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Influence Des Flux Deau Souterraine Entre Une Zone Humide Superficielle Et Un Aquifere Profond Sur Le Fonctionnement Hydrochimique Des Tourbieres
Download Influence Des Flux Deau Souterraine Entre Une Zone Humide Superficielle Et Un Aquifere Profond Sur Le Fonctionnement Hydrochimique Des Tourbieres full books in PDF, epub, and Kindle. Read online Influence Des Flux Deau Souterraine Entre Une Zone Humide Superficielle Et Un Aquifere Profond Sur Le Fonctionnement Hydrochimique Des Tourbieres ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Trace Elements in Waterlogged Soils and Sediments by : Jörg Rinklebe
Download or read book Trace Elements in Waterlogged Soils and Sediments written by Jörg Rinklebe and published by CRC Press. This book was released on 2016-08-19 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many wetlands around the world act as sinks for pollutants, in particular for trace elements. In comparison to terrestrial environments, wetlands are still far less studied. A collaborative effort among world experts, this book brings the current knowledge concerning trace elements in temporary waterlogged soils and sediments together. It discusses factors controlling the dynamics and release kinetics of trace elements and their underlying biogeochemical processes. It also discusses current technologies for remediating sites contaminated with trace metals, and the role of bioavailability in risk assessment and regulatory decision making. This book is intended for professionals around the world in disciplines related to contaminant bioavailability in aquatic organisms, contaminant fate and transport, remediation technologies, and risk assessment of aquatic and wetland ecosystems.
Download or read book Flora Europaea written by T. G. Tutin and published by Cambridge University Press. This book was released on 1964 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the synthesis of the national and regional Floras of Europe and the fifth and final volume covers the Monocotyledons.
Book Synopsis Med-checklist: Dicotyledones (Lauraceae-Rhamnaceae) by : W. Greuter
Download or read book Med-checklist: Dicotyledones (Lauraceae-Rhamnaceae) written by W. Greuter and published by . This book was released on 1984 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :International Union for Conservation of Nature and Natural Resources. Commission on Environmental Law Publisher :IUCN ISBN 13 :9782831705248 Total Pages :226 pages Book Rating :4.7/5 (52 download)
Book Synopsis Draft International Covenant on Environment and Development by : International Union for Conservation of Nature and Natural Resources. Commission on Environmental Law
Download or read book Draft International Covenant on Environment and Development written by International Union for Conservation of Nature and Natural Resources. Commission on Environmental Law and published by IUCN. This book was released on 2000 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an updated edition of the 1995 version. In the mid-1980's, the IUCN CEL, in consultation with leading experts from around the world, began to respond to a need later identified by Agenda 21: the preparation of an integrated framework for international environmental law.
Book Synopsis Radiocarbon After Four Decades by : Ervin Taylor
Download or read book Radiocarbon After Four Decades written by Ervin Taylor and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiocarbon After Four Decades: An Interdisciplinary Perspective commemorates the 40th anniversary of radiocarbon dating. The volume presents discussions of every aspect of this dating technique, as well as chronicles of its development and views of future advancements and applications. All of the 64 authors played major roles in establishment, development or application of this revolutionary scientific tool. The 35 chapters provide a solid foundation in the essential topics of radiocarbon dating: Historical Perspectives; The Natural Carbon Cycle; Instrumentation and Sample Preparation; Hydrology; Old World Archaeology; New World Archaeology; Earth Sciences; and Biomedical Applications.
