ජලධර

ජලධර (ඉංග්‍රීසි:  aquifer) යනු ජලය සහිත පාරගම්ය පාෂාණ. කැඩුණු පාෂාණ හෝ අසම්පිණ්ඩිත ද්‍රව්‍යය (බොරළු, වැලි හෝ රොන්මඩ) වලින් සැදි භූගත ස්ථර වෙයි.

Schematic of an aquifer showing confined zones, groundwater travel times, a spring and a well

An aquifer cross-section. This diagram shows two aquifers with one aquitard (a confining or impermeable layer) between them, surrounded by the bedrock aquiclude, which is in contact with a gaining stream (typical in humid regions). The water table and unsaturated zone are also illustrated.

අමතර අවධානයට

• Aquifer storage and recovery
• Artesian aquifer
• Catchment hydrology
• Hydraulic tomography
• Overexploitation
• Seasonal thermal energy storage
• Spring (hydrology)
• Surficial aquifer

භාහිර සබැඳි

• IGRAC International Groundwater Resources Assessment Centre
• The Groundwater Project - Online platform for groundwater knowledge