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.
