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Lake (body of water, pond, etc.) whose waters enriched with organic matter (containing nitrogen, phosphorus, potassium for example) are places of an algal and bacterial proliferation.
Surface water in which there is little or no flow. For example, lakes or ponds are standing water.
A set of geographic layers presenting hydrographic objects for the French territory. This includes cutting the territory into "hydrographic areas" (river basins) as well as watercourses and bodies of water, and the codification of these objects. The Carthage database (Database on thematic mapping of the Water Agencies) was developed by IGN, the Water Agencies and the Ministry for the Environment and is based on the hydrographic layer of the CARTO database. The National Service for Water Data and Reference-dataset Management (Sandre) disseminates this geo-referenced dataset through its data catalogue and cartographic Atlas.
Space characterized by climate, geographical, physical, morphological and geological factors, ... in constant or cyclic equilibrium and occupied by organisms that live in specific association (living communities). This is the non-living component (abiotic) of the ecosystem.
Domain consisting of rivers and lakes belonging to the State, local authorities or their groupings, and classified in their public domain fluvial. The delimitation of state watercourses is determined by decree in Council of State.
Change in water level as a function of periods of high or low-flow in a body of water, or of the level of high tide and low sea water level. It is measured in metres between two dates.