Soil Physical Methods for Estimating Recharge - Part 3 ( Basics of Recharge and Discharge Series )

Publication series ：Basics of Recharge and Discharge Series

Author： Bond W

Publisher： CSIRO PUBLISHING‎

Publication year： 1998

E-ISBN: 9780643105355

P-ISBN(Paperback): 9780643062832

Subject： S152 soil physics

Keyword：建筑科学,地球物理学

Language： ENG

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Description

Measurements in and just below the plant root zone, using principles of soil physics, can be used to estimate recharge.

Chapter

Cover

Title

Contents

1 Introduction and Scope

2 Basic Concepts of Soil Water Physics

Saturated soil water physics

Unsaturated soil water physics

Preferred Pathways, bypass Flow

Swelling Soils

3 Zero Flux Plane Method

Principles

Summary of assumptions

Advantages, disadvantages and when to choose

Worked example

Other examples of the application of the zero flux method

4 Methods based on Darcy's Law

Unit gradient method

Measured gradient method

Summary of assumptions

Advantages, disadvantages and when to choose

Examples of the application of Darcy's Law methods

5 Lysimetry

Lysimeter requirements

Weighing lysimeters

Non-weighing lysimeters

Use of lysimeters to measure recharge

Summary of assumptions

Advantages, disadvantages and when to choose

Examples of the use of lysimeters to measure deep drainage and recharge

6 Soil Water Flux Meters

7 General Discussion of Techniques

8 References

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