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Chinese coastal seas are facing heavy atmospheric nitrogen deposition

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文献类型：外文期刊

作者： Luo, X. S. ¹ ; Tang, A. H. ¹ ; Shi, K. ³ ; Wu, L. H. ⁴ ; Li, W. Q. ⁵ ; Shi, W. Q. ⁶ ; Shi, X. K. ⁷ ; Erisman, J. W. ⁸ ; Zhan ¹ ;

作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Beijing 100094, Peoples R China

2.Henan Acad Agr Sci, Inst Plant Nutr Resources & Environm Sci, Zhengzhou, Peoples R China

3.Dalian Jiaotong Univ, Coll Environm & Chem Engn, Dalian, Peoples R China

4.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou 310003, Zhejiang, Peoples R China

5.Fujian Inst Tobacco Agr Sci, Fuzhou, Peoples R China

6.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Zhanjiang, Peoples R China

7.Agr Forestry & Water Dept Changdao Cty, Changdao, Peoples R China

8.Louis Bolk Inst, NL-3972 LA Driebergen, Netherlands

关键词： reactive N;atmospheric deposition;coastal sea;eutrophication;China

期刊名称：ENVIRONMENTAL RESEARCH LETTERS （影响因子：6.793；五年影响因子：7.801 ）

ISSN： 1748-9326

年卷期： 2014 年 9 卷 9 期

页码：

收录情况： SCI

摘要： As the amount of reactive nitrogen (N) generated and emitted increases the amount of N deposition and its contribution to eutrophication or harmful algal blooms in the coastal zones are becoming issues of environmental concern. To quantify N deposition in coastal seas of China we selected six typical coastal sites from North to South in 2011. Concentrations of NH3, HNO3, NO2, particulate NH4+ (pNH(4)(+)) and pNO(3)(-) ranged from 1.97-4.88, 0.46-1.22, 3.03-7.09, 2.24-4.90 and 1.13-2.63 mu g Nm(-3) at Dalian (DL), Changdao (CD), Linshandao (LS), Fenghua (FH), Fuzhou (FZ), and Zhanjiang (ZJ) sites, respectively. Volume-weighted NO3--N and NH4+-N concentrations in precipitation varied from 0.46 to 1.67 and 0.47 to 1.31 mg N L-1 at the six sites. Dry, wet and total deposition rates of N were 7.8-23.1, 14.2-25.2 and 22.0-44.6 kg N ha(-1) yr(-1) across the six coastal sites. Average N dry deposition accounted for 45.4% of the total deposition and NH3 and pNH(4)(+) contributed to 76.6% of the dry deposition. If we extrapolate our total N deposition of 33.9 kg N ha(-1) yr(-1) to the whole Chinese coastal sea area (0.40 million km(2)), total N deposition amounts to 1.36 Tg N yr(-1), a large external N input to surrounding marine ecosystems.

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关键词：

Chinese coastal seas are facing heavy atmospheric nitrogen deposition

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Quantifying atmospheric nitrogen deposition through a nationwide monitoring network across China

An evaluation of atmospheric N-r pollution and deposition in North China after the Beijing Olympics

Changes in the soil environment from excessive application of fertilizers and manures to two contrasting intensive cropping systems on the North China Plain

Quantifying atmospheric nitrogen deposition through a nationwide monitoring network across China

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作者其他论文更多>>

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