Hidden Treasure: 10 reasons to know more about groundwater / 2 priorities to take seriously – briefing note

GROUNDWATER is the water stored in the pores and other openings in rocks below ground. It is a precious resource which must be safeguarded for the benefit of mankind.

2. However, from a water resource point of view, what matters is how much natural replenishment, or recharge, takes place

Recharge rates vary from a few to hundreds of millimetres per year. In dry regions recharge ranges from zero to a few mm per year.

In humid regions recharge rates represent a higher proportion of rainfall.

Find out more:

• Groundwater recharge in Africa: identifying critical thresholds

• Optimising Road Development for Groundwater Recharge and Retention

What you can do:

Join the conversation through the RWSN Sustainable Groundwater Development community: https://dgroups.org/RWSN/groundwater_rwsn