Developments in soil classification have accompanied parallel progress in our understanding of the soil system. However the theories behind the classifications and the purposes for which they were created have changed over time. The editors hope that this comprehensive synthesis will help to rally soil scientists around the world to develop an acceptable classification system for soils. It is only when the global soil science community agrees to such a system that we can truly say that we have science. Soil Classification: A Global Desk Reference is the first book to illustrate the current state of national and international soil classification systems. In this groundbreaking reference, distinguished soil scientists, many of whom were involved in the design of their respective national or international systems, evaluate developments in soil classification during the last century. They review the concepts, practices, and goals that led to the creation of individual classification systems and recommend modifications to classification systems to meet new demands. The documentation in this book serves as a foundation for the revision of existing soil taxonomies and the creation of new ones.The electron micrographs seem to show the coatings occupying a large fraction of the soil volume. ... For answers to this question, samples were obtained from the International Institute of Tropical Agriculture Aeld station in Ibadan, ... In electron micrographs (see Figure 8.1), the amorphous fraction appears as a coat of paint on DEVELOPMENTS IN SOIL CHEMISTRY AND SOIL CLASSIFICATION 69.
|Author||:||Hari Eswaran, Robert Ahrens, Thomas J. Rice, Bobby A. Stewart|
|Publisher||:||CRC Press - 2002-12-26|