This series is dedicated to serving the growing community of scholars and practitioners concerned with the principles and applications of environmental management. Each volume will be a thorough treatment of a specific topic of importance for proper management practices. A fundamental objective of these books is to help the reader discern and implement man's stewardship of our environment and the world's renewable resources. For we must strive to under­ stand the relationship between man and nature, act to bring harmony to it, and nurture an environment that is both stable and productive. These objectives have often eluded us because the pursuit of other individual and societal goals has diverted us from a course of living in balance with the environment. At times, therefore, the environmental manager may have to exert restrictive control, which is usually best applied to man, not nature. Attempts to alter or harness nature have often failed or backfired, as exemplified by the results of imprudent use of herbicides, fertilizers, water, and other agents. Each book in this series will shed light on the fundamental and applied aspects of environmental management. It is hoped that each will help solve a practical and serious environmental problem.

1. Introduction.- A. Air Pollution.- B. Forest Ecosystems.- C. Interactions between Air Pollutants and Forest Ecosystems.- References.- Section I. Forests Function as Sources and Sinks for Air Contaminants-Class I Interactions.- 2. Role of Forests in Major Element Cycles: Carbon, Sulfur, and Nitrogen.- 3. Forests as Sources of Hydrocarbons, Particulates, and Other Contaminants.- 4. Forests as Sinks for Air Contaminants: Soil Compartment.- 5. Forests as Sinks for Air Contaminants: Vegetative Compartment.- 6. Class I Summary: Relative Importance of Forest Source and Sink Strength and Some Potential Consequences of These Functions.- Section II. Forests are Influenced by Air Contaminants in a Subtle Manner - Class II Interactions.- 7. Forest Tree Reproduction: Influence of Air Pollutants.- 8. Forest Nutrient Cycling: Influence of Trace Metal Pollutants.- 9. Forest Nutrient Cycling: Influence of Acid Precipitation.- 10. Forest Nutrient Cycling: Influence of Air Pollutants on Symbiotic Microorganisms.- 11. Forest Metabolism: Influence of Air Contaminants on Photosynthesis and Respiration.- 12. Forest Stress: Influence of Air Pollutants on Phytophagous Forest Insects.- 13. Forest Stress: Influence of Air Pollutants on Disease Caused by Microbial Pathogens.- 14. Forest Stress: Symptomatic Foliar Damage Caused by Air Contaminants.- 15. Class II Summary: Forest Responds by Exhibiting Alterations in Growth, Biomass, Species Composition, Disease, and Insect Outbreaks.- Section III Forest Ecosystems are Influenced by Air Contaminants in a Dramatic Manner-Class III Interactions.- 16. Forest Ecosystem Destruction: A Localized Response to Excessive Air Pollution.- 17. Synopsis and Prognosis.- Appendix Common and Scientific Names of Woody Plants Cited in This Book.