Hysteresis response of wet nitrate deposition to emission reduction in Chinese terrestrial ecosystems

doi:10.1016/j.atmosenv.2021.118555

	Hysteresis response of wet nitrate deposition to emission reduction in Chinese terrestrial ecosystems
	Xi, Yue 1,2; Zhu, Jianxing 1; Zhang, Qiongyu 1,2; Dai, Guanhua 3; He, Nianpeng 1,2,4; Wang, Qiufeng 1,2
刊名	ATMOSPHERIC ENVIRONMENT
	2021-09-01
卷号	260 页码:10
关键词	Acid deposition China Nitrogen Sulfate Dynamics Pollution
ISSN号	1352-2310
DOI	10.1016/j.atmosenv.2021.118555
通讯作者	Zhu, Jianxing(zhujianxing2008@yeah.net) ; Wang, Qiufeng(qfwang@igsnrr.ac.cn)
英文摘要	China is currently undergoing a massive socio-economic transformation, and has implemented a series of emission reduction measures to control air pollution. The response of atmospheric deposition to emission reduction measures provides direct evidence for the efficiency of environmental policies. Here, we consistently measured SO42-, NO3, and NH4+ concentrations in rainfall in 43 typical Chinese ecosystems from 2013 to 2018 to reveal their spatiotemporal dynamics and the factors influencing them. The results showed that wet acid deposition (defined as (SO42-)-S-2 + NO3) in China exhibited an overall decline throughout 2013-2018, mostly due to decreased SO42- deposition. Despite evidence of a decline in NOX emissions in recent years, wet NO3 deposition in Chinese terrestrial ecosystems showed no significant trends during 2013-2018, implying a hysteresis response of wet NO3 deposition to emission reductions. The potential reasons for this response include a lack of evaluation in natural NOX emissions (e.g. NOX emissions from soil), large variations in wet scavenging, increased atmospheric oxidation capacity, which improves the conversion efficiency of NOX to HNO3, and higher NH3 emission levels to enhance the conversion of HNO3 to nitrate. Wet NH4+ deposition exhibited a relatively stable trend in recent years, which is consistent with the NH3 emissions in China. Energy consumption (especially coal combustion) and traffic can explain approximately 76% of the spatial variation in acid deposition. Our results demonstrate that controlling atmospheric SO2 emissions over recent decades has been effective in China, whereas N deposition in China requires more attention. Further, simultaneous control of NOX and NH3 emissions should be emphasized in the future to reduce acid deposition and the associated ecological risks.
资助项目	Chinese Academy of Sciences Strategic Priority Research Program[XDA19020302] ; Nature Science Foundation of China[31872690] ; Nature Science Foundation of China[31988102] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK060602] ; National Postdoctoral Program for Innovative Talents[BX20180300] ; Postdoctoral Science Foundation of China[2019M650829]
WOS关键词	ATMOSPHERIC NITROGEN DEPOSITION ; LONG-TERM TRENDS ; ACID DEPOSITION ; SULFUR DEPOSITION ; SOIL ; ACIDIFICATION ; IMPACT ; SO2 ; PRECIPITATION ; CHEMISTRY
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000668859400002
资助机构	Chinese Academy of Sciences Strategic Priority Research Program ; Nature Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Postdoctoral Program for Innovative Talents ; Postdoctoral Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163775]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhu, Jianxing; Wang, Qiufeng
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.Chinese Acad Sci, Res Stn Changbai Mt Forest Ecosyst, Antu 133613, Peoples R China 4.Northeast Normal Univ, Key Lab Vegetat Ecol, Minist Educ, Changchun, Peoples R China
推荐引用方式 GB/T 7714	Xi, Yue,Zhu, Jianxing,Zhang, Qiongyu,et al. Hysteresis response of wet nitrate deposition to emission reduction in Chinese terrestrial ecosystems[J]. ATMOSPHERIC ENVIRONMENT,2021,260:10.
APA	Xi, Yue,Zhu, Jianxing,Zhang, Qiongyu,Dai, Guanhua,He, Nianpeng,&Wang, Qiufeng.(2021).Hysteresis response of wet nitrate deposition to emission reduction in Chinese terrestrial ecosystems.ATMOSPHERIC ENVIRONMENT,260,10.
MLA	Xi, Yue,et al."Hysteresis response of wet nitrate deposition to emission reduction in Chinese terrestrial ecosystems".ATMOSPHERIC ENVIRONMENT 260(2021):10.