1. Watercourses
1.1 Definition and structure
Whatever its size, a watercourse (or a body of water, in the case of lacustrine or stagnant environments) is formed within a drainage basin (BV), which constitutes its recharge surface. A BV is a water collection area located upstream of a geographical point and defined as an outlet. This area is bounded by the contour within which all water flows, above and below ground, towards this outlet. Its boundaries are known as watersheds.
This definition applies to all sizes of watercourse, from the smallest stream to the world's largest rivers. Given this mode of formation, there are links between the surface area of the BV, its climato-geographical situation and the flow of the watercourse (hydrographic...
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Watercourses
River degradation: causes and effects
Bibliography
Websites
Other works
Analysis of the evolution of water laws and their effects:
https://revue-set.fr/issue/view/709
Bilan de la loi sur l'eau 30 ans après (revue Pour mémoire du comité d'histoire de la transition écologique (n° 35, hiver 2023) :
Standards and norms
- Water quality – Determination of the river macrophytic biological index (IBMR) - NF T90-395 - 2003
- Water quality – Determination of the standardized global biological index (IBGN) - NF T90-350 - 2004
- Water quality – Aquatic macroinvertebrate sampling in shallow rivers - NF T90-333 - 2016
- Water quality – Analysis of macroinvertebrate samples from rivers, canals and lakes - NF T90-388 - 2020
Regulations
Arrêté du 16 mai 2005 portant délimitation des bassins ou groupements de bassins en vue de l'élaboration et de la mise à jour des schémas directeurs d'aménagement et de gestion des eaux (JORF n°113 du 17 mai 2005), version consolidée 1 er janvier 2020
Arrêté du 12 janvier 2010 relatif aux méthodes et aux critères à mettre en œuvre pour délimiter et classer...
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European Environment Agency (EEA) :
National Water Committee :
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