Benefit of China’s reduction in nitrogen oxides emission to natural ecosystems in East Asia with respect to critical load exceedance

Xie, Danni; Zhao, Bin; Wang, Shuxiao; Duan, Lei

doi:10.1016/j.envint.2020.105468

Title: Benefit of China’s reduction in nitrogen oxides emission to natural ecosystems in East Asia with respect to critical load exceedance

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Abstract

The emission of nitrogen oxides (NO_x) in China decreased by 15% from 2010 to 2015 (without a significant decrease in NH₃ emission), resulting in the decline of nitrogen (N) deposition in East Asia. Empirical N critical load exceedance was used to assess the benefit of the NO_x emission reduction in China to natural ecosystems in East Asia. Empirical N critical loads for major forest and grassland types in East Asia were assigned based on field manipulation experiments for N effects. The critical load map based on the minimum of the critical load range of each vegetation type showed that empirical critical loads were generally lower in the Tibetan Plateau and some parts of northeastern China (≤5 kgN·ha^–1·a^–1), and higher in northern and southern China (≥20 kgN·ha^–1·a^–1). Empirical critical loads were also low in some parts of central and northern Japan (≤5 kgN·ha^–1·a^–1) and the south Korean Peninsula (5–10 kgN·ha^–1·a^–1). As a benefit of NO_x emission reduction in China, N deposition in East Asia decreased significantly from 2010 to 2015. The total area and total amount of critical load exceedance in East Asia declined 4.6% and 14.3% respectively, suggesting great benefits to natural ecosystems.

Authors:

Xie, Danni ^[1]; Zhao, Bin ^[2]; Wang, Shuxiao ^[1]; Duan, Lei ^[1]

Tsinghua Univ., Beijing (China)
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Publication Date:: Sat Jan 11 00:00:00 EST 2020

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE; National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1701723

Report Number(s):: PNNL-SA-151012
Journal ID: ISSN 0160-4120

Grant/Contract Number:: AC05-76RL01830; 41877329; 21607091

Resource Type:: Accepted Manuscript

Journal Name:: Environment International

Additional Journal Information:: Journal Volume: 136; Journal ID: ISSN 0160-4120

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; Nitrogen deposition; Air pollution effect; Fertilization experiment; CMAQ model; Emission abatement; Nitrogen saturation

Citation Formats


                    Xie, Danni, Zhao, Bin, Wang, Shuxiao, and Duan, Lei. Benefit of China’s reduction in nitrogen oxides emission to natural ecosystems in East Asia with respect to critical load exceedance.  United States: N. p., 2020. 
Web.  doi:10.1016/j.envint.2020.105468.

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                    Xie, Danni, Zhao, Bin, Wang, Shuxiao, & Duan, Lei. Benefit of China’s reduction in nitrogen oxides emission to natural ecosystems in East Asia with respect to critical load exceedance.  United States.  https://doi.org/10.1016/j.envint.2020.105468

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                    Xie, Danni, Zhao, Bin, Wang, Shuxiao, and Duan, Lei. Sat .  
"Benefit of China’s reduction in nitrogen oxides emission to natural ecosystems in East Asia with respect to critical load exceedance".  United States.  https://doi.org/10.1016/j.envint.2020.105468.  https://www.osti.gov/servlets/purl/1701723.

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@article{osti_1701723,

  title        = {Benefit of China’s reduction in nitrogen oxides emission to natural ecosystems in East Asia with respect to critical load exceedance},

  author       = {Xie, Danni and Zhao, Bin and Wang, Shuxiao and Duan, Lei},

  abstractNote = {The emission of nitrogen oxides (NOx) in China decreased by 15% from 2010 to 2015 (without a significant decrease in NH3 emission), resulting in the decline of nitrogen (N) deposition in East Asia. Empirical N critical load exceedance was used to assess the benefit of the NOx emission reduction in China to natural ecosystems in East Asia. Empirical N critical loads for major forest and grassland types in East Asia were assigned based on field manipulation experiments for N effects. The critical load map based on the minimum of the critical load range of each vegetation type showed that empirical critical loads were generally lower in the Tibetan Plateau and some parts of northeastern China (≤5 kgN·ha–1·a–1), and higher in northern and southern China (≥20 kgN·ha–1·a–1). Empirical critical loads were also low in some parts of central and northern Japan (≤5 kgN·ha–1·a–1) and the south Korean Peninsula (5–10 kgN·ha–1·a–1). As a benefit of NOx emission reduction in China, N deposition in East Asia decreased significantly from 2010 to 2015. The total area and total amount of critical load exceedance in East Asia declined 4.6% and 14.3% respectively, suggesting great benefits to natural ecosystems.},

  doi          = {10.1016/j.envint.2020.105468},

  journal      = {Environment International},

  number       = ,

  volume       = 136,

  place        = {United States},

  year         = {Sat Jan 11 00:00:00 EST 2020},

  month        = {Sat Jan 11 00:00:00 EST 2020}

}

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