Download or read book Environmental Fluid Mechanics M chanique des Fluides Environnementaux written by CIGB ICOLD and published by CRC Press. This book was released on 2022-10-28 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 planifiés, construits et exploités de manière à répondre aux besoins humains. Les barrages retiennent l'eau dans les réservoirs pendant les périodes de forte crue, une eau qui peut être utilisée pour les besoins de l'homme pendant les périodes d’insuffisance des débits naturels. Les impacts positifs de barrages sont le contrôle des crues et l'amélioration du bien-être résultant du nouvel accès à l'irrigation et à l'eau potable. Sans barrages, la production alimentaire serait insuffisante pour nourrir la population du globe et l'énergie serait générée en brûlant des combustibles fossiles qui produisent des gaz à effet de serre. Malgré ces progrès, d'importantes préoccupations subsistent quant aux retombées des barrages sur l’environnement. Les impacts environnementaux sont complexes et d’une grande portée. Ils peuvent se produire au moment de la construction du barrage ou plus tard et peuvent entraîner une perte de la biodiversité et de la productivité des ressources naturelles. Le présent bulletin compile l'amélioration des connaissances et des technologies les plus récentes pour éviter ou atténuer les impacts environnementaux des barrages sur l'écosystème naturel ainsi que pour les personnes qui en dépendent pour leur subsistance. Il aborde également l'atténuation des impacts environnementaux sur les barrages et les réservoirs.
Download or read book Assessment of the State of Microbiological Pollution of the Mediterranean Sea written by and published by . This book was released on 1996 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles and Methods for Determining Ecological Criteria on Hydrobiocenoses written by R. Amavis and published by Elsevier. This book was released on 2013-10-22 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles and Methods for Determining Ecological Criteria on Hydrobiocenoses is a collection of papers presented at the 1975 European Scientific Colloquium on Principles and Methods for Determining Ecological Criteria on Hydrobiocenoses, held in Luxembourg. This Colloquium aims to define a scientific basis for assessing the results of pollution on aquatic fauna and flora, as well as the biological methods to be used in assessing the extent of such pollution. This book is organized into four parts encompassing 29 chapters. After a brief overview of a series of parameters for the specific uses of different water classifications and regional evaluation of water pollution, this book goes on examining the ecological consequences of water pollution establishment of criteria and the ecological variable and their effect on aquatic fauna. These topics are followed by a discussion of the value of aquatic plants in water quality characterization, as well as the principles of the methods used. The succeeding parts highlight the concepts and practical methods used in the biological monitoring of surface waters. These parts particularly consider the benefits of using bioindicators and laboratory bioassays. The concluding discusses a comparative study of biological-ecological water assessment methods of water quality. This book will be of value to environmental scientists, engineers, and researchers.
Download or read book Eutrophication in Coastal Waters Nitrogen as a Controlling Factor written by University of California (System). Institute of Marine Resources and published by . This book was released on 1971 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dams and Water Transfers An Overview Barrages et Transferts d Eau Aper u written by Cigb Icold and published by CRC Press. This book was released on 2021-08-09 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present Bulletin presents a complete response from the ‘Technical Committee of ICOLD on Dams and Water Transfer (CDWT)’ to the Terms of Reference. It starts with related global information, brings out related efforts made in countries with completely differing climate, economy, population distribution etc. about present status within and between river basins & countries – both surplus and or deficit, while recognizing the crucial role played by dams in water transfer to needy regions. It then enumerates guidelines followed in considering various options, while identifying geographical issues, limited by political territories & legal issues like water treaties. Essentially then, it dwells on possible need, potential and problems in water transfers that must be handled to overcome B/C issues faced by needy countries. In order to assist concerned professionals, the Bulletin finally elaborates on objections raised by different stake-holders in the subject and provides answers generated globally. The on-going debate world-over about WRD versus environmental impacts is then dealt with to help Member-countries overcome various issues. Le présent Bulletin présente une réponse complète du « Comité Technique sur les barrages et les transferts d’eau ». Il commence par des informations mondiales, fait ressortir les efforts déployés dans des pays au climat, à l'économie, à la répartition de la population, etc. complètement différents sur l'état actuel au sein et entre les bassins fluviaux et les pays - à la fois excédentaire et / ou déficitaire, tout en reconnaissant le rôle crucial joué par les barrages dans le transfert d'eau vers les régions nécessiteuses. Il énumère ensuite les lignes directrices suivies pour considérer diverses options, tout en identifiant les problèmes géographiques, limités par les territoires politiques et les questions juridiques comme les traités sur l'eau. Essentiellement, il s'attarde donc sur les besoins, le potentiel et les problèmes possibles des transferts d'eau qui doivent être traités pour surmonter les problèmes auxquels sont confrontés les pays dans le besoin. Afin d'aider les professionnels concernés, le Bulletin élabore enfin les objections soulevées par les différents acteurs du sujet et apporte des réponses générées globalement. Le débat en cours dans le monde entier par rapport aux impacts environnementaux est ensuite traité pour aider les pays membres à surmonter divers problèmes.
