This volume contains definitive descriptions of each major area in soil science; including its fundamental principles, appropriate methods to measure each property, and guidelines for the interpretation of the data for various applications (agricultural, engineering and environmental). Several major subdisciplines of soil science are discussed using an abundance of tables, figures, and associated text to illustrate these concepts. Chapters contain descriptions of concepts and theories, definitions, approaches, methodologies and procedures, data in tabular and figure forms, and extensive references.