标题：Fluvial Responses to Late Quaternary Climate Change in a Humid and Semi-Humid Transitional Area: Insights from the Upper Huaihe River, Eastern China

作者：Zongmeng Li, Yixuan Wang*, Wenmin Zhu, Hongshan Gao, Fenliang Liu, Wei Xing, Chenguang Zhang, Qiang Qiao, Xiaoying Lei

来源出版物：WATER，2023年，15卷，9期

DOI：10.3390/w15091767

出版年: 2023

文献类型：Article

语种：英文

摘要：Research into river processes in different climatic and geomorphic areas is vital for a clearer understanding of the non-linear responses of rivers to climate change. The Huaihe River (HHR) Basin, located in China’s North-South Transition Zone (NSTZ), provides an ideal environment in which to explore river responses to climate change within a humid/semi-humid transitional area. Based on optically stimulated luminescence (OSL) and 14C dating, combined with sedimentary stratigraphic analyses, we reconstructed the river processes of three sedimentary sequences in the upper HHR since the Late Quaternary. Our results showed that the upper HHR was characterized by aggrading meandering channels from the Last Glacial Maximum (LGM) to 0.5 ka, and an ag-grading wandering channel from 0.2 ka to the present. Two periods of downcutting occurred during 5.8–3.0 and 0.5–0.2 ka, respectively. The river incision is potentially linked to changes in the climate during the Mid–Late Holocene transition and the Little Ice Age (LIA). However, there have been no marked changes in channel patterns in the upper HHR since the LGM. This phenomenon reflects the influence of vegetation on channel patterns during climate change. Our results showed that the fluvial processes in different climatic and geomorphic areas are controlled by the local hydroclimatic regime.

关键词：fluvial process; climate change; Late Quaternary; upper Huaihe River

影响因子：3.4

论文连接：https://www.mdpi.com/2073-4441/15/9/1767