Groundwater
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Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available fresh water in the world is gro
Dzherelo, a common source of drinking water in a Ukrainian village
The entire surface water flow of the Alapaha River near Jennings, Florida, going into a sinkhole leading to the Floridan Aquifer groundwater
Groundwater may be extracted through a water well
Center-pivot irrigated fields in Kansas covering hundreds of square miles watered by the Ogallala Aquifer
Water resources
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Water resources are natural resources of water that are potentially useful for humans. For example, they serve as a source of drinking water or irrigation water. These resources may consist of freshwa
Lake Chungará and Parinacota volcano in northern Chile
Panorama of a natural wetland (Sinclair Wetlands, New Zealand)
Total renewable freshwater resources of the world, in mm/year (1 mm is equivalent to 1 L of water per m2) (long-term average for the years 1961–1990). Resolution is 0.5° longitude x 0.5° latitude (equivalent to 55 km x 55 km at the equator). Computed by the global freshwater model WaterGAP.
Irrigation of agricultural fields in Andalusia, Spain. Irrigation canal on the left.