Late Holocene sediment source changes in the Yellow River basin, China
文献类型：期刊论文
| 作者 | Ma, Xiaoqing1,2; Shi, Changxing2; Li, Huijuan1,2; Liu, Wei1,2 |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 472页码:109611 |
| 关键词 | Sediment fingerprinting Frequentist method Tributary tracing approach Historical sediment yield changes |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2025.109611 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Information on sediment sources in river basins is crucial for the rational distribution of soil and water conservation measures. The Yellow River in China has an overground channel in its downstream, which is prone to be breached during floods and has been elevated mainly by siltation of coarse particles in the river load. Soft sandstone strata underlaying an area in the middle reaches were found to be one of the principal coarse sediment sources of the river. Using a sediment fingerprinting mixing model with geochemical elements as tracers, we fingerprinted the changes in source apportionments from the region underlain by soft sandstone strata and the region with other substrata in the river basin in the past 2600 years. Source sediment samples were collected from the sediment deposits at the outlets of the main tributaries in the middle reaches, and target sediment samples were collected from alluvial fans in the lower reaches of the river. Geochemical properties of the samples were used as source fingerprints. Using the range test and Kruskal-Wallis H-test and considering the chemical reactivity of the tracer, five geochemical tracers were selected. The results showed that the sediment contribution (<63 mu m) of the basins in the region underlain by soft sandstone strata was in the range of 4.2 %-56.0 %, 19.6 % on average. Combining the relative source contributions with the total river load in historical periods, the reconstructed sediment yields from both sources showed an increasing trend with time, but the increasing rate was lower in the region underlain by soft sandstone strata where human interference was weaker historically. This study can serve as a reference for sediment fingerprinting in large catchments, and our findings have implications for future water and soil conservation in the Yellow River basin. |
| URL标识 | 查看原文 |
| WOS关键词 | FLUVIAL SEDIMENT ; TRACER SELECTION ; PARTICLE-SIZE ; LOESS PLATEAU ; SOIL-EROSION ; CATCHMENT ; TRANSPORT ; CLIMATE ; FLUXES ; YIELD |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001408748400001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/212310]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Shi, Changxing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Ma, Xiaoqing,Shi, Changxing,Li, Huijuan,et al. Late Holocene sediment source changes in the Yellow River basin, China[J]. GEOMORPHOLOGY,2025,472:109611. |
| APA | Ma, Xiaoqing,Shi, Changxing,Li, Huijuan,&Liu, Wei.(2025).Late Holocene sediment source changes in the Yellow River basin, China.GEOMORPHOLOGY,472,109611. |
| MLA | Ma, Xiaoqing,et al."Late Holocene sediment source changes in the Yellow River basin, China".GEOMORPHOLOGY 472(2025):109611. |
入库方式： OAI收割
来源：地理科学与资源研究所
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