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Most of the interior of the Amazon basin is covered by rainforest. [6] The dense tropical Amazon rainforest is the largest tropical rainforest in the world. [2] It covers between 5,500,000 and 6,200,000 square kilometres (2,100,000 and 2,400,000 sq mi) of the 6,700,000 to 6,900,000 square kilometres (2,600,000 to 2,700,000 sq mi) Amazon biome.
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 ]
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]
Experts predict that if 20-25% of the Amazon is lost, it could go into irretrievable decline but even before this year’s wildfires, up to 17% of the Amazon rainforest was estimated to have ...
It has a total area of 3,288 hectares (8,120 acres). [5] The research area is about 80 kilometres (50 mi) north of the city of Manaus. [6] On average, the Amazon Basin ranges from 1,900 to 2,500 millimeters of rainfall annually, while the mean annual temperature is 26 °C with a prominent dry season from June through October. [7]
Their distributions either follow main water courses, from East Amazonia to the central basin, [25] or are located on interfluvial sites (mainly of circular or lenticular shape) and of a smaller size averaging some 1.4 hectares (3.5 acres) (see distribution map of terra preta sites in Amazon basin). [26]
In 2001, the Amazon was approximately 5,400,000 square kilometres (2,100,000 sq mi), which is only 87% of the Amazon's original size. [2] According to official data, about 729,000 km² have already been deforested in the Amazon biome, which corresponds to 17% of the total. 300,000 km² have been deforested in the last 20 years.
However, between approximately 500 BCE and 300 to 600 CE, the Kilamope and later Upano cultures began to build mounds and set their houses on earthen platforms, according to the study authors.