Preferential Flow

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Conceptual Models of Flow and Transport in the Fractured Vadose Zone

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309170990
Total Pages : 398 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Conceptual Models of Flow and Transport in the Fractured Vadose Zone by : National Research Council

Download or read book Conceptual Models of Flow and Transport in the Fractured Vadose Zone written by National Research Council and published by National Academies Press. This book was released on 2001-05-21 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid flow and solute transport within the vadose zone, the unsaturated zone between the land surface and the water table, can be the cause of expanded plumes arising from localized contaminant sources. An understanding of vadose zone processes is, therefore, an essential prerequisite for cost-effective contaminant remediation efforts. In addition, because such features are potential avenues for rapid transport of chemicals from contamination sources to the water table, the presence of fractures and other channel-like openings in the vadose zone poses a particularly significant problem, Conceptual Models of Flow and Transport in the Fractured Vadose Zone is based on the work of a panel established under the auspices of the U.S. National Committee for Rock Mechanics. It emphasizes the importance of conceptual models and goes on to review the conceptual model development, testing, and refinement processes. The book examines fluid flow and transport mechanisms, noting the difficulty of modeling solute transport, and identifies geochemical and environmental tracer data as important components of the modeling process. Finally, the book recommends several areas for continued research.

Hydropedology

Author : Henry Lin
Publisher : Academic Press
ISBN 13 : 0123869870
Total Pages : 859 pages
Book Rating : 4.1/5 (238 download)

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Book Synopsis Hydropedology by : Henry Lin

Download or read book Hydropedology written by Henry Lin and published by Academic Press. This book was released on 2012-07-09 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydropedology is a microcosm for what is happening in Soil Science. Once a staid discipline found in schools of agriculture devoted to increasing crop yield, soil science is transforming itself into an interdisciplinary mulch with great significance not only for food production but also climate change, ecology, preservation of natural resources, forestry, and carbon sequestration. Hydropedology brings together pedology (soil characteristics) with hydrology (movement of water) to understand and achieve the goals now associated with modern soil science. - The first book of its kind in the market - Highly interdisciplinary, involving new thinking and synergistic approaches - Stimulating case studies demonstrate the need for hydropedology in various practical applications - Future directions and new approaches are present to advance this emerging interdisciplinary science

Percolation Theory for Flow in Porous Media

Author : Allen Hunt
Publisher : Springer Science & Business Media
ISBN 13 : 3540897895
Total Pages : 334 pages
Book Rating : 4.5/5 (48 download)

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Book Synopsis Percolation Theory for Flow in Porous Media by : Allen Hunt

Download or read book Percolation Theory for Flow in Porous Media written by Allen Hunt and published by Springer Science & Business Media. This book was released on 2009-05-05 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why would we wish to start a 2nd edition of “Percolation theory for ?ow in porous media” only two years after the ?rst one was ?nished? There are essentially three reasons: 1) Reviews in the soil physics community have pointed out that the introductory material on percolation theory could have been more accessible. Our additional experience in teaching this material led us to believe that we could improve this aspect of the book. In the context of rewriting the ?rst chapter, however, we also expanded the discussion of Bethe lattices and their relevance for “classical” - ponents of percolation theory, thus giving more of a basis for the discussion of the relevance of hyperscaling. This addition, though it will not tend to make the book more accessible to hydrologists, was useful in making it a more complete reference, and these sections have been marked as being possible to omit in a ?rst reading. It also forced a division of the ?rst chapter into two. We hope that physicists without a background in percolation theory will now also ?nd the - troductory material somewhat more satisfactory. 2) We have done considerable further work on problems of electrical conductivity, thermal conductivity, and electromechanical coupling.

Water Flow In Soils

Author : Tsuyoshi Miyazaki
Publisher : CRC Press
ISBN 13 : 1420030132
Total Pages : 440 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Water Flow In Soils by : Tsuyoshi Miyazaki

Download or read book Water Flow In Soils written by Tsuyoshi Miyazaki and published by CRC Press. This book was released on 2005-07-28 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of a bestseller, Water Flow in Soils bridges the fields of soil physics-where descriptions of water flow tend to be microscopic- and hydrology - where they tend to be macroscopic. Unlike other physics laden texts, this work conveys the fundamental concepts of water flow in soils with clear and essentially nonmathematical explanation

Tracer Hydrology 97

Author : A. Kranjc
Publisher : CRC Press
ISBN 13 : 100010012X
Total Pages : 465 pages
Book Rating : 4.0/5 (1 download)

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Book Synopsis Tracer Hydrology 97 by : A. Kranjc

Download or read book Tracer Hydrology 97 written by A. Kranjc and published by CRC Press. This book was released on 2020-08-26 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of papers is the proceedings of the 7th International Synosium on Water Tracing in Portoroz/Slovenia from 26-31 May 1997. They address a number of topics in hydrology tracing techniques including: protection of natural resources against pollution; the use of natural and artificial tracers to help to assess contaminant transport in surface waters; and aquifer parameters and modelling.

