Question

Describe how the geology in a watershed affects the groundwater recharge.

Answer 1

Answer: Watershed can be defined as an area in which water flows down, such as a river, lake, sea, or ocean; a drainage basin.

Groundwater recharge can be defined as the process of replenishing groundwater from the surface of the land.

This process occurs naturally by rain and melting of snow.

The watershed boundaries are high lands that divide one watershed from another. The water from the watershed flows downwards into the groundwater. The topography of a watershed is a downward slope

Answer 2

The geology of a watershed which could affect groundwater recharge include the nature of the formation in terms of porosity and permeability which impacts the rate and amount of surface water which precolates into the ground to recharge ground water.

Watershed are simply surface terrains over which water from Rainfall and other sources is captured and chanelled into water bodies such as streams and lakes while also percolating into the ground to recharge serve as groundwater recharge.

The nature of the soil along the path or area of the watershed would affect the amount of water and rate at which groundwater is recharged.

Watersheds with clay formations will have a lower and amount of groundwater recharge compared to sandy formations due to lower porosity and permeability level of clay.

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