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Author : Eric Servat
Publisher :
ISBN 13 : 9781901502121
Total Pages : 518 pages
Book Rating : 4.5/5 (21 download)
Download or read book Hydrology of Mediterranean and Semiarid Regions written by Eric Servat and published by . This book was released on 2003 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hans Gehrels
Publisher :
ISBN 13 : 9781901502565
Total Pages : 394 pages
Book Rating : 4.5/5 (25 download)
Download or read book Impact of Human Activity on Groundwater Dynamics written by Hans Gehrels and published by . This book was released on 2001 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.:/5 (319 download)
Download or read book IAHS Publication written by and published by . This book was released on 1981 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Holger Treidel
Publisher : CRC Press
ISBN 13 : 0415689368
Total Pages : 422 pages
Book Rating : 4.4/5 (156 download)
Download or read book Climate Change Effects on Groundwater Resources written by Holger Treidel and published by CRC Press. This book was released on 2011-12-02 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is expected to modify the hydrological cycle and affect freshwater resources. Groundwater is a critical source of fresh drinking water for almost half of the world’s population and it also supplies irrigated agriculture. Groundwater is also important in sustaining streams, lakes, wetlands, and associated ecosystems. But despite this, knowledge about the impact of climate change on groundwater quantity and quality is limited. Direct impacts of climate change on natural processes (groundwater recharge, discharge, storage, saltwater intrusion, biogeochemical reactions, chemical fate and transport) may be exacerbated by human activities (indirect impacts). Increased groundwater abstraction, for example, may be needed in areas with unsustainable or contaminated surface water resources caused by droughts and floods. Climate change effects on groundwater resources are, therefore, closely linked to other global change drivers, including population growth, urbanization and land-use change, coupled with other socio-economic and political trends. Groundwater response to global changes is a complex function that depends on climate change and variability, topography, aquifer characteristics, vegetation dynamics, and human activities. This volume contains case studies from diverse aquifer systems, scientific methods, and climatic settings that have been conducted globally under the framework of the UNESCO-IHP project Groundwater Resources Assessment under the Pressures of Humanity and Climate Change (GRAPHIC). This book presents a current and global synthesis of scientific findings and policy recommendations for scientists, water managers and policy makers towards adaptive management of groundwater sustainability under future climate change and variability.
Author : GUILLAUME.. FAVREAU
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (494 download)
Download or read book CARACTERISATION ET MODELISATION D'UNE NAPPE PHREATIQUE EN HAUSSE AU SAHEL written by GUILLAUME.. FAVREAU and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA ZONE D'ETUDE SE SITUE A L'EST DE NIAMEY ET S'ETEND SUR PRES DE 4000 KM 2 DE L'AQUIFERE SABLO-SILTEUX DU CONTINENTAL TERMINAL. DEPUIS PLUS DE 10 ANS, LES SUIVIS PIEZOMETRIQUES MONTRENT UNE HAUSSE CONTINUE DE LA NAPPE PHREATIQUE. L'OBJECTIF DE L'ETUDE EST A LA FOIS D'EXPLIQUER CETTE HAUSSE INTERANNUELLE - D'ORIGINE CLIMATIQUE OU ANTHROPIQUE ? - ET DE QUANTIFIER L'EVOLUTION RECENTE DE LA RECHARGE. DANS CETTE OPTIQUE, PRES DE 150 CHRONIQUES PIEZOMETRIQUES (10000 MESURES) ET UNE CINQUANTAINE