Groundwater recharge

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Terms & Synonyms

Official WHO Definition

Groundwater recharge should be defined as the downward flow of water reaching the water table and replenishing groundwater resources (WHO 2006).

Other Definitions

Contents

Interpretations and Explanations

It is important to distinguish between infiltration of precipitation and groundwater recharge. [... ...] When rain falls, some infiltrates into the soil. Much of this moisture is taken up by the roots of plants and is subject to evapotranspiration from the soil zone, and some becomes interflow drainage to streams and rivers. Only a part of the infiltration becomes recharge and moves deeper into the subsurface under gravity, and in arid and semi-arid areas this may be a very small proportion indeed (WHO 2006).

References

WHO (2006) Protecting groundwater for health.

http://www.who.int/water_sanitation_health/en/

WHO Lexicon page (translations and examples)


See also

External Resources

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