Recharge of Phreatic Aquifers in (Semi-)Arid Areas : IAH International Contributions to Hydrogeology 19 book cover
1st Edition

Recharge of Phreatic Aquifers in (Semi-)Arid Areas
IAH International Contributions to Hydrogeology 19

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ISBN 9789054106944
Published January 1, 1997 by CRC Press
240 Pages

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Book Description

Groundwater use is of fundamental importance to meet the rapidly expanding urban, industrial and agricultural water requirements in (semi) arid areas. Quantifying the current rate of groundwater recharge and define its variability in space and time are thus prerequesites for efficient groundwater resource managment in these regions, where such resources are often the key to economic development. Attention focuses on recharge of phreatic aquifers, often the most readily-available and affordable source of water in (semi) arid regions. These aquifers are also the most susceptible to contamination, with the recharge rate determining their level of vulnerability.  (Semi) arid zone recharge can be highly variable, the greater the aridity, the smaller and potentially more variable the natural flux.  Its determination is an iterative process, involving progressive data collection  and resource evaluation; there is also a need to use more than one technique to verify results.  Direct, localised and indirect recharge mechanisms from a spectrum of known sources are addressed in the framework of recharge from precipitation, intermittant flow and permanent water bodies.  The approach taken for each of these reflects the nature and current understanding of the processes involved.  The volume also reviews current recharge estimation challenges, outlines recent developments and offers guidance for potential solutions.

Table of Contents

1. Groundwater Recharge Principles

2. Recharge from Precipitation

3. Recharge from Intermittent Flow

4. Recharge from Permanent Water Bodies

Case Studies:

Losses from canals in Pakistan

Efficiency of artificial recharge from percolation tanks

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Dr Ian Simmers is Emeritus Professor of Geography at the Free University of Amsterdam.  His research interests were in recharge and flow in porous media as applied to the management and protection of wetlands, on which he has published extensively.  He is Editor in Chief of the publication series of IAH.