Book Synopsis Application of Tracers in Arid Zone Hydrology by : Eilon M. Adar
Download or read book Application of Tracers in Arid Zone Hydrology written by Eilon M. Adar and published by . This book was released on 1995 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Réponse des processus biochimiques d'une tourbière soumise à des fluctuations du niveau d'eau by : Jo De Ridder
Download or read book Réponse des processus biochimiques d'une tourbière soumise à des fluctuations du niveau d'eau written by Jo De Ridder and published by . This book was released on 2012 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands are recognized to play an important role in regulating global biogeochemical cycles. Actually they serve as sinks, sources and transformers of nutrients. They are very sensitive to changes in hydrology that may be brought about by climate or anthropogenic pressures. Negative impacts affect both the physical structure of the peat and the water quality. The work presented here applies an interdisciplinary approach by combining hydrology, geophysics, hydrochemistry, biology and numerical modelisation. The investigated site is a peatland meadow located in Normandy, NW France. Are presented : 1) a hydrological study including the impact of increasing water extraction in the underlying aquifer and climate change 2) the involved biochemical processes in the peatland, in response to repeated wettings and drainings 3) how these processes are altered by environmental changes (desiccation and water quality recharge). A first approach by groundwater dating, combined to chemical characterization, enabled to gain knowledge on the aquifer conceptual functioning. The mean water residence time is of about 55 years and aquifer vulnerability to pollution is evidenced. Finally, the modelisation highlights the interactions between the wetland and the aquifer and predicts an important impact of groundwater extraction and climate change on the wetland water levels that may lead to desiccation and on the stream flows. The study confirms that peat biochemical vulnerability is highly dependant on the peat quality. A more degraded peat, i.e. with lower nutrient and biomass content, is more sensitive to oxidation processes, which results in important acidification and sulphate and cations leaching. Desiccation increases these processes and is clearly destructive. The results confirm that, while anaerobic conditions must be favoured in peatland management, regular small water table fluctuations do not disturb the peat functioning, as a nutrient transformer.
Book Synopsis Geology & Geomorphology by : David Ambrose
Download or read book Geology & Geomorphology written by David Ambrose and published by . This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Cynthia Carrier Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612889088 Total Pages :424 pages Book Rating :4.8/5 (89 download)
Book Synopsis Étude de l'interaction entre le système d'écoulement local d'une tourbière ombrotrophe et le système d'écoulement des eaux souterraines régionales dans le sud-est du Nouveau-Brunswick [microforme] : caractérisation et modélisation hydrogéologiques by : Cynthia Carrier
Download or read book Étude de l'interaction entre le système d'écoulement local d'une tourbière ombrotrophe et le système d'écoulement des eaux souterraines régionales dans le sud-est du Nouveau-Brunswick [microforme] : caractérisation et modélisation hydrogéologiques written by Cynthia Carrier and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2003 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'étude de l'interaction entre le système d'écoulement local d'une tourbière ombrotrophe et le système d'écoulement des eaux souterraines régionales a été menée à Grand-Barachois, dans le sud-est du Nouveau-Brunswick. Le but de l'étude consiste essentiellement à estimer l'impact du drainage des tourbières commerciales sur les ressources en eau souterraine. Ce projet s'intègre dans l'Initiative sur les Eaux Souterraines dans les Maritimes qui est menée par la Commission géologique du Canada et qui vise à réaliser la caractérisation hydrogéologique régionale du bassin carbonifère dans le sud-est du Nouveau-Brunswick. Deux campagnes de terrain réalisées en 2001 et 2002 ont permis de recueillir plusieurs données de terrain pour faire la caractérisation hydrogéologique de la tourbière Beauséjour (46° 11' N, 64°27'W) et de l'aquifère rocheux régional dans la région de Shediac. La tourbière Beauséjour est apparentée à une nappe perchée et représente un système hydrogéologique indépendant du système régional, ce dernier étant caractérisé par une nappe semi-confinée. Plusieurs évidences appuient cette hypothèse: (1) le niveau piézométrique de la tourbière est toujours plus élevé d’au moins 1,5 m que le niveau de l’aquifère régional, (2) la différence de conductivité hydraulique entre la tourbe et le till sous la tourbière (l,8E-06 m/s vs 4,4E-09 m/s) représente une limite quasi imperméable à l’écoulement vertical entre la tourbière et l’aquifère régional sous-jacent, (3) les fluctuations piézométriques dans l’aquitard, représenté par le till, accusent un décalage d’environ deux mois par rapport aux fluctuations piézométriques dans la tourbe et dans le socle rocheux, (4) l’hydrogéochimie permet de distinguer la présence de deux nappes d’eau souterraine aux propriétés physiques et chimiques différentes et finalement, (5) la recharge potentielle estimée de 1,2 cm/an provenant de la tourbière et pouvant atteindre le sommet du socle rocheux implique des échanges hydrauliques limités et relativement peu importants par rapport à la recharge régionale qui se fait par le till de surface et qui est de 10,1 à 30 cm/an (Boisvert, 2003). La présence de la tourbière Beauséjour est donc attribuée à la présence du till relativement imperméable et à la morphologie du fond de la tourbière et non à la résurgence des eaux souterraines régionales, qui aurait pu expliquer le développement de la tourbière à cet endroit et impliquer la présence d’une unité sous-jacente perméable par laquelle des échanges hydrologiques auraient pu se faire. Les résultats de la modélisation numérique ont montré que l'abaissement provoqué des niveaux d'eau dans la tourbière a très peu d'influence sur les niveaux d'eau dans le socle rocheux à 50, 100 et 1000 m à l'extérieur de la tourbière ainsi que sur l'écoulement vertical entre la base de la tourbière et le sommet de l'aquifère rocheux régional. Les données de terrain ainsi que la modélisation numérique indiquent que, dans la région de Shediac, l'impact du drainage des tourbières commerciales sur les ressources en eau souterraine est très limité, voire négligeable.
