Ecosystem Biogeochemistry ─ Element Cycling in the Forest Landscape

This textbook presents a comprehensive process-oriented approach to biogeochemistry that is intended to appeal to readers who want to go beyond a general exposure to topics in biogeochemistry, and instead are seeking a holistic understanding of the interplay of biotic and environmental drivers in the cycling of elements in forested watersheds. The book is organized around a core set of ecosystem processes and attributes that collectively help to generate the whole-system structure and function of a terrestrial ecosystem. In the first nine chapters, a conceptual framework is developed based on distinct soil, microbial, plant, atmospheric, hydrologic, and geochemical processes that are integrated in the element cycling behavior of watershed ecosystems. With that conceptual foundation in place, students then proceed to the final three chapters where they are challenged to think critically about integrated element cycling patterns; roles for biogeochemical models; the likely impacts of disturbance, stress, and management on watershed biogeochemistry; and linkages among patterns and processes in watersheds experiencing novel environmental changes.

Included with the text are figures, tables of comparative data, extensive literature citations, a glossary of terms, an index, and a set of 24 biogeochemical problems with answers. The problems are intended to support chapter concepts and to demonstrate how critical thinking skills, simple algebra, and thoughtful human logic can be used to solve applied problems in biogeochemistry that might be encountered by a research scientist or a resource manager.

Using this book as an introduction to biogeochemistry, students will achieve a level of subject mastery and disciplinary perspective that will permit them to see and to interpret the individual components, interactions, and synergies that are represented in the dynamic element cycling patterns of watershed ecosystems.

Dr. Christopher Cronan is a Professor in the School of Biology and Ecology at the University of Maine, Orono, ME. He is the author of a previous introductory textbook entitled Introduction to Ecology and Ecosystems Analysis, and has published over 70 peer-reviewed scientific articles in journals such as Bioscience, Science, Nature, Water Resources Research, Environmental Science and Technology, Ecological Modelling, Landscape Ecology, Tree Physiology, Biogeochemistry, Analytical Chemistry, Soil Science Society of America Journal, Geochimica Cosmochimica Acta, and Environmental Management. He is former director of the School of Biology and Ecology and founding director of the Graduate Program in Ecology and Environmental Science at the University of Maine. The author earned a B.A. in ecology at the University of Pennsylvania and a Ph.D. at Dartmouth College.