Preferential Flow in Water-repellent Sandy Soils

Author : Gerrit H. de Rooij
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Preferential Flow in Water-repellent Sandy Soils by : Gerrit H. de Rooij

Download or read book Preferential Flow in Water-repellent Sandy Soils written by Gerrit H. de Rooij and published by . This book was released on 1996* with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cum laude graduation (with distinction).

The Self-Potential Method

Author : André Revil
Publisher : Cambridge University Press
ISBN 13 : 1107244714
Total Pages : 385 pages
Book Rating : 4.1/5 (72 download)

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Book Synopsis The Self-Potential Method by : André Revil

Download or read book The Self-Potential Method written by André Revil and published by Cambridge University Press. This book was released on 2013-07-11 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The self-potential method enables non-intrusive assessment and imaging of disturbances in electrical currents of conductive subsurface materials. It has an increasing number of applications, from mapping fluid flow in the subsurface of the Earth to detecting preferential flow paths in earth dams and embankments. This book provides the first full overview of the fundamental concepts of this method and its applications in the field. It discusses the historical perspective, laboratory investigations undertaken, the inverse problem and seismoelectric coupling, and concludes with the application of the self-potential method to geohazards, water resources and hydrothermal systems. Chapter exercises, online datasets and analytical software enable the reader to put the theory into practice. This book is a key reference for academic researchers and professionals working in the areas of geophysics, environmental science, hydrology and geotechnical engineering. It will also be valuable reading for related graduate courses.

Soil and Groundwater Remediation Technologies

Author : Yong Sik Ok
Publisher : CRC Press
ISBN 13 : 1000046826
Total Pages : 351 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Soil and Groundwater Remediation Technologies by : Yong Sik Ok

Download or read book Soil and Groundwater Remediation Technologies written by Yong Sik Ok and published by CRC Press. This book was released on 2020-03-23 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers various soil and water treatment technologies due to increasing global soil and water pollution. In many countries, the management of contaminated land has matured, and it is developing in many others. Topics covered include chemical and ecological risk assessment of contaminated sites; phytomanagement of contaminants; arsenic removal; selection and technology diffusion; technologies and socio-environmental management; post-remediation long-term management; soil and groundwater laws and regulations; and trace element regulation limits in soil. Future prospects of soil and groundwater remediation are critically discussed in this book. Hence, readers will learn to understand the future prospects of soil and groundwater contaminants and remediation measures. Key Features: Discusses conventional and novel aspects of soil and groundwater remediation technologies Includes new monitoring/sensing technologies for soil and groundwater pollution Features a case study of remediation of contaminated sites in the old, industrial, Ruhr area in Germany Highlights soil washing, soil flushing, and stabilization/solidification Presents information on emerging contaminants that exhibit new challenges This book is designed for undergraduate and graduate courses and can be used as a handbook for researchers, policy makers, and local governmental institutes. Soil and Groundwater Remediation Technologies: A Practical Guide is written by a team of leading global experts in the field.

Biogeochemistry of Trace Elements in the Rhizosphere

Author : G.R. Gobran
Publisher : Elsevier
ISBN 13 : 0080457673
Total Pages : 481 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Biogeochemistry of Trace Elements in the Rhizosphere by : G.R. Gobran

Download or read book Biogeochemistry of Trace Elements in the Rhizosphere written by G.R. Gobran and published by Elsevier. This book was released on 2011-08-11 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rhizosphere in soil environments refers to the narrow zone of soil influenced by the root and exudates. Microbial populations in the rhizosphere can be 10 - 100 times larger than the populations in the bulk soil. Therefore, the rhizosphere is bathed in root exudates and microbial metabolites and the chemistry and biology at the soil-root interface is governed by biotic (plant roots, microbes) and abiotic (physical and chemical) interactions. The research on biotic and abiotic interactions in the rhizosphere should, thus, be an issue of intense interest for years to come. This book, which consists of 15 chapters, addresses a variety of issues on fundamentals of microscopic levels and the impact on food chain contamination and the terrestrial ecosystem. It is an essential reference work for chemists and biologists studying environmental systems, as well as earth, soil and environmental scientists.* 15 chapter book, which addresses a variety of issues on fundamentals of microscopic levels and the impact on food chain contamination and the terrestrial ecosystem

