The global nitrogen cycle: Past, present and future
Food and energy production converts N2 to reactive N species that cascade through environmental reservoirs and in the process impact human and ecosystem health. This presentation will examine the impact of increased N mobilization on the global N cycle by contrasting N distribution in the late-19th century with those of the late-20th century. The presentation will give a general overview of regional differences and will conclude with a projection of the global N cycle for 2050.
作 者： James N. Galloway 作者单位： Environmental Sciences Department, University of Virginia, Charlottesville Virginia 22904, USA 刊 名： 中国科学C辑（英文版） SCI 英文刊名： SCIENCE IN CHINA SERIES C (LIFE SCIENCES) 年，卷(期)： 2005 48(z2) 分类号： P5 关键词： global N cycle human Nr creation N budgets consquences of N cycle alteration