D'ECHANTILLONS GEOCHIMIQUES TYPIQUES DE LA NAPPE (IONS MAJEURS, 1 8O, 2H, 3H, 1 4C, 1 3C) SONT CONSIDERES ; A PLUS LONG TERME, UNE CENTAINE DE MESURES PIEZOMETRIQUES DES ANNEES 1950-80 ONT ETE RE-ANALYSEES. LA HAUSSE DE LA NAPPE EST EN MOYENNE DE 0,20 M.AN 1 SUR LA DERNIERE DECENNIE ET TRADUIT UNE RECHARGE D'AU MOINS 10 MM.AN 1. LES NIVEAUX ACTUELS SONT LES PLUS ELEVES JAMAIS MESURES, EN MOYENNE DE 3,5 M PLUS HAUTS QU'EN 1950-60. DEPUIS, DES SECHERESSES MAJEURES SE SONT PRODUITES (1970-80). L'AUGMENTATION DES RESERVES NE PEUT DONC S'EXPLIQUER QUE PAR LE DEBOISEMENT OBSERVE : DANS UN MILIEU ENDOREIQUE OU L'INFILTRATION A LA NAPPE S'EFFECTUE A TRAVERS LE FOND DES VALLEES, LE DEBOISEMENT A PROVOQUE UN ENCROUTEMENT DES SOLS ET UN AFFLUX D'EAU DE RUISSELLEMENT SUPPLEMENTAIRE AUX BAS-FONDS. A LONG TERME, DEUX APPROCHES INDEPENDANTES PERMETTENT DE QUANTIFIER LE RENOUVELLEMENT DE LA NAPPE. LA PREMIERE PROVIENT DE LA MORPHOLOGIE NATURELLE EN DEPRESSION DE LA PIEZOMETRIE, EXPLICABLE PAR UN DEFICIT LOCALISE INFILTRATION-EVAPOTRANSPIRATION ET DONT LA MODELISATION SUGGERE UNE RECHARGE REGIONALE PROCHE DU MM.AN 1. LA DEUXIEME EST DEDUITE DES TENEURS EN 3H ET 1 4C, QUI PERMETTENT D'ESTIMER LA RECHARGE A LONG TERME ENTRE 0,6 ET 5,0 MM.AN 1. DANS CE MILIEU TYPIQUEMENT SAHELIEN, LA RECHARGE DE LA NAPPE A DONC PROGRESSE D'UN FACTEUR 10 (DE 1 A PLUS DE 10 MM.AN 1) EN 4 DECENNIES. UNE TELLE QUANTIFICATION DE L'AUGMENTATION DE LA RECHARGE PROVOQUEE PAR LA DEFORESTATION EST UNE PREMIERE EN AFRIQUE.
Author : International Association of Hydrological Sciences. Scientific Assembly
Publisher :
ISBN 13 : 9781901502053
Total Pages : 546 pages
Book Rating : 4.5/5 (2 download)
Download or read book Sustainability of Water Resources Under Increasing Uncertainty written by International Association of Hydrological Sciences. Scientific Assembly and published by . This book was released on 1997 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Guillaume Favreau
Publisher :
ISBN 13 :
Total Pages : 363 pages
Book Rating : 4.:/5 (49 download)
Download or read book Caractérisation et modélisaton d'une nappe phréatique en hausse au Sahel written by Guillaume Favreau and published by . This book was released on 2000 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA ZONE D'ETUDE SE SITUE A L'EST DE NIAMEY ET S'ETEND SUR PRES DE 4000 KM 2 DE L'AQUIFERE SABLO-SILTEUX DU CONTINENTAL TERMINAL. DEPUIS PLUS DE 10 ANS, LES SUIVIS PIEZOMETRIQUES MONTRENT UNE HAUSSE CONTINUE DE LA NAPPE PHREATIQUE. L'OBJECTIF DE L'ETUDE EST A LA FOIS D'EXPLIQUER CETTE HAUSSE INTERANNUELLE - D'ORIGINE CLIMATIQUE OU ANTHROPIQUE ? - ET DE QUANTIFIER L'EVOLUTION RECENTE DE LA RECHARGE. DANS CETTE OPTIQUE, PRES DE 150 CHRONIQUES PIEZOMETRIQUES (10000 MESURES) ET UNE CINQUANTAINE D'ECHANTILLONS GEOCHIMIQUES TYPIQUES DE LA NAPPE (IONS MAJEURS, 1 8O, 2H, 3H, 1 4C, 1 3C) SONT CONSIDERES ; A PLUS LONG TERME, UNE CENTAINE DE MESURES PIEZOMETRIQUES DES ANNEES 1950-80 ONT ETE RE-ANALYSEES. LA HAUSSE DE LA NAPPE EST EN MOYENNE DE 0,20 M.AN 1 SUR LA DERNIERE DECENNIE ET TRADUIT UNE RECHARGE D'AU MOINS 10 MM.AN 1. LES NIVEAUX ACTUELS SONT LES PLUS ELEVES JAMAIS MESURES, EN MOYENNE DE 3,5 M PLUS HAUTS QU'EN 1950-60. DEPUIS, DES SECHERESSES MAJEURES SE SONT PRODUITES (1970-80). L'AUGMENTATION DES RESERVES NE PEUT DONC S'EXPLIQUER QUE PAR LE DEBOISEMENT OBSERVE : DANS UN MILIEU ENDOREIQUE OU L'INFILTRATION A LA NAPPE S'EFFECTUE A TRAVERS LE FOND DES VALLEES, LE DEBOISEMENT A PROVOQUE UN ENCROUTEMENT DES SOLS ET UN AFFLUX D'EAU DE RUISSELLEMENT SUPPLEMENTAIRE AUX BAS-FONDS. A LONG TERME, DEUX APPROCHES INDEPENDANTES PERMETTENT DE QUANTIFIER LE RENOUVELLEMENT DE LA NAPPE. LA PREMIERE PROVIENT DE LA MORPHOLOGIE NATURELLE EN DEPRESSION DE LA PIEZOMETRIE, EXPLICABLE PAR UN DEFICIT LOCALISE INFILTRATION-EVAPOTRANSPIRATION ET DONT LA MODELISATION SUGGERE UNE RECHARGE REGIONALE PROCHE DU MM.AN 1. LA DEUXIEME EST DEDUITE DES TENEURS EN 3H ET 1 4C, QUI PERMETTENT D'ESTIMER LA RECHARGE A LONG TERME ENTRE 0,6 ET 5,0 MM.AN 1. DANS CE MILIEU TYPIQUEMENT SAHELIEN, LA RECHARGE DE LA NAPPE A DONC PROGRESSE D'UN FACTEUR 10 (DE 1 A PLUS DE 10 MM.AN 1) EN 4 DECENNIES. UNE TELLE QUANTIFICATION DE L'AUGMENTATION DE LA RECHARGE PROVOQUEE PAR LA DEFORESTATION EST UNE PREMIERE EN AFRIQUE.