Author: D. S. WardPublisher:
ISBN:
Category : Soil moisture
Languages : en
Pages : 46
Book Description
Calculation of in Situ Unsaturated Hydraulic Conductivity from Instantaneous Soil-water Profile Data
Author: D. S. WardPublisher:
ISBN:
Category : Soil moisture
Languages : en
Pages : 46
Book Description
Calculation of in Situ Unsaturated Hydraulic Conductivity from Instantaneous Soil-water Profile Data
Author: D. S. WardPublisher:
ISBN:
Category : Soil moisture
Languages : en
Pages : 27
Book Description
Evaluation of Methods for Determining Soil-water Retentivity and Unsaturated Hydraulic Conductivity
Author: John M. MarionSelected Water Resources Abstracts
Author: Energy Research Abstracts
Author: Soil Hydraulic Conductivity on Two Tropical Soil Types Under Forest and a 25 Year Old Pasture
Author: G.J. WeertsPublisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 150
Book Description
Vadose Zone Hydrology
Author: Daniel B. StephensPublisher: CRC Press
ISBN: 1351405799
Category : Science
Languages : en
Pages : 372
Book Description
Vadose Zone Hydrology describes the elements of the physical processes most often encountered by hydrogeologists and ground-water engineers in their vadose zone projects. It illustrates the application of soil physics to practical problems relevant to the characterization and monitoring of the vadose zone. It includes an introduction to physical processes, including basic flow theory, and provides examples of important field-scale processes that must be recognizable by hydrogeologists. Considerable attention is given to the concepts of recharge, including how it is most accurately evaluated in the vadose zone. Field and laboratory methods for characterizing hydraulic properties in the vadose zone are also covered, and case studies illustrating these methods are provided. New and emerging technologies for monitoring the vadose zone, particularly for the purpose of detecting contaminants, are highlighted. In the last section of the book, additional case studies are presented, demonstrating applications related to seepage detection, landfill monitoring, and soil gas investigations. This book is written from the perspective of hydrogeologists and is designed to be directly applicable and to maintain continuity and consistency between chapters. It will be an invaluable primer for environmental or geotechnical consultants, regulators, or students who have no prior formal academic training in unsaturated flow concepts. Because the text contains some of the latest advances in this field, it will be an excellent reference for geologists and engineers currently working on problems of vadose zone hydrology.
Soil and Environmental Analysis
Author: Keith A. SmithPublisher: CRC Press
ISBN: 9780203908600
Category : Science
Languages : en
Pages : 664
Book Description
Reviews a wide range of methods for soil physical analysis. Considers applications, accuracy, measurement time, and cost of equipment. Provides examples of applications.
Selected Water Resources Abstracts
Author: Hydraulic Conductivity Assessment of Unsaturated Soils
Author: DB. StephensPublisher:
ISBN:
Category : Seepage
Languages : en
Pages : 15
Book Description
Predicting the direction and rate of contaminant transport in the vadose zone requires quantification of soil hydraulic properties. For many problems, the most appropriate approach is to assume that the contamination is moving with the water phase. Therefore, the unsaturated hydraulic conductivity is the most important property governing water movement in soils. There is a wide variety of methods to determine this important property including in situ methods (e.g., instantaneous profile method, crust method), laboratory methods (e.g., one-step outflow, pressure plate, long column methods), and calculations from other data (e.g., Brooks and Corey, van Genuchten models). In this paper we present a summary and brief critique of the current methods for determining unsaturated hydraulic conductivity.