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The Asian nitrogen cycle case study.

Xunhua Zheng1, Congbin Fu, Xingkai Xu

  • 1Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, P.R. China. zxh@mail.iap.ac.cn

Ambio
|June 25, 2002
PubMed
Summary
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Asian reactive nitrogen pollution has surged due to increased food and energy demands. Addressing this environmental nitrogen enrichment requires improved fertilizer efficiency and reduced emissions, potentially through advanced biological technology.

Area of Science:

  • Environmental Science
  • Biogeochemistry
  • Agricultural Science

Background:

  • Reactive nitrogen (Nr) accumulation poses significant environmental challenges.
  • Understanding nitrogen budgets is crucial for managing environmental impacts.
  • Asia's rapid development has amplified nitrogen pollution concerns.

Purpose of the Study:

  • To analyze historical and projected nitrogen budgets in Asia from 1961 to 2030.
  • To identify the primary drivers of environmental nitrogen enrichment in the region.
  • To explore potential solutions for mitigating nitrogen pollution.

Main Methods:

  • Utilized the IAP-N 1.0 model, incorporating Inter-governmental Panel on Climate Change (IPCC) methodologies.
  • Employed Asia-specific parameters and a Food and Agriculture Organization of the United Nations (FAO) database.

Related Experiment Videos

  • Analyzed national and regional nitrogen budgets over a multi-decadal timeline.

    • Main Results:

    • Anthropogenic reactive nitrogen in Asia increased from 14.4 Tg N yr-1 in 1961 to 67.7 Tg N yr-1 in 2000, projected to reach 105.3 Tg N yr-1 by 2030.
    • A significant portion of anthropogenic reactive nitrogen has accumulated in the environment.
    • Increasing food/energy demand and inefficient fertilizer use/NOx emission control are key drivers.

    Conclusions:

    • Environmental nitrogen enrichment in Asia is driven by escalating demands and inadequate pollution control measures.
    • Future solutions may involve high-efficiency nitrogen fertilizers, contingent on biological technology advancements.
    • Effective management of nitrogen cycles is essential for sustainable development.