• Preface; Part I. General Features of the Nitrogen Cycle: 1. Introduction; 2. Evolutionary and current constraints on the nitrogen cycle; 3. Shortened and open nitrogen cycles: effects of environment; Part II. Case Histories From Particular Environments: 4. Nitrogen cycling in dry areas; 5. Terrestrial areas not subject to regular drought; 6. Aquatic ecosystems; 7. Impact of man; References; Index.

"...an excellent introduction to the biochemical processes of the nitrogen cycle and to the ecology of organisms that participate in it." Ecology

• Preface; Part I. General Features of the Nitrogen Cycle: 1. Introduction; 2. Evolutionary and current constraints on the nitrogen cycle; 3. Shortened and open nitrogen cycles: effects of environment; Part II. Case Histories From Particular Environments: 4. Nitrogen cycling in dry areas; 5. Terrestrial areas not subject to regular drought; 6. Aquatic ecosystems; 7. Impact of man; References; Index.

"...an excellent introduction to the biochemical processes of the nitrogen cycle and to the ecology of organisms that participate in it." Ecology

• Preface; Part I. General Features of the Nitrogen Cycle: 1. Introduction; 2. Evolutionary and current constraints on the nitrogen cycle; 3. Shortened and open nitrogen cycles: effects of environment; Part II. Case Histories From Particular Environments: 4. Nitrogen cycling in dry areas; 5. Terrestrial areas not subject to regular drought; 6. Aquatic ecosystems; 7. Impact of man; References; Index.

"...an excellent introduction to the biochemical processes of the nitrogen cycle and to the ecology of organisms that participate in it." Ecology