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| DOI | 10.1016/j.scitotenv.2024.171540 |
| The impact of global climate changes on trace and rare earth elements mobilization in emerging periglacial terrains: Insights from western shore of Admiralty Bay (King George Island, Antarctic) | |
| 发表日期 | 2024 |
| ISSN | 0048-9697 |
| EISSN | 1879-1026 |
| 起始页码 | 926 |
| 卷号 | 926 |
| 英文摘要 | In the rapidly changing climate, the biogeochemical behaviours of trace elements and Rare Earth Elements (REEs) in emerging periglacial environments assumes profound importance. This study provides pivotal insights into this dynamic by investigating the Antarctic's response to global climate change. The bedrock of King George Island is rich in REEs, with the presence of trace metals (TEs), with the highest concentrations of metals found in ornithogenic soil (EREE 84.01-85.53 mg center dot kg- 1 dry weight). REEs in the studied soil, found mainly in igneous rocks, as is indicated by the positive correlation of these elements with sodium and calcium. The TEs released as a result of weathering are leached by water flowing down local watercourses to Admiralty Bay, as indicated by the decreasing results of EREE = 11.59 mu g center dot dm-3 in watercourse water, EREE = 1.62 mu g center dot dm-3 in watercourse pools and EREE = 0.66 mu g center dot dm-3 in the water of Admiralty Bay at the outlet of the watercourse. Water originating from the melting of snow on the glacier also carried REEs (EREE = 0.14 mu g center dot dm-3), a fact which suggest the further influx of these elements from atmospheric deposition. The Prasiola crispa turned out to be the most susceptible to the accumulation of REEs (E 80.73 +/- 5.05 mu g g- 1) and TEs, with the exception of chromium and zinc, whose concentrations were found to be at their highest in Deschampsia antarctica. In Usnea antarctica, Xanthoria candelaria, and Ceratodon purpureus and Politrichastrum alpinum, a dominant role in the accumulation of REEs was played by HREEs. The determined enrichment factor (EF) indicates that the soil cover is a source of REEs (EFAlgae for FREE = 5.07; EFLichen for FREE = 6.65; EFBryophyta for FREE = 5.04; EFVascular for FREE = 4.38), while Ni, As and Pb accumulated in plants may originate from other sources than the soil. |
| 英文关键词 | Rare earth elements; REE Trace metals; TE Global climate change Newly formed periglacial environment Antarctic flora |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:001218041300001 |
| 来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/291470 |
| 作者单位 | Fahrenheit Universities; Medical University Gdansk; University of Warmia & Mazury; Fahrenheit Universities; University of Gdansk; Institute of Meteorology & Water Management |
| 推荐引用方式 GB/T 7714 | . The impact of global climate changes on trace and rare earth elements mobilization in emerging periglacial terrains: Insights from western shore of Admiralty Bay (King George Island, Antarctic)[J],2024,926. |
| APA | (2024).The impact of global climate changes on trace and rare earth elements mobilization in emerging periglacial terrains: Insights from western shore of Admiralty Bay (King George Island, Antarctic).SCIENCE OF THE TOTAL ENVIRONMENT,926. |
| MLA | "The impact of global climate changes on trace and rare earth elements mobilization in emerging periglacial terrains: Insights from western shore of Admiralty Bay (King George Island, Antarctic)".SCIENCE OF THE TOTAL ENVIRONMENT 926(2024). |
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