Environmental Fluid Mechanics - Mechanique des Fluides Environnementaux, Paperback / softback Book

Environmental Fluid Mechanics - Mechanique des Fluides Environnementaux Paperback / softback

Edited by CIGB ICOLD

Part of the ICOLD Bulletins Series series

Paperback / softback

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Dams are planned, constructed, and operated to meet human needs - generation of energy, irrigated agricultural production, flood control, public and industrial supply, supply of drinking water, and various other purposes.

Dams impound water in reservoirs during times of high flood that can be used for human requirements during times with inadequate natural flows.

Positive impacts of dams are improved flood control, improved welfare resulting from new access to irrigation and drinking water.

Without dams there would be insufficient food to feed the world's people and energy would be generated by burning fossil fuels that produce greenhouse gases.

Despite this progress there remain significant concerns about the environmental impacts of dams.

These environmental impacts are complex and far reaching, remote of the dam, and may occur in time with the dam construction or later and may lead to a loss of biodiversity and of productivity of natural resources. This bulletin compiles improvements in knowledge and state of the art technology to avoid or mitigate environmental impacts of dams on the natural ecosystem as well as to the people that depend upon them for their livelihood and also addresses the mitigation of environmental impacts on dams and reservoirs. Les barrages sont planifies, construits et exploites de maniere a repondre aux besoins humains.

Les barrages retiennent l'eau dans les reservoirs pendant les periodes de forte crue, une eau qui peut etre utilisee pour les besoins de l'homme pendant les periodes d'insuffisance des debits naturels.

Les impacts positifs de barrages sont le controle des crues et l'amelioration du bien-etre resultant du nouvel acces a l'irrigation et a l'eau potable.

Sans barrages, la production alimentaire serait insuffisante pour nourrir la population du globe et l'energie serait generee en brulant des combustibles fossiles qui produisent des gaz a effet de serre.

Malgre ces progres, d'importantes preoccupations subsistent quant aux retombees des barrages sur l'environnement.

Les impacts environnementaux sont complexes et d'une grande portee.

Ils peuvent se produire au moment de la construction du barrage ou plus tard et peuvent entrainer une perte de la biodiversite et de la productivite des ressources naturelles. Le present bulletin compile l'amelioration des connaissances et des technologies les plus recentes pour eviter ou attenuer les impacts environnementaux des barrages sur l'ecosysteme naturel ainsi que pour les personnes qui en dependent pour leur subsistance.

Il aborde egalement l'attenuation des impacts environnementaux sur les barrages et les reservoirs.