The Nitrogen Cycle at Regional to Global Scales

Chapter 1 Towards an ecological understanding of biological nitrogen fixation

Chapter 2 Dinitrogen fixation in the world’s oceans

Chapter 3 The origin, composition and rates of organic nitrogen deposition: A missing piece of the nitrogen cycle?

Chapter 4 Anthropogenic nitrogen sources and relationships to riverine nitrogen export in the northeastern U.S.A.

Chapter 5 Sources of nitrate in rivers draining sixteen watersheds in the northeastern U.S.: Isotopic constraints

Chapter 6 Nitrogen retention in rivers: model development and application to watersheds in the northeastern U.S.A.

Chapter 7 Forest nitrogen sinks in large eastern U.S. watersheds: estimates from forest inventory and an ecosystem model

Chapter 8 Where did all the nitrogen go? Fate of nitrogen inputs to large watersheds in the northeastern U.S.A.

Chapter 9 A comparison of models for estimating the riverine export of nitrogen from large watersheds

Chapter 10 Regional analysis of inorganic nitrogen yield and retention in high-elevation ecosystems of the Sierra Nevada and Rocky Mountains

Chapter 11 Yield of nitrogen from minimally disturbed watersheds of the United States

Chapter 12 Nitrogen budgets for the Republic of Korea and the Yellow Sea region

Chapter 13 Regional nitrogen budgets for China and its major watersheds

Chapter 14 Landscape, regional and global estimates of nitrogen flux from land to sea: Errors and uncertainties

Chapter 15 Policy implications of human-accelerated nitrogen cycling