Tracing controlling factors of riverine chemistry in a headwater tributary of the Yangtze River, China, inferred from geochemical and stable isotopic signatures
文献类型：期刊论文
| 作者 | Herath, Imali Kaushalya2,3,4; Wu, Sheng Jun4; Ma, Mao Hua4; Wang Jianli2; Chandrajith, Rohana1 |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 26期号:23页码:23899-23922 |
| 关键词 | Geochemical stoichiometry Stable isotopes Lithology Land use Riverine chemistry Jialing River Basin (JRB) |
| ISSN号 | 0944-1344 |
| DOI | 10.1007/s11356-019-05598-w |
| 通讯作者 | Herath, Imali Kaushalya(imalikaushalya@yahoo.com) ; Wu, Sheng Jun(wsj@cigit.ac.cn) |
| 英文摘要 | The Jialing River is the second largest headwater tributary of the Yangtze River in China, therefore, the river water has been contaminated and water quality is deteriorated. Hence, this study aims to find the maincontroling factors of riverine chemistry. 52 water samples were collected for the determination of major ions and environmental isotopes of delta O-18 and delta H-2. Stoichiometry of geochemical data with mixing end members and multivariate statistical analysis were employed with integrated GIS approach for data interpretations. The delta O-18 and delta H-2 of the Jialing River Basin (JRB) were used to define the origin of river water from meteoric water and waterin the spring season is affected by high evaporation and evaporates dissolution. The average TDS 301mg/L that is higher than the Yangtze River. Inthe JRB, 80% of the anion in water samples represented HCO3- (207mg/L) and SO42- (80mg/L) while 80% of the cations were accounted by Ca2+ (59.8mg/L) and Mg2+ (17.9mg/L). The water chemistry mainly derived from the water rock interaction. Piper plot indicated that Ca-Mg-HCO3- was the most dominant water type and most ions derived from carbonate weathering by H2SO4 and H2CO3. The stoichiometry results further confirmed carbonate weathering is dominant than silicate weathering. Evaporate ions were modified by anthropogenic sources. Agricultural inputs are higher than the industry and atmospheric inputs. Redundancy analysis showed that most contributive land-use type in explaining riverine chemistry was the cultivate land (62.6, 66.4, and 67.9%) at all buffer scales of 30, 20, and 10km, respectively. Forest and grasslands mostly correlate with Ca2+, Mg2+, Cl-, SO42-, EC, pH, and HCO3- while anthropogenic land-use types such as cultivated and construction lands correlate with Na+, K+, Cl-, and NO3-. These results revealed that the lithology of the basin mainly controlled the upstream water chemistry while downstream riverine chemistry was controlled by both lithology and anthropogenic inputs. Nevertheless, this study suggested that explicitly determining the controlling factors of riverine chemistry involves a complex process and combination of different chemical constituents and factors on river water. However, this study managed to provide useful information to further understanding of the geochemical process in JRB. |
| 资助项目 | National Natural Science Foundation of China[41571497] ; National Natural Science Foundation of China[51779241] ; National Natural Science Foundation of China[40971122] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000477958300060 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/8320]  |
| 专题 | 生态过程与重建研究中心 |
| 通讯作者 | Herath, Imali Kaushalya; Wu, Sheng Jun |
| 作者单位 | 1.Univ Peradeniya, Fac Sci, Dept Geol, Peradeniya, Sri Lanka 2.Southwest Univ, Sch Geog Sci, Chongqing, Peoples R China 3.Univ Sci & Technol, Hefei, Anhui, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Herath, Imali Kaushalya,Wu, Sheng Jun,Ma, Mao Hua,et al. Tracing controlling factors of riverine chemistry in a headwater tributary of the Yangtze River, China, inferred from geochemical and stable isotopic signatures[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2019,26(23):23899-23922. |
| APA | Herath, Imali Kaushalya,Wu, Sheng Jun,Ma, Mao Hua,Wang Jianli,&Chandrajith, Rohana.(2019).Tracing controlling factors of riverine chemistry in a headwater tributary of the Yangtze River, China, inferred from geochemical and stable isotopic signatures.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(23),23899-23922. |
| MLA | Herath, Imali Kaushalya,et al."Tracing controlling factors of riverine chemistry in a headwater tributary of the Yangtze River, China, inferred from geochemical and stable isotopic signatures".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.23(2019):23899-23922. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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