Description:Biogeochemistry is the study of the geochemical reactions that occur in the atmosphere, oceans, and crustal minerals of the Earth's surface as affected by living organisms. This text examines global changes that have occurred and are occurring in water, air, and on land, and relates them to the global cycles of water, carbon, nitrogen, phosphorous and sulphur. The text is intended for students and professionals in the environmental, geochemical, and ecological disciplines