IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Lead distribution and possible sources along vertical zone spectrum of typical ecosystems in the Gongga Mountain, eastern Tibetan Plateau
Luo, Ji1,2; Tang, Ronggui1,2,3; Sun, Shouqin1,2; Yang, Dandan1,2,3; She, Jia1,2,3; Yang, Peijun4
Corresponding AuthorRonggui,Tang
2015
Source PublicationATMOSPHERIC ENVIRONMENT
ISSN1352-2310
EISSN1873-2844
Volume115Pages:132-140
SubtypeArticle
AbstractA total of 383 samples from soil, plant, litterfall and precipitation in four typical ecosystems of Gongga Mountain were collected. Pb concentrations of samples were measured and analyzed. The results showed mean Pb concentrations in different soil layers were in the order of O > A > C, and mean Pb concentrations of the aboveground parts of plant was 3.60 +/- 2.54 mg kg(-1), with the minimum value of 0.77 mg kg(-1) and the maximum value of 10.90 mg kg(-1). Pb concentrations in soil's O-horizon and A-horizon showed a downward trend with increasing elevation (the determination coefficient R-2 was 0.9478, 0.7918 and 0.9759 respectively). In contrast to other soil layers, the level of Pb concentrations in O-horizon (incomplete decomposition) was significantly high. Litterfall decomposition, atmospheric deposition and the unique climate could be main factors leading high Pb accumulation in soil's O-horizon. What's more, significant correlation (R-2 = 0.8126, P < 0.05) was found between Pb concentrations in fine roots and soil's A-horizon confirms that fine roots could adsorb and accumulate Pb materials in soil. In general, the fact that Pb inputted into the typical ecosystems in the Gongga Mountain via long-range transportation and deposition of the atmosphere from external Pb sources could be confirmed by the HYSPLIT model and the ratio of C-Pb/C-Al in plants (leaves) and C-Pb/C-Al in litterfall. The mining activities and increasing anthropogenic activities (tourism development) could be main sources of Pb in this area. In order to better understand Pb sources and eco-risks of these typical ecosystems, litterfall decomposition characteristics, biomass of productivity of forest ecosystem, Pb isotopic tracing among air mass, twigs, leaves, litterfall and O-horizon soil in this vertical belt should also be taken into consideration. (C) 2015 Elsevier Ltd. All rights reserved.
KeywordHysplit Model Atmospheric Deposition Pollution Sources Bio-indicator Root Accumulation
Subject Area环境学 ; 大气环境学 ; 土壤环境学
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1016/j.atmosenv.2015.05.022
URL查看原文
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
Indexed BySCI
WOS KeywordFOREST SOILS ; HEAVY-METALS ; BOREAL FOREST ; CONTAMINATED SITES ; PB ; CD ; AEROSOL ; CHINA ; ZN ; BANGLADESH
Language英语
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WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000358809600015
Funding OrganizationKnowledge Innovation Project of the Chinese Academy of Science(KZCX2-EW-309) ; National Natural Science Foundation of China(41471416 ; 41272200 ; 40871042)
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9036
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Shaanxi Univ Technol, Hanzhong, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Luo, Ji,Tang, Ronggui,Sun, Shouqin,et al. Lead distribution and possible sources along vertical zone spectrum of typical ecosystems in the Gongga Mountain, eastern Tibetan Plateau[J]. ATMOSPHERIC ENVIRONMENT,2015,115:132-140.
APA Luo, Ji,Tang, Ronggui,Sun, Shouqin,Yang, Dandan,She, Jia,&Yang, Peijun.(2015).Lead distribution and possible sources along vertical zone spectrum of typical ecosystems in the Gongga Mountain, eastern Tibetan Plateau.ATMOSPHERIC ENVIRONMENT,115,132-140.
MLA Luo, Ji,et al."Lead distribution and possible sources along vertical zone spectrum of typical ecosystems in the Gongga Mountain, eastern Tibetan Plateau".ATMOSPHERIC ENVIRONMENT 115(2015):132-140.
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