Quantifying atmospheric nitrogen deposition through a nationwide monitoring network across China

Abstract. A Nationwide Nitrogen Deposition Monitoring Network (NNDMN) containing 43 monitoring sites was established in China to measure gaseous NH3, NO2, and HNO3 and particulate NH4+ and NO3− in air and/or precipitation from 2010 to 2014. Wet/bulk deposition fluxes of Nr species were collected by precipitation gauge method and measured by continuous-flow analyzer; dry deposition fluxes were estimated using airborne concentration measurements and inferential models. Our observations reveal large spatial variations of atmospheric Nr concentrations and dry and wet/bulk Nr deposition. On a national basis, the annual average concentrations (1.3–47.0 μg N m−3) and dry plus wet/bulk deposition fluxes (2.9–83.3 kg N ha−1 yr−1) of inorganic Nr species are ranked by land use as urban > rural > background sites and by regions as north China > southeast China > southwest China > northeast China > northwest China > Tibetan Plateau, reflecting the impact of anthropogenic Nr emission. Average dry and wet/bulk N deposition fluxes were 20.6 ± 11.2 (mean ± standard deviation) and 19.3 ± 9.2 kg N ha−1 yr−1 across China, with reduced N deposition dominating both dry and wet/bulk deposition. Our results suggest atmospheric dry N deposition is equally important to wet/bulk N deposition at the national scale. Therefore, both deposition forms should be included when considering the impacts of N deposition on environment and ecosystem health.

[1]  L. Erda,et al.  Emissions of N2O, NH3 and NOx from fuel combustion, industrial processes and the agricultural sectors in China , 2004, Nutrient Cycling in Agroecosystems.

[2]  E. Lin,et al.  Emissions of N2O, NH3 and NOx from fuel combustion, industrial processes and the agricultural sectors in China , 2000 .

[3]  J. Galloway,et al.  A chronology of human understanding of the nitrogen cycle† , 2013, Philosophical Transactions of the Royal Society B: Biological Sciences.

[4]  Xixi Lu,et al.  Wet atmospheric deposition of nitrogen: 20 years measurement in Shenzhen City, China , 2012, Environmental Monitoring and Assessment.

[5]  L. Ma,et al.  Agricultural ammonia emissions inventory and spatial distribution in the North China Plain. , 2010, Environmental pollution.

[6]  J. Lamarque,et al.  Nitrogen and sulfur deposition on regional and global scales: A multimodel evaluation , 2006 .

[7]  David Tilman,et al.  Loss of plant species after chronic low-level nitrogen deposition to prairie grasslands , 2008, Nature.

[8]  M. Wesely.  Parameterization of surface resistances to gaseous dry deposition in regional-scale numerical models , 1989 .

[9]  Keith Goulding,et al.  Enhanced nitrogen deposition over China , 2013, Nature.

[10]  Fusuo Zhang,et al.  Atmospheric organic nitrogen deposition in China , 2012 .

[11]  D. Fowler,et al.  The Exchange of Ammonia Between the Atmosphere and Plant Communities , 1993 .

[12]  G. Likens,et al.  Technical Report: Human Alteration of the Global Nitrogen Cycle: Sources and Consequences , 1997 .

[13]  G. Asner,et al.  Nitrogen Cycles: Past, Present, and Future , 2004 .

[14]  Dexia Wu,et al.  Wet and dry deposition of atmospheric nitrogen at ten sites in Northern China , 2012 .

[15]  Rajasekhar Balasubramanian,et al.  Ammonia in the atmosphere: a review on emission sources, atmospheric chemistry and deposition on terrestrial bodies , 2013, Environmental Science and Pollution Research.

[16]  X. Chen,et al.  Atmospheric deposition of nitrogen at five subtropical forested sites in South China. , 2007, The Science of the total environment.

[17]  Xuejun Liu,et al.  Liu et al. suspect that Zhu et al. (2015) may have underestimated dissolved organic nitrogen (N) but overestimated total particulate N in wet deposition in China. , 2015, The Science of the total environment.