Principles of Soil and Plant Water Relations

Author : M.B. Kirkham
Publisher : Academic Press
ISBN 13 : 0124200788
Total Pages : 599 pages
Book Rating : 4.1/5 (242 download)

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Book Synopsis Principles of Soil and Plant Water Relations by : M.B. Kirkham

Download or read book Principles of Soil and Plant Water Relations written by M.B. Kirkham and published by Academic Press. This book was released on 2014-04-21 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Soil and Plant Water Relations, 2e describes the principles of water relations within soils, followed by the uptake of water and its subsequent movement throughout and from the plant body. This is presented as a progressive series of physical and biological interrelations, even though each topic is treated in detail on its own. The book also describes equipment used to measure water in the soil-plant-atmosphere system. At the end of each chapter is a biography of a scientist whose principles are discussed in the chapter. In addition to new information on the concept of celestial time, this new edition also includes new chapters on methods to determine sap flow in plants dual-probe heat-pulse technique to monitor water in the root zone. - Provides the necessary understanding to address advancing problems in water availability for meeting ecological requirements at local, regional and global scales - Covers plant anatomy: an essential component to understanding soil and plant water relations

On Preferential Flow and Its Measurement

Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis On Preferential Flow and Its Measurement by :

Download or read book On Preferential Flow and Its Measurement written by and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preferential flow is a useful generic term for describing the process whereby water movement through a porous medium follows favored routes bypassing other parts of the medium. This term does not give any indication of the pore scales involved. Sometimes macropore flow is used to describe preferential flow and this term implies that large pores of some sort are conductive. There is no consensus definition of what constitutes a macropore so one needs to carefully determine what is meant when that term is used. The main focus of this report is on the measurement and characterization of preferential flow through structured soils, however, preferred path flow also occurs in sandy soils. Fingering flow in soils, a result of wetting front instability, is a third type of preferential flow that occurs in porous media with more or less random pore arrangement. There may not be any physically defined channels in the soil to account for this type of flow. A larger scale flow described as funnel flow by Kung et al. (1990) results from profile heterogeneity. Low permeability layers or coarse lenses in a profile may restrict vertical drainage redirecting flow laterally through specific regions of the profile (like a funnel). Water repellency can also be a factor in the development of preferential flow. 34 refs.

Fluid Dynamics in Complex Fractured-Porous Systems

Author : Boris Faybishenko
Publisher : John Wiley & Sons
ISBN 13 : 1118877209
Total Pages : 262 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis Fluid Dynamics in Complex Fractured-Porous Systems by : Boris Faybishenko

Download or read book Fluid Dynamics in Complex Fractured-Porous Systems written by Boris Faybishenko and published by John Wiley & Sons. This book was released on 2015-07-07 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite of many years of studies, predicting fluid flow, heat, and chemical transport in fractured-porous media remains a challenge for scientists and engineers worldwide. This monograph is the third in a series on the dynamics of fluids and transport in fractured rock published by the American Geophysical Union (Geophysical Monograph Series, Vol. 162, 2005; and Geophysical Monograph, No. 122, 2000). This monograph is dedicated to the late Dr. Paul Witherspoon for his seminal influence on the development of ideas and methodologies and the birth of contemporary fractured rock hydrogeology, including such fundamental and applied problems as environmental remediation; exploitation of oil, gas, and geothermal resources; disposal of spent nuclear fuel; and geotechnical engineering. This monograph addresses fundamental and applied scientific questions and is intended to assist scientists and practitioners bridge gaps in the current scientific knowledge in the areas of theoretical fluids dynamics, field measurements, and experiments for different practical applications. Readers of this book will include researchers, engineers, and professionals within academia, Federal agencies, and industry, as well as graduate/undergraduate students involved in theoretical, experimental, and numerical modeling studies of fluid dynamics and reactive chemical transport in the unsaturated and saturated zones, including studies pertaining to petroleum and geothermal reservoirs, environmental management and remediation, mining, gas storage, and radioactive waste isolation in underground repositories. Volume highlights include discussions of the following: Fundamentals of using a complex systems approach to describe flow and transport in fractured-porous media. Methods of Field Measurements and Experiments Collective behavior and emergent properties of complex fractured rock systems Connection to the surrounding environment Multi-disciplinary research for different applications

