Quantifying atmospheric nitrogen deposition through a nationwide monitoring network across China

文献类型： 外文期刊

第一作者： Luo, X. S.

作者： Luo, X. S.;Tang, A. H.;Wu, Q. H.;Yang, D. W.;Zhang, Y. Y.;Xue, J.;Li, Q. Q.;Zhang, F. S.;Liu, X. J.;Luo, X. S.;Pan, Y. P.;Zhang, L.;Shen, J. L.;Zhang, Y.;Li, K. H.;Li, W. Q.;Li, Q. Q.;Tang, L.;Lu, S. H.;Liang, T.;Tong, Y. A.;Liu, P.;Zhang, Q.;Xiong, Z. Q.;Shi, X. J.;Wu, L. H.;Shi, W. Q.;Tian, K.;Zhong, X. H.;Shi, K.;Tang, Q. Y.;Zhang, L. J.;Huang, J. L.;He, C. E.;Kuang, F. H.;Zhu, B.;Liu, H.;Jin, X.;Xin, Y. J.;Shi, X. K.;Du, E. Z.;Du, E. Z.;Dore, A. J.;Tang, S.;Collett, J. L., Jr.;Goulding, K.;Sun, Y. X.;Ren, J.

作者机构：

期刊名称：ATMOSPHERIC CHEMISTRY AND PHYSICS （ 影响因子：6.133； 五年影响因子：6.546 ）

ISSN： 1680-7316

年卷期： 2015 年 15 卷 21 期

页码：

收录情况： SCI

摘要： 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 N-r 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 N-r concentrations and dry and wet/bulk N-r deposition. On a national basis, the annual average concentrations (1.3-47.0 mu g 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 N-r 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.

分类号： P4

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