Soil Physics with HYDRUS: Modeling and Applications, 1st Edition (Hardback) book cover

Soil Physics with HYDRUS

Modeling and Applications, 1st Edition

By David E. Radcliffe, Jiri Simunek

CRC Press

388 pages | 260 B/W Illus.

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Hardback: 9781420073805
pub: 2010-05-21
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pub: 2018-10-03
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Description

Numerical models have become much more efficient, making their application to problems increasingly widespread. User-friendly interfaces make the setup of a model much easier and more intuitive while increased computer speed can solve difficult problems in a matter of minutes. Co-authored by the software’s creator, Dr. Jirka Šimůnek, Soil Physics with HYDRUS: Modeling and Applications demonstrates one- and two-dimensional simulations and computer animations of numerical models using the HYDRUS software.

Classroom-tested at the University of Georgia by Dr. David Radcliffe, this volume includes numerous examples and homework problems. It provides students with access to the HYDRUS-1D program as well as the Rosetta Module, which contains large volumes of information on the hydraulic properties of soils. The authors use HYDRUS-1D for problems that demonstrate infiltration, evaporation, and percolation of water through soils of different textures and layered soils. They also use it to show heat flow and solute transport in these systems, including the effect of physical and chemical nonequilibrium conditions. The book includes examples of two-dimensional flow in fields, hillslopes, boreholes, and capillary fringes using HYDRUS (2D/3D). It demonstrates the use of two other software packages, RETC and STANMOD, that complement the HYDRUS series.

Hands-on use of the windows-based codes has proven extremely effective when learning the principles of water and solute movement, even for users with very little direct knowledge of soil physics and related disciplines and with limited mathematical expertise. Suitable for teaching an undergraduate or lower level graduate course in soil physics or vadose zone hydrology, the text can also be used for self-study on how to use the HYDRUS models. With the information in this book, you can run models for different scenarios and with different parameters, and thus gain a better understanding of the physics of water flow and contaminant transport.

Table of Contents

Soil Solid Phase

Introduction

Soil Phases

Soil Texture

Soil Mineralogy

Soil Structure

Summary

Derivations

Problems

Soil Water Content and Potential

Introduction

Energy and Work

Properties of Bulk Water

Properties of Water at Air and Solid Interfaces

Soil Water Content

Measuring Soil Water Content

Soil Water Potential

Measuring Soil Water Potential Components

The Soil Water Retention Curve

RETC Program

Summary

Derivations

Problems

Steady Water Flow in Soils

Introduction

Steady Flow in Saturated Soil

Steady Flow in Unsaturated Soil

Measurements of Hydraulic Properties

Summary

Derivations

Heat Flow in Soils

Introduction

Surface Energy Balance

Steady Soil Heat Flux

Transient Soil Heat Flux

Soil Heat Flow with Hydrus-1d

Summary

Derivations

Problems

Transient Water Flow in Soils

Introduction

Transient Water Flow

Numerical Solutions to the Richards Equation

Infiltration

Redistribution

Evaporation

Transpiration

Preferential Flow

Groundwater Recharge and Discharge

Inverse Solutions and Parameter Optimization

Summary

Derivations

Problems

Solute Transport

Introduction

Conservation and Flux Equations

Advection Dispersion Equation

Stanmodand Cxtfit

Numerical Approaches for Solute Transport

HydrusExamples of Solute Transport

Summary

Derivations

Problems

Appendix

References

Index

Subject Categories

BISAC Subject Codes/Headings:
SCI077000
SCIENCE / Solid State Physics