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	Enhanced accumulation and storage of mercury on subtropical evergreen forest floor: implications on mercury budget in global forest ecosystems
	Wang, Xun1,2; Lin, Che-Jen1,3,4; Lu, Zhiyun5; Zhang, Hui1,2; Zhang, Yiping5,6; Feng, Xinbin1,2
刊名	Journal of geophysical research-biogeosciences
	2016-08-01
卷号	121期号:8页码:2096-2109
ISSN号	2169-8953
DOI	10.1002/2016jg003446
通讯作者	Lin, che-jen(fengxinbin@vip.skleg.cn) ; Feng, xinbin(jerry.lin@lamar.edu)
英文摘要	Forest ecosystems play an important role in the global cycling of mercury (hg). in this study, we characterized the hg cycling at a remote evergreen broadleaf (eb) forest site in southwest china (mount ailao). the annual hg input via litterfall is estimated to be 75.0 +/- 24.2 mu gm(-2) yr(-1) at mount ailao. such a quantity is up to 1 order of magnitude greater than those observed at remote temperate/boreal (t/b) forest sites. production of litter biomass is found to be the most influential factor causing the high hg input to the eb forest. given their large areal coverage, hg deposition through litterfall in eb forests is appropriately 9 +/- 5 mg yr(-1) in china and 1086 +/- 775mg yr(-1) globally. the observed wet hg deposition at mount ailao is 4.9 +/- 4.5 mu gm(-2) yr(-1), falling in the lower range of those observed at 49 t/b forest sites in north america and europe. given the data, the hg deposition flux through litterfall is approximately 15 times higher than the wet hg deposition at mount ailao. steady hg accumulation in decomposing litter biomass and hg uptake from the environment were observed during 25 months of litter decomposition. the size of the hg pool in the organic horizon of eb forest floors is estimated to be up to 2-10 times the typical pool size in t/b forests. this study highlights the importance of eb forest ecosystems in global hg cycling, which requires further assessment when more data become available in tropical forests.
WOS关键词	LEAF-LITTER DECOMPOSITION ; REMOTE UPLAND FOREST ; ACADIA NATIONAL-PARK ; SOIL ORGANIC-MATTER ; ATMOSPHERIC MERCURY ; SOUTHWESTERN CHINA ; DRY DEPOSITION ; METHYL MERCURY ; ATLANTIC FOREST ; REDUCED SULFUR
WOS研究方向	Environmental Sciences & Ecology ; Geology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000385712400006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374803
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, Peoples R China 2.Univ Chinese Acad Sci, Beijing, 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 5.Natl Forest Ecosyst Res Stn, Ningbo, Yunnan, Peoples R China 6.Univ Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xun,Lin, Che-Jen,Lu, Zhiyun,et al. Enhanced accumulation and storage of mercury on subtropical evergreen forest floor: implications on mercury budget in global forest ecosystems[J]. Journal of geophysical research-biogeosciences,2016,121(8):2096-2109.
APA	Wang, Xun,Lin, Che-Jen,Lu, Zhiyun,Zhang, Hui,Zhang, Yiping,&Feng, Xinbin.(2016).Enhanced accumulation and storage of mercury on subtropical evergreen forest floor: implications on mercury budget in global forest ecosystems.Journal of geophysical research-biogeosciences,121(8),2096-2109.
MLA	Wang, Xun,et al."Enhanced accumulation and storage of mercury on subtropical evergreen forest floor: implications on mercury budget in global forest ecosystems".Journal of geophysical research-biogeosciences 121.8(2016):2096-2109.

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