A floodplain (or floodplain) is a generally flat area of land next to a river or stream. It stretches from the banks of the river to the outer edges of the valley. A floodplain consists of two parts. The first is the main channel of the river itself, called the floodway.
Why is it called floodplain?
A floodplain is where a stream or river regularly overflows, whether it's over a small area or gigantic area. The river or stream often overflows seasonally, and floodplains tend to be rich agricultural areas because of the sediment that is deposited during flooding .
What is a land area from which a river and its tributaries collect water?
A tributary is a stream that flows into a larger stream. A drainage basin is the land area from which a river and its tributaries. collect water. A divide is the high ground between two drainage basins.
Is a tributary a river?
A tributary is a freshwater stream that feeds into a larger stream or river . The larger, or parent, river is called the mainstem. The point where a tributary meets the mainstem is called the confluence. Tributaries, also called affluents, do not flow directly into the ocean.
What is a floodplain in geography?
A floodplain is an area of land which is covered in water when a river bursts its banks . ... Floodplains are often agricultural land, as the area is very fertile because it's made up of alluvium (deposited silt from a river flood). The floodplain is often a wide, flat area caused by meanders shifting along the valley.
What is the area of land drained by a river?
A watershed, also called a drainage basin or catchment , is an area drained by a river and its tributaries.
What kind of river is a tributary?
A tributary is a stream or a river which flows into a larger river . a tributary does not flow directly into a sea or ocean. For example, river Gomati and Son are the tributaries of river Ganga.
What is a famous floodplain?
Famous Floodplains
• Mississippi River floodplain , USA. • Pantanal floodplain, Brazil, Bolivia and Paraguay. • Amazon River floodplain, Brazil. • Ganges River and Brahmaputra River floodplain, Bangladesh and India.
Are floodplains good or bad?
Floodplains are an integral part of healthy rivers and floods are a natural occurrence on rivers. Small floods are very important to the health of a river and the land around it. They nurture life in and around rivers.
How do you identify a floodplain?
Floodplains are identified as zones on FEMA Flood Insurance Rate Maps (FIRMs) . Flood zones are defined by type, depth, and frequency of flooding.
What are branches of a river called?
A distributary, or a distributary channel , is a stream that branches off and flows away from a main stream channel. Distributaries are a common feature of river deltas. The phenomenon is known as river bifurcation. The opposite of a distributary is a tributary, which flows towards and joins another stream.
What is it called when a river meets a lake?
A tributary or affluent is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. ... A confluence , where two or more bodies of water meet together, usually refers to the joining of tributaries.
What is it called when a river joins another river?
Confluence – the point at which two rivers meet. Tributary – a small river or stream that joins a larger river.
What is a floodplain Class 9?
Complete answer: A floodplain is generally a flat area of land next to a river or stream . The plain stretches from the banks of the river to the outer edges of the valley. It consists of two parts. ... Basically the sediments make the soil much fertile and lead to the formation of a very flat fertile floodplain.
Why are floodplains so popular for developers?
Flood protection – Floodplains provide a buffer space between a river and inhabited areas at risk of flood . ... Maintaining water quality – Floodplains can act as a filter for nutrients and impurities. They can also reduce the amount of sediment in underground water sources.
Why are floodplains so flat?
A floodplain, or flood plain, is flat or nearly flat land adjacent to a stream or river that experiences occasional flooding . ... An erosional floodplain is created as a stream cuts deeper into its channel and laterally into its banks.