Download or read book The National Estuarine Eutrophication Project written by and published by . This book was released on 1991 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Ninth Session of the Committee for Inland Fisheries of Africa written by Food and Agriculture Organization of the United Nations. Committee for Inland Fisheries of Africa. Session and published by Food & Agriculture Org.. This book was released on 1995 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapport de la cinqui me Consultation technique du Conseil g n ral des p ches pour la M diterran e sur l valuation des stocks dans l Adriatique et la mer Ionienne written by J. F. Caddy and published by Food & Agriculture Org.. This book was released on 1988 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Contamination written by International Association of Hydrological Sciences. Scientific Assembly and published by . This book was released on 1997 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eutrophication causes consequences and control written by Abid A. Ansari and published by Springer Science & Business Media. This book was released on 2010-10-17 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eutrophication continues to be a major global challenge to water quality scientists. The global demand on water resources due to population increases, economic development, and emerging energy development schemes has created new environmental challenges to global sustainability. Eutrophication, causes, consequences, and control provides a current account of many important aspects of the processes of natural and accelerated eutrophication in major aquatic ecosystems around the world. The connections between accelerated eutrophication and climate change, chemical contamination of surface waters, and major environmental and ecological impacts on aquatic ecosystems are discussed. Water quality changes typical of eutrophication events in major climate zones including temperate, tropical, subtropical, and arid regions are included along with current approaches to treat and control increased eutrophication around the world. The book provides many useful new insights to address the challenges of global increases in eutrophication and the increasing threats to biodiversity and water quality.
Download or read book Mediterranean Coastal Pollution written by S. H. Jenkins and published by Elsevier. This book was released on 2013-10-02 with total page 879 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mediterranean Coastal Pollution focuses on scientific and technical information on the progress of measures and initiatives relative to the control of pollution in the Mediterranean. The book commences by pointing to the Mediterranean Action Plan. Particularly given consideration are the related legislation, the environmental assessment and management components of the plan, and present stage of the plan. The book also discusses the remedies and initiatives that need to be undertaken in the event of marine accidents. The methods to measure the quantity of pollutants in water is also discussed. The text also presents experiments and studies that focus on the control of the effects of hazardous chemicals on coastal waters. Marine studies and research on coastal waters are discussed, and the trends, methodologies, and recommendations are outlined to support the findings. Sewage treatment and proper disposal methods of hazardous substances on coastal waters are also discussed. Comparisons are then made between conventional sewage treatment processes and new processes. The book is a valuable source of data for scholars and readers who are interested in mitigating the effects of pollution on coastal waters.
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2010-04 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metalloporphyrins Advances in Research and Application 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metalloporphyrins: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Metalloporphyrins. The editors have built Metalloporphyrins: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Metalloporphyrins in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Metalloporphyrins: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book The Algal Bowl written by John R. Vallentyne and published by . This book was released on 1974 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives information about lakes and explains how they are affected by nutrients derived from human activities.
Download or read book Eutrophication in large lakes and impoundments written by and published by . This book was released on 1970 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