[18]  N. He,et al.  Inorganic nitrogen wet deposition: Evidence from the North-South Transect of Eastern China. , 2015, Environmental pollution.

[19]  Fusuo Zhang,et al.  Nitrogen inputs and isotopes in precipitation in the North China Plain , 2008 .

[20]  D. Blake,et al.  Air quality during the 2008 Beijing Olympics: secondary pollutants and regional impact , 2010 .

[21]  D. Jacob,et al.  Global modeling of tropospheric chemistry with assimilated meteorology : Model description and evaluation , 2001 .

[22]  Maohong Fan,et al.  Air Pollution and Control in Different Areas of China , 2010 .

[23]  J. Mao,et al.  Atmospheric wet deposition of nitrogen and sulfur in the agroecosystem in developing and developed areas of Southeastern China , 2014 .

[24]  Hanqin Tian,et al.  Spatial and temporal patterns of nitrogen deposition in China: Synthesis of observational data , 2007 .

[25]  J. F. Clarke,et al.  Dry deposition calculations for the clean air status and trends network , 1997 .

[26]  J. Galloway,et al.  Transformation of the Nitrogen Cycle: Recent Trends, Questions, and Potential Solutions , 2008, Science.

[27]  Wan-tai Yu,et al.  Observation of the nitrogen deposition in the lower Liaohe River Plain, Northeast China and assessing its ecological risk , 2011 .

[28]  D. Bouldin,et al.  Nitrogen Deposition In and Around an Intensive Agricultural District in Central New York , 1999 .

[29]  Baojing Gu,et al.  Atmospheric reactive nitrogen in China: sources, recent trends, and damage costs. , 2012, Environmental science & technology.

[30]  D. Fowler,et al.  Monitoring and modelling of biosphere/atmosphere exchange of gases and aerosols in Europe. , 2005, Environmental pollution.

[31]  M. McElroy,et al.  Regional CO pollution and export in China simulated by the high-resolution nested-grid GEOS-Chem model , 2009 .

[32]  Wenche Aas,et al.  Introduction to the European Monitoring and Evaluation Programme (EMEP) and observed atmospheric composition change during 1972–2009 , 2012 .

[33]  Jean-Francois Lamarque,et al.  NITROGEN DEPOSITION ONTO THE UNITED STATES AND WESTERN EUROPE: SYNTHESIS OF OBSERVATIONS AND MODELS , 2005 .

[34]  Jiming Hao,et al.  Effectiveness of national air pollution control policies on the air quality in metropolitan areas of China. , 2014, Journal of environmental sciences.

[35]  Zhengyi Hu,et al.  Atmospheric inorganic nitrogen deposition to a typical red soil forestland in southeastern China , 2009, Environmental monitoring and assessment.

[36]  Mark A. Sutton,et al.  Dry deposition of reactive nitrogen to European ecosystems: a comparison of inferential models across the NitroEurope network , 2010 .

[37]  Xiaobing Zhou,et al.  Nitrogen deposition and its ecological impact in China: an overview. , 2011, Environmental pollution.

[38]  J. Cape,et al.  The cycling of organic nitrogen through the atmosphere , 2013, Philosophical Transactions of the Royal Society B: Biological Sciences.

[39]  J. Lynch,et al.  Present and future nitrogen deposition to national parks in the United States: critical load exceedances , 2013 .

[40]  Guirui Yu,et al.  Spatial and decadal variations in inorganic nitrogen wet deposition in China induced by human activity , 2014, Scientific Reports.

[41]  M. Sanz,et al.  European scale application of atmospheric reactive nitrogen measurements in a low-cost approach to infer dry deposition fluxes. , 2009 .

[42]  J. Seinfeld,et al.  Atmospheric Chemistry and Physics: From Air Pollution to Climate Change , 1997 .

[43]  Xin Huang,et al.  A high‐resolution ammonia emission inventory in China , 2012 .

[44]  Zhang Guozhon.  Limitations of Passive Sampling Technique of Rainfall Chemistry and Wet Deposition Flux Characterization , 2015 .

