Respuesta :
The quantity of rain, vegetation, soil type, landform, and human use of the land are the five key determinants of runoff in a region.
What is Runoff?
- Runoff occurs when there is more water than the land can absorb. The extra liquid drains into surrounding creeks, streams, or ponds after flowing across the land's surface. Both natural processes and human activities can produce runoff.
- Snowmelt is the most well-known kind of natural runoff. Heavy snowfalls that mountains cannot absorb result in runoff that eventually forms streams, rivers, and lakes. Rain, snow, and glaciers all play a part in this organic discharge.
- Additionally, runoff happens naturally as soil erodes and is moved to different bodies of water. Even harmful substances are carried into streams by natural events like volcanic eruptions. Volcanic gases eventually make their way back into the water or land as precipitation.
- Large urban, suburban, or rural regions can all be nonpoint sources of runoff. In some locations, irrigation and rains both wash chemicals into nearby streams. Lawn fertiliser, vehicle exhaust, and even gasoline from a spilled car are examples of nonpoint source runoff. As fertilizers and pesticides are discharged into bodies of water during irrigation and rain, farms represent a significant nonpoint source of runoff.
- Runoff is accelerated by impervious surfaces or surfaces that cannot absorb water. Impervious surfaces include parking lots, walkways, and roads. Materials as various as car-washing soaps, trash, and gas station spill end up in a runoff.
The quantity of rain, vegetation, soil type, landform, and human use of the land are the five key determinants of runoff in a region.
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The rainfall duration, topography of storm movement, soil ,land use are the determining factor of runoff.
What is Runoff?
Runoff occurs when the water is more as comparative to land for absorption.
Factors of Runoff:
1)The rainfall duration is directly proportional to runoff ,more the duration of rainfall more will be runoff.
2) Runoff will be more at smooth surface as compare to rough surface.
3) The land pattern have significant role in affection on runoff.The surface full of grass there will be more absorption so,less runoff.
4)Type of soil also effects the runoff ,some soils have less ability to absorb water but some have more ability.
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