000 mm (120 in). [5]