气候变化领域集成服务门户(CCPortal): Ice-core based assessment of nitrogen deposition in the central Tibetan Plateau over the last millennium

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DOI	10.1016/j.scitotenv.2021.152692
	Ice-core based assessment of nitrogen deposition in the central Tibetan Plateau over the last millennium
	Zou, Xiang; Hou, Shugui; Wu, Shuangye; Pang, Hongxi; Liu, Ke; Zhang, Wangbin; Yu, Jinhai; Song, Jing; Huang, Renhui; Liu, Yaping
通讯作者	Hou, SG (通讯作者)，Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China.
发表日期	2022
ISSN	0048-9697
EISSN	1879-1026
卷号	814
英文摘要	Atmospheric nitrogen deposition is a unique source of bioavailable nitrogen for ecosystems in remote regions, and has vital impacts on ecological processes. Understanding variations of atmospheric nitrogen deposition in these regions remains challenging due to a lack of observations. Ice cores contain records of nitrogen species of nitrate (NO3-) and ammonium(NH4+), hence provide valuable long-termdata to study past variations of atmospheric nitrogen deposition. In this study, we present an annually resolved record of NH4+ and NO3- over the past millennium, derived from the Zangser Kangri (ZK) ice core in the central Tibetan Plateau. The concentration peaks of NH4+ and NO3- coincide with those of Ca2+ (a dust tracer), indicating that variation of nitrogen species in the ZK ice core is largely driven by dust activities. An EOF analysis for all chemical species (Cl-, SO42-, NO3-, Na+, NH4+, K+, Mg2+, Ca2+) reveals significant but separate loadings of NH4+ and NO3- on EOF 2, suggesting an additional source of nitrogen, likely from biogenic emissions of terrestrial ecosystems. Over the past millennium, the EOF 2 series has relatively high values around 1300 CE and 1600 CE, and has increased significantly since the Industrial Revolution. These variations are likely driven by temperature-dependent biogenic emissions on the Tibetan Plateau. Analyses of seasonal air mass backward trajectories and wind fields find that the chemical concentrations in the ZK ice core are mostly influenced by the westerly, but South Asia summer monsoon plays an important role in the transport of nitrogen species generated from biogenic emissions. This is further confirmed by the significant correlation between EOF 2 series and the South Asian summer monsoon index. This study provides new insight into the preindustrial sources, natural variabilities and major drivers of nitrogen deposition on the Tibetan Plateau.
关键词	ATMOSPHERIC AMMONIA ALPINE GRASSLAND GLACIER RECORD PRECIPITATION ECOSYSTEMS POLLUTANTS EMISSIONS HISTORY NITRATE
英文关键词	Ice core; Nitrogen species; Tibetan Plateau; Atmospheric deposition; Climate variability
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000743212500006
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254265
作者单位	[Zou, Xiang; Hou, Shugui; Pang, Hongxi; Liu, Ke; Zhang, Wangbin; Yu, Jinhai; Song, Jing; Huang, Renhui] Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China; [Hou, Shugui] Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 200240, Peoples R China; [Wu, Shuangye] Univ Dayton, Dept Geol & Environm Geosci, Dayton, OH 45469 USA; [Liu, Yaping] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zou, Xiang,Hou, Shugui,Wu, Shuangye,et al. Ice-core based assessment of nitrogen deposition in the central Tibetan Plateau over the last millennium[J]. 中国科学院西北生态环境资源研究院,2022,814.
APA	Zou, Xiang.,Hou, Shugui.,Wu, Shuangye.,Pang, Hongxi.,Liu, Ke.,...&Liu, Yaping.(2022).Ice-core based assessment of nitrogen deposition in the central Tibetan Plateau over the last millennium.SCIENCE OF THE TOTAL ENVIRONMENT,814.
MLA	Zou, Xiang,et al."Ice-core based assessment of nitrogen deposition in the central Tibetan Plateau over the last millennium".SCIENCE OF THE TOTAL ENVIRONMENT 814(2022).