| Increase in Agricultural-Derived NH x and Decrease in Coal Combustion-Derived NO x Result in Atmospheric Particulate N-NH4 + Surpassing N-NO3 - in the South China Sea | |
Zhang, Zheng-En1,2,3; Li, Jun1,2; Zhang, Ruijie5,6,7,8; Tian, Chongguo4 ; Sun, Zeyu3,4; Li, Tingting1,2,3; Han, Minwei5,6,7; Yu, Kefu5,6,7,8; Zhang, Gan1,2
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| Source Publication | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| ISSN | 0013-936X |
| 2024-03-28 | |
| Volume | 58Issue:15Pages:6682-6692 |
| Keyword | oceanic nitrogen deposition marine aerosol nitrogen/oxygen isotope sourceapportionment south China sea |
| DOI | 10.1021/acs.est.3c09173 |
| Corresponding Author | Li, Jun(junli@gig.ac.cn) ; Zhang, Ruijie(rjzhang@gxu.edu.cn) |
| Abstract | The atmospheric deposition of anthropogenic active nitrogen significantly influences marine primary productivity and contributes to eutrophication. The form of nitrogen deposition has been evolving annually, alongside changes in human activities. A disparity arises between observation results and simulation conclusions due to the limited field observation and research in the ocean. To address this gap, our study undertook three field cruises in the South China Sea in 2021, the largest marginal sea of China. The objective was to investigate the latest atmospheric particulate inorganic nitrogen deposition pattern and changes in nitrogen sources, employing nitrogen-stable isotopes of nitrate (delta 15N-NO3-) and ammonia (delta 15N-NH4+) linked to a mixing model. The findings reveal that the N-NH4+ deposition generally surpasses N-NO3- deposition, attributed to a decline in the level of NO x emission from coal combustion and an upswing in the level of NH x emission from agricultural sources. The disparity in deposition between N-NH4+ and N-NO3- intensifies from the coast to the offshore, establishing N-NH4+ as the primary contributor to oceanic nitrogen deposition, particularly in ocean background regions. Fertilizer (33 +/- 21%) and livestock (20 +/- 6%) emerge as the primary sources of N-NH4+. While coal combustion continues to be a significant contributor to marine atmospheric N-NO3-, its proportion has diminished to 22 (Northern Coast)-35% (background area) due to effective NOx emission controls by the countries surrounding the South China Sea, especially the Chinese Government. As coal combustion's contribution dwindles, the significance of vessel and marine biogenic emissions grows. The daytime higher atmospheric N-NO3- concentration and lower delta N-15-NO3- compared with nighttime further underscore the substantial role of marine biogenic emissions. |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) ; Open Funding of Guangxi Laboratory on the Study of Coral Reefs in the South China Sea ; Guangdong Foundation for Program of Science and Technology Research ; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | NITROGEN ISOTOPIC COMPOSITION ; REGIONAL BACKGROUND SITE ; SOURCE APPORTIONMENT ; DRY DEPOSITION ; EMISSION ; NITRATE ; AMMONIA ; SEAWATER ; OCEAN ; VARIABILITY |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| WOS ID | WOS:001193874700001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.yic.ac.cn/handle/133337/34952 |
| Collection | 中国科学院烟台海岸带研究所 |
| Corresponding Author | Li, Jun; Zhang, Ruijie |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Organ Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou Inst Geoch, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 5.Guangxi Univ, Guangxi Lab Study Coral Reefs South China Sea, Nanning 530004, Peoples R China 6.Guangxi Univ, Coral Reef Res Ctr China, Nanning 530004, Peoples R China 7.Guangxi Univ, Sch Marine Sci, Nanning 530004, Peoples R China 8.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519080, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Zheng-En,Li, Jun,Zhang, Ruijie,et al. Increase in Agricultural-Derived NH x and Decrease in Coal Combustion-Derived NO x Result in Atmospheric Particulate N-NH4 + Surpassing N-NO3 - in the South China Sea[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2024,58(15):6682-6692. |
| APA | Zhang, Zheng-En.,Li, Jun.,Zhang, Ruijie.,Tian, Chongguo.,Sun, Zeyu.,...&Zhang, Gan.(2024).Increase in Agricultural-Derived NH x and Decrease in Coal Combustion-Derived NO x Result in Atmospheric Particulate N-NH4 + Surpassing N-NO3 - in the South China Sea.ENVIRONMENTAL SCIENCE & TECHNOLOGY,58(15),6682-6692. |
| MLA | Zhang, Zheng-En,et al."Increase in Agricultural-Derived NH x and Decrease in Coal Combustion-Derived NO x Result in Atmospheric Particulate N-NH4 + Surpassing N-NO3 - in the South China Sea".ENVIRONMENTAL SCIENCE & TECHNOLOGY 58.15(2024):6682-6692. |
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