Book excerpt: Soil is one of the many natural resources present in abundance and variety. Soil science deals with the structure, composition, mapping and classification of soils all over the globe. The environmentalists and soil scientists are trying hard to preserve the quality of soils and arable lands. This book provides an extensive analysis on a wide array of topics such as nutrient management, water management, wetlands, sensitive and unstable soils, manure, contamination and soil conservation, etc. This book is compiled in such a manner, that it will provide in-depth knowledge about the theory and practice of soil science. A number of latest researches have been included to keep the readers up-to-date with the global concepts in this area of study. It will serve as a reference guide for soil scientists, geologists, environmentalists, ecologists, researchers, professionals and students involved with the field of soil science at various levels.