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9789250037271
Total Pages : 352 pages
Book Rating : 4.0/5 (372 download)
Download or read book Irrigation in Africa in Figures written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1995 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leslie Rainer
Publisher : Getty Publications
ISBN 13 : 1606060430
Total Pages : 438 pages
Book Rating : 4.6/5 (6 download)
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Author : Holger Treidel
Publisher : CRC Press
ISBN 13 : 0203120760
Total Pages : 414 pages
Book Rating : 4.2/5 (31 download)
Download or read book Climate Change Effects on Groundwater Resources written by Holger Treidel and published by CRC Press. This book was released on 2011-12-02 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is expected to modify the hydrological cycle and affect freshwater resources. Groundwater is a critical source of fresh drinking water for almost half of the worlds population and it also supplies irrigated agriculture. Groundwater is also important in sustaining streams, lakes, wetlands, and associated ecosystems. But despite this,
Author : Karen Frenken
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251039663
Total Pages : 196 pages
Book Rating : 4.0/5 (396 download)
Download or read book Irrigation Potential in Africa written by Karen Frenken and published by Food & Agriculture Org.. This book was released on 1997 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Habil. Jörg Lewandowski
Publisher : MDPI
ISBN 13 : 3039289055
Total Pages : 438 pages
Book Rating : 4.0/5 (392 download)
Download or read book Groundwater-Surface Water Interactions written by Habil. Jörg Lewandowski and published by MDPI. This book was released on 2020-12-10 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen a paradigm shift in our understanding of groundwater–surface water interactions: surface water and aquifers were long considered discrete, separate entities; they are now understood as integral components of a surface–subsurface continuum. This book provides an overview of current research advances and innovative approaches in groundwater–surface water interactions. The 20 research articles and 1 communication cover a wide range of thematic scopes, scales, and experimental and modelling methods across different disciplines (hydrology, aquatic ecology, biogeochemistry, and environmental pollution). The book identifies current knowledge gaps and reveals the challenges in establishing standardized measurement, observation, and assessment approaches. It includes current hot topcis with environmental and societal relevance such as eutrophication, retention of legacy, and emerging pollutants (e.g., pharmaceuticals and microplastics), urban water interfaces, and climate change impacts. The book demonstrates the relevance of processes at groundwater–surface water interfaces for (1) regional water balances and (2) quality and quantity of drinking water resources. As such, this book represents the long-awaited transfer of the above-mentioned paradigm shift in understanding of groundwater–surface water interactions from science to practice.
