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The Chemistry of Soils
This book is intended for use by scientists and engineers in their research or in
their professional practice, and for use as a textbook in one-semester or onequarter
courses on soil chemistry or biogeochemistry. A background in basic
soil science as found, for example, in Introduction to the Principles and Practice
of Soil Science by R. E. White, Soils by William Dubbin, or Soils: Genesis and
Geomorphology by Randall Schaetzl and Sharon Anderson is assumed on the
part of the reader. An understanding of chemistry and calculus at an elementary
level also is necessary, although the latter topic is in fact applied very sparingly
throughout the text. Familiaritywith statistical analysis is of considerable
benefit while solving some of the problems accompanying the text.
The general plan of the book is to introduce the principal reactive components
of soils in the first four chapters, then to describe important soil
chemical processes in the next six. One hopes that the reader will notice that
a conscious effort has been made throughout the text to blur somewhat the
distinction between soil chemistry and soil microbiology. The final pair of
chapters discusses applications of soil chemistry to the two most important
issues attending the maintenance of soil quality for agriculture: soil acidity and
soil salinity. These two chapters are not intended to be comprehensive reviews,
but instead to serve as guides to the soil chemistry underlying the topics
discussed in more specialized courses or books on soil quality management.
A brief appendix on le Système International d’Unités (SI units) and physical
quantities used in soil chemistry is provided at the end of the book. Readers
are advised to review this appendix and work the problems in it before beginning
to read the book itself, not only as a prequel to the terminology appearing
in the text, but also as an aid to evaluating the status of their understanding
of introductory chemistry. The 180 problems following the chapters in this
book have been designed to reinforce or extend the main points discussed and
thus are regarded as an integral part of the text. No reader should be satisfied
with her or his understanding of soil chemistry without undertaking at least a
substantial portion of these problems. In addition to the problems, an annotated
reading list at the end of each chapter is offered to those who wish to
explore in greater depth the subject matter discussed. Both the problems and
the reading lists should figure importantly in any course of university lectures
based on this book.
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