strategy
Recharging aquifers
Synonyms:
Storing freshwater undergroundUsing underground water storage
Supplying adequate water storage
Description:
The availability of fresh water in a region can be augmented by cutting loss through evaporation, by means of underground storage instead of storage in surface-water reservoirs. The costs, while high, seem reasonable compared to alternative schemes.Preserving natural storage can avoid the costly construction - and maintenance - of dams and reservoirs, save costs incurred by flood damage, and offer a reliable source of water supply for drinking and agricultural purposes.
Context:
Most groundwater resources are being replenished at a rate of between 0.1% and 0.5%. Implementation:
At present, more than 20 countries have projects to recharge ground water artificially, but in only a few of them has the practice been implemented on a large scale.Underground water storage may hold special potential for developing countries subject to the destructive flooding and perennial dry spells of monsoon climates. Many aquifers are recharged unintentionally by seepage from irrigation canals. In such cases, managing ground water in conjunction with surface irrigation water, without developing additional surface-water sources, might help to prevent waterlogging and salinization and make possible the expansion of the irrigation area.
Broader:
Collecting waterManaging water suppliesReplacing renewable resourcesConserving underground water resourcesUsing water Constrains:
Slowing down rising level of underground water Constrained by:
Reducing watertable Facilitates:
Augmenting present water supplyIncreasing water storage capacityEmploying underground water suppliesBroadening irrigation water developmentSlowing down overexploitation of underground water resources Facilitated by:
Constructing stream catchment area Values:
Underground Subjects:
Hydrology → WaterGeology → Geology
Transportation, Telecommunications → Storage
Commerce → Purchasing, supplying
Type Classification:
D: Detailed strategies Related UN Sustainable Development Goals:
