Biogeochemical cycles describe the transformation and movement of chemical substances in the global context. This text is designed for courses dealing with some aspect of biogeochemical cycles, and provides the core reading and references required for the majority of these courses. The book emphasizes the fundamentals of biogeochemistry and approaches to the analysis and understanding of complex processes. It requires no background in meteorology, geology, oceanography, or microbiology and includes questions, problems, exercises, and a glossary of terms. Features: * Emphasizes the fundamentals of biogeochemistry and approaches to the analysis and understanding of complex processes. * Requires no background in meteorology, geology, oceanography, or microbiology. * Includes questions, problems, exercises, and a glossary of terms.