This book provides a foundation in soil principles and concepts and their application, defining the role of soils and examining their interaction with the environment. Also discussed are related environmental concerns such as acid rain, pesticide pollution and hazardous waste disposal. It incorporates information on chemistry, physics, geology and plant physiology in its examination of soil properties and soil-plant relationships. Mechanisms controlling soil pH, weathering and soil formation processes, heat movement in soil, prediction and control of wind and water erosion and other topics are covered in theoretical detail. The book is aimed at undergraduate students.