alluvial plains

Alluvial plains are flat, fertile areas formed by the accumulation of sediment deposited by flowing rivers over time. As rivers move and meander across landscapes, they carry soil and other materials. When the water slows down, especially during floods, it drops these sediments, creating rich, level land ideal for agriculture. These plains often have numerous channels, fertile soil, and are prone to periodic flooding, which continually refreshes their nutrients. Examples include the Indo-Gangetic Plain in India and the Mississippi River Basin in the United States. They are vital for farming, supporting diverse ecosystems, and often serve as major population centers.