Combining Tracking and Remote Sensing to Identify Critical Year-Round Site, Habitat Use and Migratory Connectivity of a Threatened Waterbird Species
文献类型：期刊论文
| 作者 | Batbayar, Nyambayar; Yi, Kunpeng ; Zhang, Junjian; Natsagdorj, Tseveenmyadag; Damba, Iderbat; Cao, Lei; Fox, Anthony David
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| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2021-10 |
| 卷号 | 205页码:- |
| 关键词 | Eutrophic waters Arsenic oxidation Nanobubble Hypoxia remediation Arsenic metabolism functional genes Hydroxyl radicals |
| ISSN号 | 0043-1354 |
| 英文摘要 | The arsenic (As)-bearing eutrophic waters may suffer from the dual conditions of harmful algal blooms and release of As, driven by algal-induced hypoxia/anoxia. Here, we investigate the use of interfacial oxygen (O-2) nanobubble technology to combat the hypoxia and control As exposure in simulated mesocosm experiments. It was observed that remediation of algal-induced hypoxia at the sediment-water interfaces (SWI) by application of O-2 nanobubbles reduced the level of dissolved As from 23.2 mu g L-1 to <10 mu g L-1 and stimulated the conversion of As(III) to the less toxic As(V) (65-75%) and methylated As (10-15%) species. More than half of the oxidation and all the methylation of As(III) resulted from the manipulation by O-2 nanobubbles of microbes responsible for As(III) oxidation and methylation. Hydroxyl radicals were generated during the oxidation of reductive substances at the SWI in darkness, and should be dominant contributors to As(III) abiotic oxidation. X-ray absorption near-edge structure (XANES) spectroscopic analysis demonstrated that surface sediments changed from being sources to acting as sinks of As, due to the formation of Fe-(hydr)oxide. Overall, this study suggests that interfacial O-2 nanobubble technology could be a potential method for remediation of sediment As pollution through the manipulation of O-2-related microbial and geochemical reactions. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46717]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Aarhus Univ, Dept Ecosci, DK-8000 Aarhus, Denmark 2.Wildlife Sci & Conservat Ctr Mongolia, Union Bldg B-701,Unseco St, Ulaanbaatar 14210, Mongolia 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 4.Mongolian Acad Sci, Inst Biol, Ulaanbaatar 13330, Mongolia 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Batbayar, Nyambayar,Yi, Kunpeng,Zhang, Junjian,et al. Combining Tracking and Remote Sensing to Identify Critical Year-Round Site, Habitat Use and Migratory Connectivity of a Threatened Waterbird Species[J]. REMOTE SENSING,2021,205:-. |
| APA | Batbayar, Nyambayar.,Yi, Kunpeng.,Zhang, Junjian.,Natsagdorj, Tseveenmyadag.,Damba, Iderbat.,...&Fox, Anthony David.(2021).Combining Tracking and Remote Sensing to Identify Critical Year-Round Site, Habitat Use and Migratory Connectivity of a Threatened Waterbird Species.REMOTE SENSING,205,-. |
| MLA | Batbayar, Nyambayar,et al."Combining Tracking and Remote Sensing to Identify Critical Year-Round Site, Habitat Use and Migratory Connectivity of a Threatened Waterbird Species".REMOTE SENSING 205(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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