Groundwater - Water balance approach

8 important questions on Groundwater - Water balance approach

What is groundwater recharge?

The flux towards the groundwater and feeds the aquifers, which eventually leads to groundwater flow.

What is a difference in flow direction between soil moisture and groundwater?

Soil moisture moves mainly vertically and groundwater moves mainly horizontally.

What happens when actual evapotranspiration exceeds precipitation?

Salization problems may occur
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What is a problem when actual evopotranspiration exceeds precipitation?

Salinization.

How is the precipitation surplus written down?

P-ET

What is the equation for the two dimentional discharge through a cross-section at a certain distance from the water devide x?

q =R. x

Put coniferous, maize, bare soil and deciduos forest in order of increasing groundwater recharge.

1) coniferous
2) deciduous
3) maize
4) bare soil

What is the formula for two-dimensional discharge according to the water balance approach?

q=R times x
R can be calculated as: P-ET

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