Interflow is the lateral movement of infiltrated water in the vadose zone and is influenced by soil, geologic, and terrain properties in the surrounding area. As water infiltrates, some of it may reach a layer of soil or rock material that restricts downward movement and causes a perched water table.
Why is groundwater recharge important?
Groundwater recharge is an important process for sustainable groundwater management, since the volume-rate abstracted from an aquifer in the long term should be less than or equal to the volume-rate that is recharged. … Tree roots increase water saturation into groundwater reducing water runoff.
Is interflow an throughflow?
Interflow is sometimes used interchangeably with throughflow; however, throughflow is specifically the subcomponent of interflow that returns to the surface, as overland flow, prior to entering a stream or becoming groundwater.
What happens during throughflow?
In hydrology, throughflow, a subtype of interflow (percolation), is the lateral unsaturated flow of water in the soil zone, typically through a highly permeable geologic unit overlying a less permeable one. Water thus returns to the surface, as return flow, before or on entering a stream or groundwater.
What is Baseflow and interflow?
1): (1) direct surface runoff, direct surface-water inflow to the stream (2) groundwater base flow, composed of the water that percolates downward until it reaches the ground water reservoir and then flows to surface streams as ground-water discharge (3) interflow, the subsurface flow, in concentrated format, moving at …
What are the benefits of groundwater?
Advantages of Ground Water
- Ground water generally does not get polluted, if it is away (at least 20 mtr.) …
- Since bore well is closed, no risk of getting contaminated.
- Since it is closed no danger of children or animals falling into it.
- Temperature of deep water remains stable.
What affects the recharge of groundwater?
Groundwater recharge by natural or artificial means can cause changes in groundwater quality. These changes will depend on many factors, including the chemistry of the source water, land use, soil and sediment characteristics, the groundwater flow dynamics.
How can I improve my water table?
Protect : trees, water sheds,lakes, ponds, deep drilling for water in coastal areas and water conservations. Using injection wells can be a suitable method for this aim. In urban areas it is a hard task. Ground water level can be increased by ground water conservation and control use of water.
What is the flow of water called?
Streamflow, or channel runoff, is the flow of water in streams, rivers, and other channels, and is a major element of the water cycle. … The discharge of water flowing in a channel is measured using stream gauges or can be estimated by the Manning equation. The record of flow over time is called a hydrograph.
What is the meaning of interflow?
1 : a flowing into one another : a mixing together. 2 : a continuous reciprocal movement or exchange an interflow of ideas.
Why is evapotranspiration higher in summer?
Potential Evapotranspiration
PET is higher in the summer, on less cloudy days, and closer to the equator, because of the higher levels of solar radiation that provides the energy for evaporation. … The difference between potential evapotranspiration and precipitation is used in irrigation scheduling.
What is the meaning of base flow?
Base flow is a portion of the stream flow that is not runoff; it is water from the ground, flowing into the channel over a long time and with a certain delay.
What keeps a river flowing?
A river forms from water moving from a higher elevation to a lower elevation, all due to gravity. When rain falls on the land, it either seeps into the ground or becomes runoff, which flows downhill into rivers and lakes, on its journey towards the seas. … Rivers eventually end up flowing into the oceans.
What is the method used to recharge the groundwater?
Recharge wells, commonly called injection wells, are generally used to replenish groundwater resources when aquifers are located at greater depth and confined by materials of low permeability. All subsurface methods are prone to clogging because of suspended solids, biological activity or chemical impurities.
What would happen if there was no groundwater?
Large bodies of water will become more shallow from groundwater depletion. A groundwater shortage keeps additional water from flowing into lakes, rivers and seas. This means that over time, less water will enter as the existing surface water continues to evaporate.
Which trees increase ground water level?
The below are the plants it has good root system and can able to increase ground water level.
- Thespesia Populnea.
- Margosa tree
- Banyan Tree.
Does rain fill your well?
YES! Rainfall has a direct impact on the local water table, which may immediately impact your residential well if it is supplied by shallow aquifers. … Your well may not ‘fill up’ when it rains, but it does reap the indirect benefits.
Is it good to drink underground water?
Generally, both ground water and surface water can provide safe drinking water, as long as the sources are not polluted and the water is sufficiently treated. … Ground water is, in general, easier and cheaper to treat than surface water, because it tends to be less polluted.
What is groundwater and why is it important?
Groundwater, which is in aquifers below the surface of the Earth, is one of the Nation’s most important natural resources. … It often takes more work and costs more to access groundwater as opposed to surface water, but where there is little water on the land surface, groundwater can supply the water needs of people.
What is direct run off?
Water that flows over the ground surface directly into streams, rivers, or lakes. Also called storm runoff.
What does hydrograph mean?
A hydrograph is a graph showing stage discharge Volume of runoff, or other properties of water flow with respect to time.
What are the factors affecting run off?
Meteorological factors affecting runoff:
- Type of precipitation (rain, snow, sleet, etc.)
- Rainfall intensity.
- Rainfall amount.
- Rainfall duration.
- Distribution of rainfall over the watersheds.
- Direction of storm movement.
- Antecedent precipitation and resulting soil moisture.