Spatiotemporal variability, source apportionment, and acid-neutralizing capacity of atmospheric wet base-cation deposition in China
文献类型：期刊论文
| 作者 | Zhang, Qiongyu1,2; Wang, Qiufeng1,2; Zhu, Jianxing1; Xu, Li1; Chen, Zhi1,2; Xiao, Jingfeng3; He, Nianpeng1,2,4,5 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2020-07-01 |
| 卷号 | 262页码:8 |
| 关键词 | Seasonal dynamics Inter-annual variation Spatial patterns Influencing factors neutralization Acid deposition |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2020.114335 |
| 通讯作者 | Wang, Qiufeng(qfwang@igsnrr.ac.cn) |
| 英文摘要 | Atmospheric wet deposition of base cations (BCs) plays a significant role in providing plant nutrients and buffering acidification. However, the temporal dynamic of wet BC deposition in China during the past two decades remain unclear. Here, we used long-term monitoring and literature data since 2000 to assess the temporal dynamics (seasonal and inter-annual variation), spatial patterns, main influencing factors, source apportionment, and capacity to neutralize the acidity of wet BC depositions at site, regional, and national scales. The results showed that total wet deposition of BCs was, on average, 2.12 keq ha(-1) yr(-1), where Ca2+ accounted for 65.57% of the total deposition, followed by Na+ (13.21%), Mg2+ (13.68%), and K+ (7.55%). Qinghai-Tibet had significantly lower BC deposition fluxes than northern, southern, and central China, as well as Inner Mongolia. Exchangeable BCs in soil, PM10 in the atmosphere, energy consumption, and cement production are significantly related to wet BC deposition, which account for 79.17% of the variation in the spatial deposition of BC. Influenced by the strategies to control acid rain and particulate matter in China, interannual variations showed a stabilization trend after a continuous decline from 2000 to 2017, which can be explained by inter-annual changes in PM10, energy consumption and cement production. Statistical methods confirmed that 45.95% of wet BC deposition was derived from crustal contributions, 27.78% from sea salt sources, and 26.27% from anthropogenic sources. Furthermore, we found that wet deposition of BCs neutralized 84.85% of the acidity due to NO3 and SO42- depositions. Under the emissions reduction strategy, there has been a decrease in the deposition of BC. However, SO42- and NO3- depositions decreased faster than BC deposition, which buffered a higher proportion of acidic depositions. Our findings contribute to an improved understanding of wet BC deposition in China, an evaluation of their capacity to neutralize acidity, and important parameters for acidification models. (C) 2020 Elsevier Ltd. All rights reserved. |
| WOS关键词 | LONG-TERM TRENDS ; NITROGEN DEPOSITION ; TIBETAN PLATEAU ; SEA-SALT ; PRECIPITATION ; EMISSIONS ; ACIDIFICATION ; CATCHMENTS ; CHEMISTRY ; SODIUM |
| 资助项目 | Nature Science Foundation of China[31872690] ; Nature Science Foundation of China[31570471] ; Nature Science Foundation of China[31988102] ; Chinese Academy of Sciences Strategic Priority Research Program[XDA19020302] ; National Key R&D Project of China[2017YFA0604803] ; National Postdoctoral Program for Innovative Talents[BX20180300] ; Postdoctoral Science Foundation of China[2019M650829] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000533524300123 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Nature Science Foundation of China ; Chinese Academy of Sciences Strategic Priority Research Program ; National Key R&D Project of China ; National Postdoctoral Program for Innovative Talents ; Postdoctoral Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/159612]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Qiufeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Univ New Hampshire, Earth Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA 4.Northeast Normal Univ, Inst Grassland Sci, Changchun 130024, Peoples R China 5.Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Qiongyu,Wang, Qiufeng,Zhu, Jianxing,et al. Spatiotemporal variability, source apportionment, and acid-neutralizing capacity of atmospheric wet base-cation deposition in China[J]. ENVIRONMENTAL POLLUTION,2020,262:8. |
| APA | Zhang, Qiongyu.,Wang, Qiufeng.,Zhu, Jianxing.,Xu, Li.,Chen, Zhi.,...&He, Nianpeng.(2020).Spatiotemporal variability, source apportionment, and acid-neutralizing capacity of atmospheric wet base-cation deposition in China.ENVIRONMENTAL POLLUTION,262,8. |
| MLA | Zhang, Qiongyu,et al."Spatiotemporal variability, source apportionment, and acid-neutralizing capacity of atmospheric wet base-cation deposition in China".ENVIRONMENTAL POLLUTION 262(2020):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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