Environmental Soil Physics

Author : Daniel Hillel
Publisher : Elsevier
ISBN 13 : 0080544150
Total Pages : 801 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Environmental Soil Physics by : Daniel Hillel

Download or read book Environmental Soil Physics written by Daniel Hillel and published by Elsevier. This book was released on 1998-09-09 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Soil Physics is a completely updated and modified edition of the Daniel Hillels previous, successful books, Introduction to Soil Physics and Fundamentals of Soil Physics. Hillel is a Pulitzer Prize-winning author, one of the true leaders in the field of environmental sciences. The new version includes a chapter and problems on computational techniques, addresses current environmental concerns and trends. - Updates and expands the scope of Hillel's prior works, Fundamentals of Soil Physics (1980)and Applications of Soil Physics (1980) - Explores the wide range of interactions among the phases in the soil and the dynamic interconnections of the soil with the subterranean and atmospheric domains - Draws attention to historical and contemporary issues concerning the human management of soil and water resources - Directs readers toward solution of practical problems in terrestrial ecology, field-scale hydrology, agronomy, and civil engineering - Incorporates contributions by leading scientists in the areas of spatial variability, soil remediation, and the inclusion of land-surface processes in global climate models

Vadose Zone Hydrology

Author : Marc B. Parlange
Publisher : Oxford University Press
ISBN 13 : 0198026994
Total Pages : 473 pages
Book Rating : 4.1/5 (98 download)

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Book Synopsis Vadose Zone Hydrology by : Marc B. Parlange

Download or read book Vadose Zone Hydrology written by Marc B. Parlange and published by Oxford University Press. This book was released on 1999-08-05 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vadose zone is the region between ground level and the upper limits of soil fully saturated with water. Hydrology in the zone is complex: nonlinear physical, chemical, and biological interactions all affect the transfer of heat, mass, and momentum between the atmosphere and the water table. This book takes an interdisciplinary approach to vadose zone hydrology, bringing together insights from soil science, hydrology, biology, chemistry, physics, and instrumentation design. The chapters present state-of-the-art research, focusing on new frontiers in theory, experiment, and management of soils. The collection addresses the full range of processes, from the pore-scale to field and landscape scales.

The Handbook of Groundwater Engineering

Author : Jacques W. Delleur
Publisher : CRC Press
ISBN 13 : 1420006002
Total Pages : 1342 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis The Handbook of Groundwater Engineering by : Jacques W. Delleur

Download or read book The Handbook of Groundwater Engineering written by Jacques W. Delleur and published by CRC Press. This book was released on 2006-11-16 with total page 1342 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete treatment of the theory and practice of groundwater engineering, The Handbook of Groundwater Engineering, Second Edition provides a current and detailed review of how to model the flow of water and the transport of contaminants both in the unsaturated and saturated zones, covers the production of groundwater and the remediation of contaminated groundwater.

Issues in Agricultural Research: 2013 Edition

Author :
Publisher : ScholarlyEditions
ISBN 13 : 1490108424
Total Pages : 670 pages
Book Rating : 4.4/5 (91 download)

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Book Synopsis Issues in Agricultural Research: 2013 Edition by :

Download or read book Issues in Agricultural Research: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Agricultural Research / 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Phillipines and Agriculture. The editors have built Issues in Agricultural Research: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Phillipines and Agriculture in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Agricultural Research: 2013 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/.

Groundwater 2000

Author : Poul L. Bjerg
Publisher : CRC Press
ISBN 13 : 1000151026
Total Pages : 552 pages
Book Rating : 4.0/5 (1 download)

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Book Synopsis Groundwater 2000 by : Poul L. Bjerg

Download or read book Groundwater 2000 written by Poul L. Bjerg and published by CRC Press. This book was released on 2020-08-18 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings, with cd-rom, present a comprehensive overview of advances in groundwater research. The five main topics covered are: aquifers and contaminant distribution; groundwater quality; natural attenuation; remediation technologies and groundwater protection. Groundwater 2000 is a useful resource to both scientists and to those working in the field.