Distribution and biotransfer of potentially toxic elements in a terrestrial ecosystem from an abandoned realgar mine
文献类型：期刊论文
| 作者 | Yang, Fen; Wei, Chaoyang |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 155页码:818-831 |
| 关键词 | Potentially toxic elements Terrestrial food chain Bioaccumulation Trophic transfer |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/j.jes.2024.09.019 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The present study was conducted to examine the trophic transfer of potentially toxic elements (PTEs) in a closed arsenic mine. Eight PTEs in a soil-plant-leaf litter-earthworm-top predators (free-range local chicken and wild passerine bird) system were analyzed for nitrogen and carbon stable isotopes, PTE concentrations, bioaccumulation factors (BAFs), and transfer factors (TFs). The PTE concentrations in soils from mining areas were generally higher than a adjacent controlled area, with As and Cd in soils showing the prominent compared to other six PTEs, as seen for the indices of geo-accumulation index (I-geo), pollution index (PI) and potential ecological risk index (RI). The relatively high BAF and TF values suggested a distinct biotransfer of PTEs along the soil-plant-leaf litter-earthworm system. BAFs were mostly < 1 except in earthworms, indicating that earthworms had a strong capacity to take up these metals. The TFs varied both among PTEs and organism's species, e.g., the transfer capacities of As in Pteris uittata and Pteris cretica, Cd in Miscanthus sinensis, and Pb, Cr and Mn in moss were the highest. For local free-range chicken and wild passerine bird, the concentrations of PTEs were higher in gastric contents and feather than in internal tissue (stomach, liver and heart), with lower contents in muscle and egg. Bioaccumulation of PTEs generally decreased from decomposer earthworms, to primary producer plants, to top predator, indicating a potential bio-dilution tendency in higher trophic levels in the terrestrial food chain. (c) 2025 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| URL标识 | 查看原文 |
| WOS关键词 | HEAVY-METALS CONTAMINATION ; CHICKEN MEAT ; FOOD-CHAIN ; ACCUMULATION ; AREA ; SOIL ; BIOACCUMULATION ; EARTHWORMS ; POLLUTION ; CADMIUM |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001439828400001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213196]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Yang, Fen |
| 作者单位 | Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Fen,Wei, Chaoyang. Distribution and biotransfer of potentially toxic elements in a terrestrial ecosystem from an abandoned realgar mine[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2025,155:818-831. |
| APA | Yang, Fen,&Wei, Chaoyang.(2025).Distribution and biotransfer of potentially toxic elements in a terrestrial ecosystem from an abandoned realgar mine.JOURNAL OF ENVIRONMENTAL SCIENCES,155,818-831. |
| MLA | Yang, Fen,et al."Distribution and biotransfer of potentially toxic elements in a terrestrial ecosystem from an abandoned realgar mine".JOURNAL OF ENVIRONMENTAL SCIENCES 155(2025):818-831. |
入库方式： OAI收割
来源：地理科学与资源研究所
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