The largest plain in the world is

The largest plain in the world is the Amazon Plain.

1. The Amazon Plain is located in northern South America, in the middle and lower reaches of the Amazon River, between the Guyana Plateau and the Brazilian Plateau, covering an area of ??5.6 million square kilometers.

2. The Amazon Plain borders the Andes to the west, the Atlantic Ocean to the east, and spans the territories of Brazil, Peru, Colombia and Bolivia.

3. The Amazon Plain is the largest alluvial plain in the world. It is densely covered with tropical rainforests and has a wide variety of plants and endemic species. It is also rich in animal species, especially arboreal animals. Mineral deposits mainly include petroleum.

4. The Amazon Plain is sparsely populated, with a total population of about 15 million, including 100,000 Indians living in dense forests. Planned migration and development of agriculture and animal husbandry, development of natural resources, and construction of a comprehensive The Amazon Highway.

Introduction to the topography of the Amazon Plain:

1. The Amazon Plain is wide in the west and narrow in the east, with a maximum width of 1,280 kilometers; the terrain is low and flat. Most of them are below 150 meters above sea level, and Manaus in the middle of the plain is only 44 meters above sea level. It is lower in the east, gradually approaching sea level.

2. The floodplain of the Amazon Plain accounts for about 10% of the plain area. It is composed of soft modern alluvium. The terrain is particularly low. Beyond the floodplain, there is a high plain above the steep bank of 45 to 60 meters. The surface material consists of sand and clay from the Tertiary and Quaternary periods.

3. The Amazon Plain was formed on the basis of the depression of the Amazon on the South American continental platform. After it rose and became land in the Quaternary, it was formed by the alluvial accumulation of the trunk and tributaries of the Amazon River. Near the downstream river mouth, due to modern Subsidence, no delta exposed.