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学科主题: 地理学::自然地理学
题名: Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau
作者: Chen, F (Chen, Feng)1, 2; Feng, JL (Feng, Jin-Liang)1; Hu, HP (Hu, Hai-Ping)1, 2
通讯作者: Feng, JL
刊名: HYDROBIOLOGIA
发表日期: 2016
DOI: 10.1007/s10750-015-2634-1
卷: 771, 期:1, 页:239-254
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: Fossil shells of the aquatic mollusk Radix are common in the exposed sediments of lake terraces on the Tibetan Plateau. However, the living environment of Radix, and the geochemical characteristics of its shells, is unclear. Here, we report the results of an investigation of the occurrence of modern Radix in lakes of the southeastern and central Tibetan Plateau, as well as measurements of various geochemical characteristics of the shells. The results indicate that the nutritional status of the lake waters is the main limiting factor for the survival of Radix in these lakes. The Sr/Ca ratio of the Radix shells is significantly positively correlated with both the Sr/Ca ratio and the conductivity of the lake water. Initially, Kd(Sr) decreases rapidly with low values of Sr/Ca-water; however, in the case of Sr/Ca-water values above 0.0076, Kd(Sr) exhibits only a small range of variation. The delta C-13(shell) values are controlled by the delta C-13 of lake water dissolved inorganic carbon (DIC). In addition, the contribution of DIC of organic origin to the Radix shells increases when the lake water is deficient in DIC of inorganic origin. The delta O-18 values of the Radix shells provide useful information about the isotopic composition of the ambient waters.
语种: 英语
WOS记录号: WOS:10.1007/s10750-015-2634-1
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内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7712
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Bldg 3,16th Lincui Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Chen, F ,Feng, JL ,Hu, HP . Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau[J]. HYDROBIOLOGIA,2016,771(1):239-254.
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文件名: V.771(1) 239-254 2016.pdf
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