bassin versant

Contrôlée linguistiquement · modifiée le 10 September 2026 · fiche TERMDAT

Désignations

français	bassin versant Source : Site DETEC, OFEV, [Gestion](http://www.bafu.admin.ch/publikationen/publikation/01576/index.html?lang=fr) par bassin versant (8.12.2015). synonyme : bassin d’alimentation Source : ([Ordonnance, sur la protection des eaux, RS 814.20120.6.2014.](http://www.admin.ch/opc/fr/classified-compilation/19983281/index.html)) synonyme : bassin d’alimentation de captage Source : Syndicat intercommunal des eaux de la Garenne, [Bassin d'alimentation](http://siegarenne.fr/notre-eau/bassin-dalimentation/) (19.6.2014).
allemand	Einzugsgebiet Source : ([Gewässerschutzverordnung\s, SR 814.201 4.7.2014.](http://www.admin.ch/opc/de/classified-compilation/19983281/index.html))
italien	bacino idrografico Source : Convenzione concernente le derivazioni d'acqua dal lago di Costanza, RS [0.721.423](http://www.admin.ch/opc/it/classified-compilation/19660098/index.html) (27.2.2015). synonyme : bacino imbrifero Source : Ordinanza sulla protezione delle acque, RS [814.201](http://www.admin.ch/opc/it/classified-compilation/19983281/index.html) (9.1.2015)
anglais	catchment In water management the terms "catchment" and "watershed" can also refer to an administrative area. The UK Environment Agency, for example, distinguishes between "Management Catchments" and "Operational Catchments". // The term "catchment" is more commonly used by UK water authorities and academics, the term "watershed" is more common in the US and Canada. The terms are often used synonymously in development literature. Ensure that there is no confusion with the original meaning of "watershed" (divide between two catchments). Source : UK Department for Environment, Food and Rural Affairs, [Catchment Based Approach](https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/204231/pb13934-water-environment-catchment-based-approach.pdf): Improving the quality of our water environment (17.4.2015). synonyme : catchment area Source : European Environment Agency Glossary, [Catchment area ](http://www.eea.europa.eu/themes/water/wise-help-centre/glossary-definitions/catchment-area)(17.11.2014). synonyme : watershed Source : University of Bern, Centre for Development and Environment (CDE), Knowledge Management for Integrated Watershed Management and Disaster Risk Reduction (17.4.2015).

Codes : pays ou zone où la désignation a cours (CH, FR, DE, EU = Union européenne, INT = usage international). Une désignation barrée est déconseillée.

Définitions

français: Territoire géographique où toutes les gouttes de pluie tombant au sol s'écoulent et se rejoignent en un même endroit.
Syndicat intercommunal des eaux de la Garenne, [Bassin d'alimentation](http://siegarenne.fr/notre-eau/bassin-dalimentation/) (19.6.2014).
allemand: Gebiet bzw. Fläche, aus der ein Gewässersystem seinen Abfluss bezieht.
Wikipedia, [Einzugsgebiet](https://de.wikipedia.org/wiki/Einzugsgebiet) (12.1.2015).
italien: Zona che raccoglie le acque piovane e che corrisponde in idrografia all'area topografica (solitamente identificabile in una valle o una pianura), delimitata da uno spartiacque topografico (o orografico o superficiale), di raccolta delle acque che scorrono sulla superficie del suolo confluenti verso un determinato corpo idrico recettore (fiume, lago o mare interno) che dà il nome al bacino stesso.
Secondo Internet Wikipedia, [Bacino idrografico](https://it.wikipedia.org/wiki/Bacino_idrografico) (6.10.2015).
anglais: Land area that drains water to a particular stream, river or lake that can be identified by tracing a line along the highest elevations between two areas on a map, often a ridge, and may encompass a number of smaller watersheds (micro-watersheds) that ultimately combine at a common point.
Based on SDC, Water [Glossary](https://www.collaboration.eda.admin.ch/en/Documents/COO.2011.100.11.865247.pdf), Watershed (17.4.2015).

Contextes d'emploi

« Also known as drainage areas or river basins, watersheds are the zones from which rain or melting snow drains downhill into a river, lake, dam, estuary, wetland, sea or ocean. A watershed can be as large as several thousand square kilometres (as in the case of major river basins), or as small as a few hectares (as in the case of farm microwatersheds). Smaller watersheds are nearly always part of a larger watershed or river basin. »

Classement

Collections

Domaines

POLITIQUE
POLITIQUE › Politique étrangère

API

curl -H "Authorization: Token VOTRE_CLE" \
  "https://opendata.altius-group.ch/language/terminology/api/v1/concepts/termdat-537805/"

Données : TERMDAT, Chancellerie fédérale suisse, Section de terminologie. Données ouvertes de la Confédération (LINDAS), source à citer.