it takes over 6,000 years for the ogallala aquifer to recharge.
it takes over 6,000 years for the ogallala aquifer to recharge.
how long does it take for the ogallala aquifer to recharge?
over 6,000 years
large scale extraction for agricultural purposes started after world war ii due partially to center pivot irrigation and to the adaptation of automotive engines for groundwater wells. today about 27% of the irrigated land in the entire united states lies over the aquifer, which yields about 30% of the ground water used for irrigation in the united states. the aquifer is at risk for over-extraction and pollution. since 1950, agricultural irrigation has reduced the saturated volume of the aquifer by an estimated 9%. once depleted, the aquifer will take over 6,000 years to replenish naturally through rainfall.
ogallala aquifer
bullet::::- hydrogeology









































bullet::::- irrigation









































bullet::::- laurentide ice sheet









































bullet::::- llano estacado









































bullet::::- water table









































bullet::::- western interior seaway, the salt-water strait that once covered the area of today's ogalalla aquifer.









































section::::external links.









































bullet::::- "the ogallala aquifer" manjula v. guru, agricultural policy specialist and james e. horne, president & ceo, the kerr center for sustainable agriculture, poteau, oklahoma









































bullet::::- usgs high plains regional groundwater study









































bullet::::- a legal fight in texas over the ogallala aquifer









































bullet::::- kansas geological survey information on the high plains / ogallala aquifer
ogallala aquifer