Where is Amazon?

It is the river with the largest flow, the largest basin and the most tributaries in the world. Because the method of measuring the length of the river is inconclusive, there are many different opinions about the length of the Amazon River, one of which is the common 6400 kilometers.

The Amazon River is the second longest river and the largest river in the world. Its river flow reaches 2,654.38+0.9 million cubic meters per second, which is several times larger than the sum of the other three rivers: Nile (Africa), Yangtze River (China) and Mississippi River (USA).

It is equivalent to the flow of seven Yangtze rivers, accounting for 20% of the world's river flow, with a basin area of 6910.5 million square kilometers, accounting for 40% of the total area of South America, and the number of tributaries exceeds 6,543,800+0.5 million.

* * * The river has 65,438+0.5 million tributaries, which are distributed in a large area of South America, and the basin area is almost as large as the whole of Australia. Among the tributaries, 7 tributaries are more than 65,438+0,600 kilometers long.

The longest is the Madeira River, which is more than 3,200 kilometers long. Most of the tropical rainforests in the Amazon basin are located in Brazil, with an area about twice that of India and an altitude of no more than 200 meters. The Amazon River is flat, so it is affected by the Atlantic tides for 966 kilometers as far as Obidos.

Most areas in the basin have a tropical rainforest climate, and the upper reaches have a plateau and mountainous climate, with an annual rainfall of more than 2000 mm. The fertile silt deposited by the Amazon River nourishes an area of 6.5 million square kilometers. The famous Amazon rainforest grows in the Amazon River basin, which is also the largest plain in the world (with an area of 5.6 million square kilometers).

The plain is low and flat, mostly below150m above sea level. Therefore, there are many rivers and lakes here, and rainy, humid and continuous high temperature are its remarkable climate characteristics.

Due to the rain near the equator, the Amazon water is abundant all the year round, and the annual average flow of the Amazon estuary is 220,000 cubic meters per second, making it the widest and largest river in the world. Brazilians proudly call it rivers and oceans. It is estimated that about 20% to 25% of all water flowing on the earth's surface is in the Amazon River.

Some Amazon rainforests have been turned into protected areas, such as the Amazon National Park on the banks of the Taparros River, which covers an area of nearly 10000 km? However, if the rate of deforestation is not slowed down, Amazon, which accounts for 2/3 of the global forest area, will disappear in 2 1 century.

The Amazon river carries a lot of sediment. Because most coarse-grained materials are deposited near the estuary to form many sand islands, some suspended substances are transported northwest along the coast, and the terrain sinks, so it is impossible to form a wide underwater delta.

The estuary is wide and deep, with an average water depth of about 60 meters and the deepest point of 90 meters. The 7000-ton seagoing vessel can go straight to Manaus. Amazon rainforest is rich in natural resources, but it needs further development. The offshore area is rich in bass, herring, mackerel and cod, which is one of the three major fishing grounds in Latin America.