A historical record of trace metal deposition in northeastern Qinghai-Tibetan Plateau for the last two centuries
文献类型：期刊论文
| 作者 | Li, Shanying; Sun, Weiwei; Chen, Rong; Zhang, Zhijie; Ning, Dongliang; Ni, Zhenyu |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2021 |
| 英文摘要 | Owing to rapid socio-economic development in China, trace metal emissions have increased and lakes even in remote areas have experienced marked changes in the last century. However, there are limited studies revealing long-term trends, anthropogenic fluxes, and spatial characteristics of trace metals in lakes. In this study, we present a geochemical record from Lake Qinghai in the northeastern Qinghai-Tibetan Plateau and reconstruct trace metal pollution history during the last two centuries. The lacustrine sediment core was dated by Cs-137 and Pb-210, and sediments deposited prior to the 1850s were selected as the pre-industrial background. Factor analysis and enrichment factor indicated Cr, Cu, and Ni generally originated from natural sources, while Cd, Pb, and Zn have been influenced by human contamination since the mid-1980s. The anthropogenic Cd mainly derived from non-ferrous metal smelting in Gansu Province, and fluxes to Lake Qinghai sharply increased after the mid-1980s. The metal reconstruction is similar to other lake sediment records from China and corresponds well with rapid economic development in China. The spatial pattern of anthropogenic Cd fluxes to lakes is primarily attributed to regional industrial emission, phosphate fertilizers, and manure applied in agriculture. |
| 源URL | [http://159.226.73.51/handle/332005/20335]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Li, Shanying,Sun, Weiwei,Chen, Rong,et al. A historical record of trace metal deposition in northeastern Qinghai-Tibetan Plateau for the last two centuries[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021. |
| APA | Li, Shanying,Sun, Weiwei,Chen, Rong,Zhang, Zhijie,Ning, Dongliang,&Ni, Zhenyu.(2021).A historical record of trace metal deposition in northeastern Qinghai-Tibetan Plateau for the last two centuries.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH. |
| MLA | Li, Shanying,et al."A historical record of trace metal deposition in northeastern Qinghai-Tibetan Plateau for the last two centuries".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021). |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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