QQ客服 官方微博 反馈留言

	Assessment of global mercury deposition through litterfall
	Wang, Xun1,2; Bao, Zhengduo3,4; Lin, Che-Jen1,3,4; Yuan, Wei1,2; Feng, Xinbin1
刊名	Environmental science & technology
	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
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000381654600016
内容类型	期刊论文
URI标识	http://www.corc.org.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.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。