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题名: Evaluation on thermal stability of embankments with different strikes in permafrost regions
作者: Chou Ya-ling ; Sheng Yu ; Wei Zhen-ming
刊名: COLD REGIONS SCIENCE AND TECHNOLOGY
出版日期: 2009
卷号: 58, 期号:3, 页码:151-157
关键词: Permafrost ; Thermal stability ; Permafrost table ; Numerical analysis ; Embankment strike
学科分类: Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
英文摘要: Five soil samples collected from shooting ranges in 1998 were stored under a closed condition for 5 years. In addition to SEM and XRD investigations, the total organic carbon content (TOC), inorganic carbon content (TIC), delta C-13 and delta O-18 of carbonates and delta C-13 of plant remains were analyzed. The concentrations of total carbon contents, the sum of TOC and TIC, remained the same within the 5 years storage, whereas the TOC and TIC contents decreased and increased, respectively. The TIC increase is associated with a decreased TOC, suggesting a conversion of organic carbon into inorganic carbon. Such a conversion is evidenced by the presence of primary lead carbonates and carbon isotopic composition of lead carbonates. It can be concluded that soil organic matters play an important role in the process of bullets weathering and controls migration of the elevated lead in the soil.
收录类别: SCI
所属项目名称: Knowledge Innovation Program of the Chinese Academy of Sciences [KZCXI-SW-04]; Doctor Fund of Lanzhou University of Technology [BS04200905]
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.lig.ac.cn/handle/132962/2078
Appears in Collections:油气地球化学研究室_期刊论文

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Chou Ya-ling; Sheng Yu; Wei Zhen-ming.Evaluation on thermal stability of embankments with different strikes in permafrost regions,COLD REGIONS SCIENCE AND TECHNOLOGY,2009,58(3):151-157
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