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gptkbp:instanceOf
|
gptkb:reservoir
|
|
gptkbp:alsoKnownAs
|
gptkb:High_Plains_Aquifer
|
|
gptkbp:area
|
about 174,000 square miles
|
|
gptkbp:contains
|
freshwater
sand, gravel, clay, silt
|
|
gptkbp:firstMapped
|
1898
|
|
gptkbp:governedBy
|
state water laws
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Ogallala Aquifer
|
|
gptkbp:importantFor
|
critical for U.S. agriculture
|
|
gptkbp:locatedIn
|
gptkb:Colorado
gptkb:Kansas
gptkb:Nebraska
gptkb:New_Mexico
gptkb:Oklahoma
gptkb:South_Dakota
gptkb:Texas
gptkb:United_States
gptkb:Wyoming
gptkb:Great_Plains
gptkb:Eastern_Colorado
|
|
gptkbp:mainRechargeSource
|
precipitation
surface water infiltration
|
|
gptkbp:majorCitiesAbove
|
gptkb:Midland
gptkb:Odessa
gptkb:Amarillo
gptkb:Dodge_City
gptkb:Garden_City
gptkb:North_Platte
gptkb:Lubbock
Liberal
|
|
gptkbp:managedBy
|
local and state agencies
|
|
gptkbp:maximumDepth
|
ranges from a few feet to over 1,000 feet
|
|
gptkbp:namedAfter
|
gptkb:Ogallala,_Nebraska
|
|
gptkbp:notableFeature
|
one of the world's largest aquifers
|
|
gptkbp:partOf
|
gptkb:High_Plains_Aquifer_System
|
|
gptkbp:providesWaterFor
|
drinking water
irrigation
|
|
gptkbp:receivesWaterFrom
|
over 2 million people
one-fifth of U.S. irrigated farmland
|
|
gptkbp:rechargeRate
|
very slow
|
|
gptkbp:rechargeTime
|
thousands of years
|
|
gptkbp:studiedBy
|
gptkb:U.S._Geological_Survey
|
|
gptkbp:threats
|
climate change
declining water levels
over-extraction
agricultural use
|
|
gptkbp:volume
|
estimated at about 2,900 cubic kilometers
|
|
gptkbp:waterLevelDecline
|
up to 150 feet in some areas
|
|
gptkbp:形成时期
|
Miocene to Pliocene
|
|
gptkbp:bfsParent
|
gptkb:Amarillo,_Texas,_United_States
|
|
gptkbp:bfsLayer
|
5
|