The area of land from which all surface run-off flows through a sequence of streams, rivers and, possibly, lakes into the sea at a single river mouth, estuary or delta.
The area of land from which all surface run-off flows through a sequence of streams, rivers and, possibly, lakes into the sea at a single river mouth, estuary or delta.
Inland waters, transitional waters, and coastal waters are included in the definition, except for groundwater. However, when considering chemical status, territorial waters are also included.
Learn moreGroundwater is the water found beneath the Earth's surface in the saturation zone, in direct contact with the ground or subsoil.
Learn moreAn ecosystem is a dynamic system where plants, animals, microorganisms, and their environment interact. The IUCN Global Ecosystem Typology 2.0 categorizes different types of ecosystems.
Learn moreThe total amount of water and waste that an organization releases to surface water, groundwater, or third parties during a specific time period.
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