Atmospheric wet organic nitrogen deposition in China: Insights from the national observation network
文献类型：期刊论文
| 作者 | Xi, Yue; Wang, Qiufeng; Zhu, Jianxing; Yang, Meng; Hao, Tianxiang; Chen, Yanran; Zhang, Qiongyu; He, Nianpeng; Yu, Guirui |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-11-10 |
| 卷号 | 898页码:165629 |
| ISSN号 | 0048-9697 |
| 关键词 | Nitrogen deposition Organic nitrogen China Spatial pattern Influencing factors Ecological effects |
| DOI | 10.1016/j.scitotenv.2023.165629 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Organic nitrogen (N) is an important component of atmospheric reactive N deposition, and its bioavailability is almost as important as that of inorganic N. Currently, there are limited reports of national observations of organic N deposition; most stations are concentrated in rural and urban areas, with even fewer long-term observations of natural ecosystems in remote areas. Based on the China Wet Deposition Observation Network, this study regularly collected monthly wet deposition samples from 43 typical ecosystems from 2013 to 2021 and measured related N concentrations. The aim was to provide a more comprehensive assessment of the multicomponent characteristics of atmospheric wet N deposition and reveal the influencing factors and potential sources of wet dissolved organic N (DON) deposition. The results showed that atmospheric wet deposition fluxes of NO3 �, NH4+, DON and dissolved total N (DTN) were 4.68, 5.25, 4.32, and 13.05 kg N ha-1 yr � 1, respectively, and that DON accounted for 30 % of DTN deposition (potentially up to 50 % in remote areas). Wet DON deposition was related to anthropogenic emissions (agriculture, biomass burning, and traffic), natural emissions (volatile organic compound emissions from vegetation), and precipitation processes. The wet DON deposition flux was higher in South, Central, and Southwest China, with more precipitation and intensive agricultural activities or more vegetation cover, and lower in Northwest China and Inner Mongolia, with less precipitation and human activities or vegetation cover. DON was the main contributor to DTN deposition in remote areas and was possibly related to natural emissions. In rural and urban areas, DON may have been more influenced by agricultural activities and anthropogenic emissions. This study quantified the long-term spatiotemporal patterns of wet N deposition and provides a reference for future N addition experiments and N cycle studies. Further consideration of DON deposition is required, especially in the context of anthropogenic control of NO2 and NH3. |
| WOS关键词 | N DEPOSITION ; INORGANIC NITROGEN ; AEROSOL-PARTICLES ; PRECIPITATION ; TEMPERATURE ; FOREST ; BIOAVAILABILITY ; AGROECOSYSTEM ; IMPACTS ; RIVERS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001047424700001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194493]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Institute of Geographic Sciences & Natural Resources Research, CAS 2.Chinese Academy of Sciences 3.University of Chinese Academy of Sciences, CAS 4.Tianjin University 5.Northeast Normal University - China |
| 推荐引用方式 GB/T 7714 | Xi, Yue,Wang, Qiufeng,Zhu, Jianxing,et al. Atmospheric wet organic nitrogen deposition in China: Insights from the national observation network[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,898:165629. |
| APA | Xi, Yue.,Wang, Qiufeng.,Zhu, Jianxing.,Yang, Meng.,Hao, Tianxiang.,...&Yu, Guirui.(2023).Atmospheric wet organic nitrogen deposition in China: Insights from the national observation network.SCIENCE OF THE TOTAL ENVIRONMENT,898,165629. |
| MLA | Xi, Yue,et al."Atmospheric wet organic nitrogen deposition in China: Insights from the national observation network".SCIENCE OF THE TOTAL ENVIRONMENT 898(2023):165629. |
入库方式： OAI收割
来源：地理科学与资源研究所
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