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Major ion chemistry and dissolved inorganic carbon cycling in a human-disturbed mountainous river (the Luodingjiang River) of the Zhujiang (Pearl River), China

文献类型：期刊论文

作者Zhang, Shurong1; Lu, X. X.1; Sun, Huiguo2; Han, Jingtai2; Higgitt, David Laurence1
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2009-04-01
卷号407期号:8页码:2796-2807
ISSN号0048-9697
关键词Major ions Dissolved inorganic carbon Water chemistry Human impacts Stable carbon isotope Zhujiang (Pearl River)
DOI10.1016/j.scitotenv.2008.12.036
文献子类Article
英文摘要Major ion chemistry and dissolved inorganic carbon system (DIC, mainly HCO(3)(-) and gaseous CO(2)) in the Luodingjiang River, a mountainous tributary of the Zhujiang (Pearl River), China, were examined based on a seasonal and spatial sampling scheme in 2005. The diverse distribution of lithology and anthropogenic impacts in the river basin provided the basic idea to assess the effects of lithology vs. human activities on water chemistry and carbon biogeochemistry in river systems. Major ions showed great spatial variations, with higher concentrations of total dissolved solids (TDS) and DIC in the regions with carbonate rocks and elastic sedimentary rocks, while lower in the regions with metamorphic sandstones and schists as well as granites. pCO(2) at all sampling sites was oversaturated in June, ranging with a factor from 1.6 to 18.8 of the atmospheric concentration, reflecting the enhanced contribution from baseflow and interflow influx as well as in situ oxidation of organic matter. However, in April and December, undersaturated pCO(2) was found in some shallow, clean rivers in the upstream regions. PC of DIC has a narrow range from -9.07 to -13.59 parts per thousand, which was more depleted in the regions with metamorphic rocks and granites than in the carbonate regions. Seasonally, it was slightly more depleted in the dry season (December) than in the wet season (June). The results suggested that lithological variability had a dominant control on spatial variations of water chemistry and carbon geochemistry in river systems. Besides, anthropogenic activities, such as agricultural and urban activities and in-stream damming, as well as river physical properties, such as water depth and transparency, also indicated their impacts. The seasonal variations likely reflected the changes of hydrological regime, as well as metabolic processes in the river. (C) 2008 Elsevier B.V. All rights reserved.
WOS关键词ORGANIC-CARBON ; XIJIANG RIVER ; ISOTOPIC COMPOSITION ; SYSTEM ; FLUXES ; BASIN ; CATCHMENT ; DYNAMICS ; DIOXIDE ; CANADA
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000264922000035
资助机构National University of Singapore(R-109-000-086-646) ; National University of Singapore(R-109-000-086-646) ; National University of Singapore(R-109-000-086-646) ; National University of Singapore(R-109-000-086-646) ; National University of Singapore(R-109-000-086-646) ; National University of Singapore(R-109-000-086-646) ; National University of Singapore(R-109-000-086-646) ; National University of Singapore(R-109-000-086-646)
源URL[http://ir.iggcas.ac.cn/handle/132A11/71830]  
专题中国科学院地质与地球物理研究所
通讯作者Zhang, Shurong
作者单位1.Natl Univ Singapore, Dept Geog, Singapore 117570, Singapore
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Shurong,Lu, X. X.,Sun, Huiguo,et al. Major ion chemistry and dissolved inorganic carbon cycling in a human-disturbed mountainous river (the Luodingjiang River) of the Zhujiang (Pearl River), China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2009,407(8):2796-2807.
APA Zhang, Shurong,Lu, X. X.,Sun, Huiguo,Han, Jingtai,&Higgitt, David Laurence.(2009).Major ion chemistry and dissolved inorganic carbon cycling in a human-disturbed mountainous river (the Luodingjiang River) of the Zhujiang (Pearl River), China.SCIENCE OF THE TOTAL ENVIRONMENT,407(8),2796-2807.
MLA Zhang, Shurong,et al."Major ion chemistry and dissolved inorganic carbon cycling in a human-disturbed mountainous river (the Luodingjiang River) of the Zhujiang (Pearl River), China".SCIENCE OF THE TOTAL ENVIRONMENT 407.8(2009):2796-2807.

入库方式： OAI收割

来源：地质与地球物理研究所

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