Assessment of global mercury deposition through litterfall
文献类型：期刊论文
| 作者 | Wang, Xun1,2; Bao, Zhengduo3,4; Lin, Che-Jen1,3,4; Yuan, Wei1,2; Feng, Xinbin1 |
| 刊名 | Environmental science & technology
 |
| 出版日期 | 2016-08-16 |
| 卷号 | 50期号:16页码:8548-8557 |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.5b06351 |
| 通讯作者 | Lin, che-jen(jerry.lin@lamar.edu) ; Feng, xinbin(fengxinbin@vip.skleg.cn) |
| 英文摘要 | There is a large uncertainty in the estimate of global dry deposition of atmospheric mercury (hg). hg deposition through litterfall represents an important input to terrestrial forest ecosystems via cumulative uptake of atmospheric hg (most hg-0) to foliage. in this study, we estimate the quantity of global hg deposition through litterfall using statistical modeling (monte carlo simulation) of published data sets of litterfall biomass production, tree density, and hg concentration in litter samples. on the basis of the model results, the global annual hg deposition through litterfall is estimated to be 1180 +/- 710 mg yr(-1), more than two times greater than the estimate by geos-chem. spatial distribution of hg deposition through litterfall suggests that deposition flux decreases spatially from tropical to temperate and boreal regions. approximately 70% of global hg-0 dry deposition occurs in the tropical and subtropical regions. a major source of uncertainty in this study is the heterogeneous geospatial distribution of available data. more observational data in regions (southeast asia, africa, and south america) where few data sets exist will greatly improve the accuracy of the current estimate. given that the quantity of global hg deposition via litterfall is typically 2-6 times higher than hg-0 evasion from forest floor, global forest ecosystems represent a strong hg-0 sink. |
| WOS关键词 | REMOTE UPLAND FOREST ; ACADIA NATIONAL-PARK ; ATMOSPHERIC MERCURY ; DRY DEPOSITION ; SOUTHWESTERN CHINA ; ELEMENTAL MERCURY ; METHYL MERCURY ; ISOTOPE SIGNATURES ; TROPICAL FORESTS ; ATLANTIC FOREST |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000381654600016 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375113 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Lin, Che-Jen; Feng, Xinbin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lamar Univ, Ctr Adv Water & Air Qual, Beaumont, TX 77710 USA 4.Lamar Univ, Dept Civil & Environm Engn, Beaumont, TX 77710 USA |
| 推荐引用方式 GB/T 7714 | Wang, Xun,Bao, Zhengduo,Lin, Che-Jen,et al. Assessment of global mercury deposition through litterfall[J]. Environmental science & technology,2016,50(16):8548-8557. |
| APA | Wang, Xun,Bao, Zhengduo,Lin, Che-Jen,Yuan, Wei,&Feng, Xinbin.(2016).Assessment of global mercury deposition through litterfall.Environmental science & technology,50(16),8548-8557. |
| MLA | Wang, Xun,et al."Assessment of global mercury deposition through litterfall".Environmental science & technology 50.16(2016):8548-8557. |
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来源：中国科学院大学
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