现代黄河三角洲沉积物粒度端元特征及其对河道变迁和人类活动的响应
文献类型：期刊论文
| 作者 | 孟丽卫2; 王龙升1,2; 战超2; 刘现彬2; 王庆2 |
| 刊名 | 海洋地质前沿
 |
| 出版日期 | 2023 |
| 卷号 | 39期号:9页码:16-24 |
| 关键词 | 粒度特征 端元分析 河道变迁 人类活动 黄河三角洲 |
| ISSN号 | 1009-2722 |
| 其他题名 | End-member characteristics of sediment grain size of modern Yellow River Delta sediments and their response to channel shifts and human activities |
| 文献子类 | 期刊论文 |
| 英文摘要 | Yellow River Delta sediments record environmental changes in the Yellow River basin at long time scales, and respond sensitively to natural and human activities such as river diversions and reservoir construction in the basin. We analyzed the grain size distribution of core YDC from onshore delta since 1976 near the river mouth were analyzed using a parametric end-member analysis model. Results show that EM1 and EM2 are composed of fine-grained clay and fine powder sand, deposited under weak hydrodynamic conditions for long distance transport in the Yellow River, while EM3 and EM4 are coarse powder sand fractions, deposited by wave and tidal action under stronger dynamic conditions. By comparing the data on channel alteration and human activities, and combining data from previous studies on sedimentation rates in the Yellow River estuary, we found that significant changes in grain size characteristics could be used as reference points for sediment age determination. The grain size parameters and end element data reflect the natural and human activities since 1976, such as the diversion of the Yellow River from Qingshuigou to the sea, the construction of the Longyangxia Reservoir, and the diversion of the Yellow River from Qingbacha to the sea. This study provide a reference for the management of the Yellow River Delta estuary and coastal engineering construction, and a scientific basis for ecological protection and high-quality development of the Yellow River basin. |
| 语种 | 中文 |
| CSCD记录号 | CSCD:7560842 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/34114]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.中国科学院烟台海岸带研究所,中国科学院海岸带环境过程与生态修复重点实验室,烟台264003 2.鲁东大学海岸研究所,烟台264025; |
| 推荐引用方式 GB/T 7714 | 孟丽卫,王龙升,战超,等. 现代黄河三角洲沉积物粒度端元特征及其对河道变迁和人类活动的响应[J]. 海洋地质前沿,2023,39(9):16-24. |
| APA | 孟丽卫,王龙升,战超,刘现彬,&王庆.(2023).现代黄河三角洲沉积物粒度端元特征及其对河道变迁和人类活动的响应.海洋地质前沿,39(9),16-24. |
| MLA | 孟丽卫,et al."现代黄河三角洲沉积物粒度端元特征及其对河道变迁和人类活动的响应".海洋地质前沿 39.9(2023):16-24. |
入库方式： OAI收割
来源：烟台海岸带研究所
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