Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet
文献类型:期刊论文
作者 | Wang, XP (Wang, Xiaoping)1,2; Gong, P (Gong, Ping)1,2; Yao, TD (Yao, Tandong)1,2; Xue, YG (Xue, Yonggang)1,2,3 |
刊名 | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH |
出版日期 | 2018-12-01 |
卷号 | 40期号:5 特刊:SI页码:1941-1953 |
ISSN号 | 0269-4042 |
关键词 | Persistent Organic Pollutants Polychlorinated-biphenyls Organochlorine Pesticides Source Apportionment Atmospheric Deposition Spatial-distribution Western Sichuan Surface Soil Black Carbon Pahs |
DOI | 10.1007/s10653-017-9969-7 |
英文摘要 | PAHs could be transported to Tibetan Plateau in accompany with atmospheric circulation. The forest regions were found be an important sink for PAHs, while their distributions and migrations in forest are still uncertain. In this study, soil profile samples were collected in southeastern Tibet and the concentrations, distributions, and migration of PAHs in forest region were investigated. The PAHs levels in the forest soils were at the low end of remote sites, ranged from 27.4 to 120.3 ng g(-1) on a dry weight based. Due to low ambient temperature and high organic carbon content, enrichment of PAHs was found in higher altitude on north side. According to the soil profiles, the vertical distributions of PAHs in organic layers were mainly influenced by pedogenesis, while the vertical distributions in mineral layers were dominated by downward leaching effect. Enrich factor (EF) of PAHs was estimated, and the values in organic layers were positively correlated with the octanol-air partition coefficients (K-OA), but EFs in mineral layers decreased with the K-OA values. PAHs in the surface soils on the north side of forest were relatively stable, while the migration of PAHs on the south sides and other clearing sites was more active. The leaching rates of PAHs in clearing site ranged between 1.42 and 29.3%. The results from this study are valuable on the characterization of PAHs in Tibetan Plateau. |
学科主题 | 地理学 |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000452158700019 |
源URL | [http://ir.itpcas.ac.cn/handle/131C11/8525] |
专题 | 青藏高原研究所_图书馆 |
通讯作者 | Wang, XP (Wang, Xiaoping) |
作者单位 | 1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China; 3.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, SKLLQG, Inst Earth Environm, Xian 710061, Peoples R China. |
推荐引用方式 GB/T 7714 | Wang, XP ,Gong, P ,Yao, TD ,et al. Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2018,40(5 特刊:SI):1941-1953. |
APA | Wang, XP ,Gong, P ,Yao, TD ,&Xue, YG .(2018).Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,40(5 特刊:SI),1941-1953. |
MLA | Wang, XP ,et al."Distribution and vertical migration of polycyclic aromatic hydrocarbons in forest soil pits of southeastern Tibet".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 40.5 特刊:SI(2018):1941-1953. |
入库方式: OAI收割
来源:青藏高原研究所
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