[1]何成邦,胡春生*,田景梅,等.大别山东南缘河流裂点成因及其地貌演化意义[J].山地学报,2023,(3):322-334.[doi:10.16089/j.cnki.1008-2786.000751 ]
 HE Chengbang,HU Chunsheng*,TIAN Jingmei,et al.Origin and Geomorphological Evolution of River Knickpoints in the Southeast Edge of the Dabie Mountains, China[J].Mountain Research,2023,(3):322-334.[doi:10.16089/j.cnki.1008-2786.000751 ]
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大别山东南缘河流裂点成因及其地貌演化意义
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2023年第3期
页码:
322-334
栏目:
山地环境
出版日期:
2023-05-25

文章信息/Info

Title:
Origin and Geomorphological Evolution of River Knickpoints in the Southeast Edge of the Dabie Mountains, China
文章编号:
1008-2786-(2023)3-322-13
作者:
何成邦12 胡春生12* 田景梅12 赵婷婷12
(1.安徽师范大学 地理与旅游学院,安徽 芜湖 241002; 2. 江淮流域地表过程与区域响应安徽省重点实验室,安徽 芜湖 241002)
Author(s):
HE Chengbang12 HU Chunsheng12* TIAN Jingmei12 ZHAO Tingting12
(1. School of Geography and Tourism, Anhui Normal University, Wuhu 241002, Anhui, China; 2. Anhui Key Laboratory of Earth Surface Processes and Regional Response in the Yangtze-Huaihe River Basin, Wuhu 241002, Anhui, China)
关键词:
河流裂点 成因 构造运动 大别山
Keywords:
river knickpoint genesis tectonic movement the Dabie Mountains
分类号:
P333
DOI:
10.16089/j.cnki.1008-2786.000751
文献标志码:
A
摘要:
河流裂点形态特征蕴含了区域河流演化的历史信息,是认识区域地貌演化、构造运动、气候变化及人类活动潜在相互作用机制的切入点。以往裂点成因研究多选择在河流演化控制因素比较典型的地区,成因分析方法也相对单一。本文以河流演化环境复杂的大别山东南缘为研究区,基于标准陡峭指数、面积高程积分、坡度-面积双对数法和降水侵蚀力等探讨区域河流裂点形成原因。研究表明:(1)研究区5条河流干流纵剖面均处于不均衡状态,发育68个裂点。(2)研究区裂点发育受到构造活动、岩性、降水等多种因素影响。构造运动特别是郯庐断裂带等的断层活动是区域裂点发育的主导因素,共形成45个裂点,超过裂点总数量的65%。(3)研究区地貌演化受到构造运动影响,区域断层活动显著,并且构造运动活跃性存在差异,山地区域构造运动活跃性高于山前盆地,西南区域构造运动活跃性高于东北区域。本研究可为复杂区域河流演化研究提供借鉴,并从新的视角进一步了解大别山地区地貌演化过程。
Abstract:
The morphological features of river knickpoints embody the geo-history of regional river evolution, which are clues to interpret the potential interaction mechanism of regional geomorphic evolution, tectonic movement, climate change and human activities. Past investigations into the genesis of knickpoints were mostly conducted in some typical areas with recognized controlling factors of river evolution, and the approaches to genetic analysis were relatively single.

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备注/Memo

备注/Memo:
收稿日期(Received date): 2022-07-14; 改回日期(Accepted date): 2023-05-08
基金项目(Foundation item): 安徽省自然科学基金面上项目(2108085MD127)。[Provincial General Program of Natural Science Foundation of Anhui Province(2108085MD127)]
更新日期/Last Update: 2023-05-30