Climate Change Data Portal
| DOI | 10.1038/s43247-024-01446-z |
| Metal mobilization from thawing permafrost to aquatic ecosystems is driving rusting of Arctic streams | |
| 发表日期 | 2024 |
| EISSN | 2662-4435 |
| 起始页码 | 5 |
| 结束页码 | 1 |
| 卷号 | 5期号:1 |
| 英文摘要 | Climate change in the Arctic is altering watershed hydrologic processes and biogeochemistry. Here, we present an emergent threat to Arctic watersheds based on observations from 75 streams in Alaska's Brooks Range that recently turned orange, reflecting increased loading of iron and toxic metals. Using remote sensing, we constrain the timing of stream discoloration to the last 10 years, a period of rapid warming and snowfall, suggesting impairment is likely due to permafrost thaw. Thawing permafrost can foster chemical weathering of minerals, microbial reduction of soil iron, and groundwater transport of metals to streams. Compared to clear reference streams, orange streams have lower pH, higher turbidity, and higher sulfate, iron, and trace metal concentrations, supporting sulfide mineral weathering as a primary mobilization process. Stream discoloration was associated with dramatic declines in macroinvertebrate diversity and fish abundance. These findings have considerable implications for drinking water supplies and subsistence fisheries in rural Alaska. Recent discoloration of 75 streams in Arctic Alaska reflects increased iron and trace metal loading following climate-driven permafrost thaw and enhanced sulfide mineral weathering and may impact water quality and biodiversity, suggests satellite remote sensing and biogeochemical analyses. |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:001227574700003 |
| 来源期刊 | COMMUNICATIONS EARTH & ENVIRONMENT
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/293433 |
| 作者单位 | United States Department of the Interior; United States Department of the Interior; United States Geological Survey; United States Department of the Interior; University of Alaska System; University of Alaska Anchorage; University of California System; University of California Riverside; Colorado State University; University of California System; University of California Davis |
| 推荐引用方式 GB/T 7714 | . Metal mobilization from thawing permafrost to aquatic ecosystems is driving rusting of Arctic streams[J],2024,5(1). |
| APA | (2024).Metal mobilization from thawing permafrost to aquatic ecosystems is driving rusting of Arctic streams.COMMUNICATIONS EARTH & ENVIRONMENT,5(1). |
| MLA | "Metal mobilization from thawing permafrost to aquatic ecosystems is driving rusting of Arctic streams".COMMUNICATIONS EARTH & ENVIRONMENT 5.1(2024). |
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