Distinct patterns of chemical weathering in the drainage basins of the Huanghe and Xijiang River, China: Evidence from chemical and Sr-isotopic compositions | |
Bing Wang; Xin-Qing Lee; Hong-Lin Yuan; Hui Zhou; Hong-Guang Cheng; Jian-Zhong Cheng; Zhi-Hong Zhou; Ying Xing; Bin Fang; Li-Ke Zhang; Fang Yang | |
通讯作者 | Xin-Qing Lee |
2012 | |
发表期刊 | Journal of Asian Earth Sciences |
卷号 | 59期号:SI页码:219-230 |
摘要 | Aquatic geochemistry on watershed background helps elucidate the influence of natural processes and anthropogenic activities to the environment. The Sr-87/Sr-86 ratios and dissolved loads were measured in 35 water samples from the Huanghe and Xijiang River drainage basins. The dissolved loads and Sr-87/Sr-86 ratios differed considerably between the two drainage basins. The Sr-87/Sr-86 ratios of the Xijiang River are between 0.70856 and 0.70936, with an average of 0.70894, reflecting weathering of carbonate minerals as the dominant source and anthropogenic pollution as the secondary one, especially in the upper reach tributaries, while the Sr isotopic ratios in the Huanghe River range from 0.70986 to 0.71139 averaging 0.71118 that results primarily from evaporite dissolution. Precipitation contributes to 2.8% and 5.7% to the chemistry of the Xijiang and Huanghe River, respectively. Evaporite dissolution and silicate weathering account for 79.4% and 11.3%, respectively, in the Huanghe River while carbonate dissolution and silicate weathering account for 75.4% and 14.6%, respectively, in the Xijiang River. The chemical weathering rate is 107.6 t/km(2)/yr in the Xijiang River drainage basin, and 34.2 t/km(2)/yr in the Huanghe River drainage basin. The CO2 consumption budget is 305.2 x 10(9) mol/yr in the Xijiang River drainage basin, and 147.9 x 10(9) mol/yr in the Huanghe River drainage basin. |
学科领域 | 环境地球化学 |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.gyig.ac.cn/handle/352002/4920 |
专题 | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 |
通讯作者 | Xin-Qing Lee |
推荐引用方式 GB/T 7714 | Bing Wang,Xin-Qing Lee,Hong-Lin Yuan,et al. Distinct patterns of chemical weathering in the drainage basins of the Huanghe and Xijiang River, China: Evidence from chemical and Sr-isotopic compositions[J]. Journal of Asian Earth Sciences,2012,59(SI):219-230. |
APA | Bing Wang.,Xin-Qing Lee.,Hong-Lin Yuan.,Hui Zhou.,Hong-Guang Cheng.,...&Fang Yang.(2012).Distinct patterns of chemical weathering in the drainage basins of the Huanghe and Xijiang River, China: Evidence from chemical and Sr-isotopic compositions.Journal of Asian Earth Sciences,59(SI),219-230. |
MLA | Bing Wang,et al."Distinct patterns of chemical weathering in the drainage basins of the Huanghe and Xijiang River, China: Evidence from chemical and Sr-isotopic compositions".Journal of Asian Earth Sciences 59.SI(2012):219-230. |
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