Definition of drainage
1 : the act, process, or mode of draining also : something drained off. 2 : a device for draining : drain also : a system of drains. 3 : an area or district drained.
What is drainage in geography?
The flow of water through well-defined channels is known as ‘drainage’ and the network of such channels is called a ‘drainage system’. The drainage pattern of an area is the outcome of the geological time period, nature and structure of rocks, topography, slope, amount of water flowing and the periodicity of the flow.
What is drainage and types of drainage?
There are two main types of drainage system options: surface drains and french drains. Surface drainage systems consist of a few ground-level areas drains that are connected to PVC piping. When it rains, water flows down the drains, into the piping, and is transferred away from the house.
What is drainage Class 9?
Drainage’ is a term that defines an area’s river system. A drainage basin or river basin is an area that is drained by a single river system. A water division is considered an upland that divides two irrigation systems that are adjacent to each other. In this blog, we discuss drainage class 9 notes in detail.
What is natural drainage?
Natural drainage means a drainage consisting of native soils such as a natural swale or topographic depression which gathers or conveys run-off to a permanent or intermittent watercourse or waterbody.
What is drainage system class 11?
The flow of water through well-defined channels is known as ‘drainage’ and the network of such channels is called a ‘drainage system’. The drainage pattern of an area is the outcome of the geological time period, nature and structure of rocks, topography, slope, amount of water flowing and the periodicity of the flow.
What is drainage system in India?
Indian drainage system consists of a large number of small and big rivers. It is the outcome of the evolutionary process of the three major physiographic units and the nature and characteristics of precipitation. The Himalayan drainage system includes the Ganga, the Indus and the Brahmaputra river basins.
Is drainage a basin?
A drainage basin is an area of land where water from rain or snow melt drains downhill into a body of water such as a river, lake, wetland or ocean. The drainage basin includes both the streams and rivers that convey the water as well as the land surface from which water drains into those channels.
What is soil drainage?
Soil drainage is a natural process by which water moves across, through, and out of the soil as a result of the force of gravity. From: Encyclopedia of Soils in the Environment, 2005.
What is drainage in a building?
Drainage is the artificial removal of water, both surface and sub-surface. Drainage is often a major element of civil engineering and construction projects and is necessary to avoid flooding and other damage. Typically, effluent is conveyed by drains to sewers, and from sewers to a suitable outfall or treatment plant.
What is drainage and irrigation?
Definition. Irrigation and drainage – artificial application of water to land and artificial removal of excess water from land (Encyclopedia Britannica).
Why is drainage important?
Drainage ensures that the soil is properly aerated. If you have excess or standing water it can choke your crops. Drainage reduces soil and nutrient loss from runoff and can help avoid soil erosion. Drainage on hill slopes helps to reduce the risk of soil slippage.
What is the need of drainage?
It prevents water accumulation
This is the most important use of a good drainage system; it allows the free flow of water and in most cases prevents accumulation that can lead to flooding. Drainage systems also prevent the accumulation of stagnant water, which can encourage mosquitoes to breed.
What are advantages of drainage?
A drainage system provides the benefits of drainage that keep water from flowing back into your house and base, keeping any dirt and debris out of your base. It is also crucial to have a water drain in place if you live in an area where heavy rainfall can be expected throughout the year.
What is drainage and drainage basin?
A drainage basin is a region of land where water from rain or snowmelt drains downhill into a body of water, such as a river, lake, dam, estuary, wetland, sea or ocean. The drainage basin includes both the streams and rivers that convey the water as well as the land surfaces from which water drains into those channels.
What is a drainage basin class 9 answer?
Answer: The area drained by a single river system is called a drainage basin.
What is meant by drainage and drainage basin?
A drainage basin is an area of land drained by a river and its tributaries (river system). It includes water found in the water table and surface run-off. There is an imaginary line separating drainage basins called a watershed. Usually, this is a ridge of high land.