[45]  Jingyun Fang,et al.  Changes in wet nitrogen deposition in the United States between 1985 and 2012 , 2014 .

[46]  Leiming Zhang,et al.  A size-segregated particle dry deposition scheme for an atmospheric aerosol module , 2001 .

[47]  D. Shadwick,et al.  Air quality and atmospheric deposition in the eastern US: 20 years of change , 2014 .

[48]  Fusuo Zhang,et al.  High concentrations and dry deposition of reactive nitrogen species at two sites in the North China Plain. , 2009, Environmental pollution.

[49]  P. Matson,et al.  The Globalization of Nitrogen Deposition: Consequences for Terrestrial Ecosystems , 2002, Ambio.

[50]  Leiming Zhang,et al.  An intercomparison of the deposition models used in the CASTNET and CAPMoN networks , 2011 .

[51]  Mark A. Sutton,et al.  The influence of model grid resolution on estimation of national scale nitrogen deposition and exceedance of critical loads , 2011 .

[52]  D. Fowler,et al.  A New Diffusion Denuder System for Long-Term, Regional Monitoring of Atmospheric Ammonia and Ammonium , 2001 .

[53]  Jie Chang,et al.  Agricultural ammonia emissions contribute to China's urban air pollution , 2014 .

[54]  K. Hayashi,et al.  Regional characteristics of dry deposition of sulfur and nitrogen compounds at EANET sites in Japan from 2003 to 2008 , 2011 .

[55]  M. Viana,et al.  Urban NH3 levels and sources in a Mediterranean environment , 2012 .

[56]  Mark A. Sutton,et al.  Development of resistance models to describe measurements of bi-directional ammonia surface-atmosphere exchange , 1998 .

[57]  Hiroshi Hara,et al.  A global assessment of precipitation chemistry and deposition of sulfur, nitrogen, sea salt, base cations, organic acids, acidity and pH, and phosphorus , 2014 .

[58]  R. Skeffington,et al.  The effects of a changing pollution climate on throughfall deposition and cycling in a forested area in southern England. , 2012, The Science of the total environment.

[59]  Eiko Nemitz,et al.  Eddy covariance fluxes of peroxyacetyl nitrates (PANs) and NOy to a coniferous forest , 2006 .

[60]  M. Hassouna,et al.  Ammonia deposition near hot spots: processes, models and monitoring methods , 2009 .

[61]  Rohit Mathur,et al.  Historical gaseous and primary aerosol emissions in the United States from 1990 to 2010 , 2012 .

[62]  C. Chan,et al.  Air pollution in mega cities in China , 2008 .

[63]  Daven K. Henze,et al.  Atmospheric nitrogen deposition to the northwestern Pacific: seasonal variation and source attribution , 2015 .

[64]  Guofu Yuan,et al.  The composition, spatial patterns, and influencing factors of atmospheric wet nitrogen deposition in Chinese terrestrial ecosystems. , 2015, The Science of the total environment.

[65]  J. Cape,et al.  Measurement of dry deposition to bulk precipitation collectors using a novel flushing sampler. , 2009, Journal of environmental monitoring : JEM.

[66]  Allison M. Leach,et al.  The global nitrogen cycle in the twenty-first century , 2013, Philosophical Transactions of the Royal Society B: Biological Sciences.

[67]  Fusuo Zhang,et al.  Nitrogen deposition as an important nutrient from the environment and its impact on ecosystems in China , 2010 .

[68]  D. Murphy,et al.  Nitrogen deposition and its contribution to nitrogen cycling and associated soil processes , 1998 .

[69]  Naresh Kumar,et al.  Nitrogen Deposition to the United States: Distribution, Sources, and Processes , 2012 .

[70]  J. Burrows,et al.  Increase in tropospheric nitrogen dioxide over China observed from space , 2005, Nature.

[71]  Hanqin Tian,et al.  Half-century nitrogen deposition increase across China: A gridded time-series data set for regional environmental assessments , 2014 .

[72]  J. Y. Liu,et al.  An evaluation of atmospheric Nr pollution and deposition in North China after the Beijing Olympics , 2013 .