Book Synopsis Payments for Ecosystem Services by : Thomas Greiber
Download or read book Payments for Ecosystem Services written by Thomas Greiber and published by IUCN. This book was released on 2009 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Governance by : Asanga Gunawansa
Download or read book Water Governance written by Asanga Gunawansa and published by Edward Elgar Publishing. This book was released on 2013-01-01 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: ÔEnsuring that everybody has access to drinking water, sanitation and enough nutritious food, which depends on water to grow it, are prerequisites for a healthy life. Water management is not just about the technical aspects of water supply and sanitation. It is equally about our water governance systems, including policies, regulation and societal perception of water rights. This book presents many helpful examples of how different societies are dealing with these issues and of the performance of public and private sector players in this important arena.Õ Ð Colin Chartres, International Water Management Institute (IWMI), Colombo, Sri Lanka ÔI congratulate the Institute of Water Policy, the two editors and the contributors for a very thoughtful book on urban water governance. Our objective is to deliver sustainable water and sanitation services to our people. This book contains useful lessons on how to achieve that objective.Õ Ð Tommy Koh, Chairman, Governing Council, Asia-Pacific Water Forum This insightful book explores urban water governance challenges in different parts of the world and highlights the advantages and disadvantages of publicly run, privatized, and publicÐprivate partnership managed water facilities. The contributors expertly discuss various types of public and private water governance architectures as well as identifying the trends, challenges, opportunities and the shifts in perceptions with regard to the provision of water supply services. Many chapters are dedicated to analyzing the urban water supply scenarios in selected countries, with specific focus on legal, policy and institutional frameworks. The study reveals that while private sector participation has been largely promoted by multilateral institutions as part of institutional and financial reforms, ultimately governments bear the major responsibility for provision of water supply services either as Ôservice providerÕ or as Ôregulator and policy-makerÕ. Containing a detailed overview and analysis of the global urban water supply sector, this timely compendium will strongly appeal to academics, researchers and university students following water-related courses. Water sector professionals, water regulators and public officers as well as managers and researchers employed by private sector water operators will also find plenty of invaluable information in this important book.
Book Synopsis Hydrogéologie appliquée by : Alain Dassargues
Download or read book Hydrogéologie appliquée written by Alain Dassargues and published by Dunod. This book was released on 2020-09-16 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'hydrogéologie est l'étude des eaux souterraines. Il s'agit d'une discipline critique à l'heure où des inondations d'importance se multiplient à la surface du globe, et où l'estimation des ressources mondiales en eau devient un sujet non seulement environnemental, mais aussi géopolitique. Cet ouvrage détaille la description et les caractéristiques des processus hydrogéologiques. Il fournit notamment les équations permettant de calculer les écoulements d'eaux souterraines ainsi que le transport des solutés et de la chaleur en milieux totalement ou partiellement saturés. Il propose enfin une méthodologie pour la modélisation de ces processus à des fins de prévisions spatiales et temporelles.
Book Synopsis Hydrogéologie du milieu volcanique by : Christian Bouchet
Download or read book Hydrogéologie du milieu volcanique written by Christian Bouchet and published by . This book was released on 1987 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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