water wells
type: Concept
broader: groundwater

water features
type: Concept
narrower: groundwater

groundwater
type: Concept
narrower: water springs
narrower: wells (groundwater)
narrower: water wells
narrower: natural springs
broader: water features
broader: pollution
broader: geomorphology
broader: geological phenomena
definition: Groundwater is underground water found in the pore spaces and cracks of soil, sand, and rock. The source of all groundwater is precipitation, either through direct percolation into the earth's surface, or through replenishment from local surface water including lakes, ponds, wetlands or rivers. [Source: Encyclopedia of Environment and Society; Groundwater]

water springs
type: Concept
broader: groundwater

wells (groundwater)
type: Concept
broader: groundwater

natural springs
type: Concept
broader: groundwater

pollution
type: Concept
narrower: groundwater

geomorphology
type: Concept
narrower: groundwater

geological phenomena
type: Concept
narrower: groundwater

concepts
type: Collection
type: ConceptGroup
member: groundwater