Recent patterns of anthropogenic reactive nitrogen emissions with urbanization in China : Dynamics, major problems, and potential solutions

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

16 Scopus Citations
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Author(s)

  • Chaofan Xian
  • Jingjing Zhang
  • Yupeng Fan
  • Hua Zheng
  • James Salzman
  • Zhiyun Ouyang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)1071-1081
Journal / PublicationScience of the Total Environment
Volume656
Online published24 Nov 2018
Publication statusPublished - 15 Mar 2019

Abstract

Anthropogenic emissions of reactive nitrogen (Nr) result in adverse impacts on the ecosystems. Nowhere has that threat been more challenging than in rapidly urbanized China, the world's largest anthropogenic Nr producer. The Nanjing Declaration in 2004 called for global reductions in Nr emissions. To assess China's progress, multisource Nr emissions were evaluated with a quantitative method from 2004 to 2014. The results showed that national Nr emissions had increased with fluctuation over this period, 55–59% of the total Nr emissions were emitted to the atmosphere, and that agricultural production still was the biggest contributor (62–69%). The hotspots were mainly located in the developed and coastal regions that also have high population densities. Urbanization was associated with overall decreases in agricultural Nr emission and increases in industrial and residential Nr emissions. The overall increase in residential Nr emission per capita played a large role in driving the growth of national Nr emission. Continuing urbanization poses a significant challenge to future Nr mitigation for ecosystem sustainability and a range of strategies, covering improvement of N-use efficiency, slowdown of Western China's urbanization, and promotion of low N intensive lifestyle, are proposed that can promote Chinese low-nitrogen development.

Research Area(s)

  • Challenges, China, Low-nitrogen development, Reactive nitrogen, Urbanization

Citation Format(s)

Recent patterns of anthropogenic reactive nitrogen emissions with urbanization in China : Dynamics, major problems, and potential solutions. / Xian, Chaofan; Zhang, Xiaoling; Zhang, Jingjing; Fan, Yupeng; Zheng, Hua; Salzman, James; Ouyang, Zhiyun.

In: Science of the Total Environment, Vol. 656, 15.03.2019, p. 1071-1081.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review