Definition
An aquifer is a body of permeable rock or sediment that can store and transmit substantial amounts of groundwater.
Expanded Explanation
Aquifers are vital components of the Earth’s hydrologic cycle, acting as natural reservoirs and distribution systems for freshwater.
Importance
Aquifers play a critical role in providing freshwater for human consumption, agriculture, and natural ecosystems. They are also important for maintaining base flow in rivers during dry periods.
Context and Usage
The term ‘aquifer’ is used in hydrogeology, environmental science, and water resource management. It refers to underground layers of rock, gravel, sand, or silt from which groundwater can be extracted.
Examples
- Example 1: The Ogallala Aquifer in the United States is one of the world’s largest aquifers, supplying water for irrigation, drinking, and industrial use.
- Example 2: The abstraction of water from coastal aquifers can lead to saltwater intrusion, a concern in many coastal regions worldwide.
Understanding Aquifer
A common misconception is that all underground water resides in aquifers. In reality, not all underground water is easily accessible or suitable for use; only water in aquifers can be readily extracted.
Related Glossary Terms
- Groundwater: This is the water found in aquifers.
- Hydrogeology: This is the field of study that includes the study of aquifers.
Visual and Reading Aids
External Resources
- US Geological Survey: Groundwater Storage and the Water Cycle ↗
- National Geographic: Water Tables and Aquifers ↗
Related Articles
- Aquifer Def Demystified: The Secrets of Subsurface Water: This article provides an in-depth explanation about aquifers, which are underground layers of water-bearing permeable rock or unconsolidated materials from which groundwater can be extracted. It explores how these vital natural reservoirs function, their importance in our ecosystem, and the challenges related to their conservation and sustainable use.
- The Hidden Rivers: Exploring the World of Underground Aquifers: The article discuss the concept of aquifers, their importance in our ecosystem, and the threats they face, along with potential conservation methods. It also includes a case study of successful aquifer management in the Edwards Aquifer in Texas, and it recommends further reading for those interested in diving deeper into the subject.