Author : Bruno Voituriez
Publisher : UNESCO
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (318 download)
Download or read book El Niño written by Bruno Voituriez and published by UNESCO. This book was released on 2000 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: El Nino, caprice of the heavens, scapegoat for every calamity? The general public cannot really understand what is behind the El Nino phenomenon. The book offers a tour of the Earth's climate to understand one of its normal but extreme components.
Author : R. H. Hughes
Publisher : IUCN
ISBN 13 : 9782880329495
Total Pages : 866 pages
Book Rating : 4.3/5 (294 download)
Download or read book A Directory of African Wetlands written by R. H. Hughes and published by IUCN. This book was released on 1992 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt: A directory of Afrotropical wetlands of international importance. Contents -Region 1: North West Africa, Region 2: North East Africa, Region 3: West Africa, Region 4: Central Africa, Region 5: Southern Africa, Region 6: Madagascar.
Author : François Molle
Publisher : IWMI
ISBN 13 : 1845935381
Total Pages : 325 pages
Book Rating : 4.8/5 (459 download)
Download or read book River Basin Trajectories written by François Molle and published by IWMI. This book was released on 2009 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 11 papers which cover a range of vital topics in the areas of water, agriculture, food security and ecosystems - the entire spectrum of developing and managing water in agriculture, from fully irrigated to fully rainfed lands. They are about people and society, why they decide to adopt certain practices and not others and, in particular, how water management can help poor people. They are about ecosystems - how agriculture affects ecosystems, the goods and services ecosystems provide for food security and how water can be managed to meet both food and environmental security objectives. This is the eighth book in the series.
Author : Gert A. Schultz
Publisher : Springer Science & Business Media
ISBN 13 : 3642595839
Total Pages : 498 pages
Book Rating : 4.6/5 (425 download)
Download or read book Remote Sensing in Hydrology and Water Management written by Gert A. Schultz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides comprehensive information on possible applications of remote sensing data for hydrological monitoring and modelling as well as for water management decisions. Mathematical theory is provided only as far as it is necessary for understanding the underlying principles. The book is especially timely because of new programs and sensors that are or will be realised. ESA, NASA, NASDA as well as the Indian and the Brazilian Space Agency have recently launched satellites or developed plans for new sensor systems that will be especially pertinent to hydrology and water management. New techniques are presented whose structure differ from conventional hydrological models due to the nature of remotely sensed data.
Author : International Livestock Research Institute
Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 : 9789291460038
Total Pages : 268 pages
Book Rating : 4.4/5 (6 download)
Download or read book Livestock Policy Analysis written by International Livestock Research Institute and published by ILRI (aka ILCA and ILRAD). This book was released on 1995-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Policy concepts; Identification of policy issues; Production systems, supply and demand; Market, price and trade policies; Marketing and distribution systems; Budget and manpower planning; Land tenure police for the livestock sector; Policy analysis report writing and communication; Livestock production and marketing in alphabeta - a case study.
