河流堰塞的地貌响应
GEOMORPHOLOGIC RESPONSE OF RIVER DAMMING
查看参考文献117篇
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文摘
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堰塞作为一种极端地表过程,深刻影响着河流地貌的变化,特别是河流纵剖面的变化。其对河流纵剖面的影响主要体现在两方面:一方面,堰塞坝将抬高局地的侵蚀基准面,阻碍了上游河道侵蚀,形成河流裂点;另一方面,堰塞坝溃决往往形成大型/巨型洪水,造成下游河道和岸坡的剧烈侵蚀。稳定的堰塞坝形成后,在1~10~5 a的时间尺度上对河流裂点的发育以及河流纵剖面变化上甚至会超过构造、气候和岩性作用,占据主导。本文在简要概述堰塞地貌相关概念的基础上,介绍了部分河流堰塞的研究方法和案例,以及河流堰塞的发育过程和研究意义。目前多仅从堰塞坝与河流纵剖面的空间关系的相关性来论证其地貌响应,并且发现一些堰塞坝与河流纵剖面的相关性,但是也有一些古堰塞坝对现代河流纵剖面的影响并不显著,原因可能与堰塞坝规模、溃决洪水次数、堵江的持续时间和距今年代的不同有关,目前还缺乏深入研究。 |
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其他语种文摘
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The evolution of river landscape is comprehensively influenced of various factors, such as bedrock lithology, sediment supply, tectonic activities, vegatation and climate changes. An increasing number of studies suggested that damming incidents occurred on the stream channel are capable of significantly modifing the morphology of longitudinal profiles of river display. For example, knickpoints formed by repeatedly river damming during the glacial and interglacial periods could retard headward erosion along the river channel, which play a critical role in maintaining the integrity of the Tibetan Plateau. However, previous studies rarely take this into account when geomorphologic analyses were carried out using quantitative morphological parameters of the river longitudinal profile. The influences of river damming on the evolution of river longitudinal profiles are mainly reflected as follows. Firstly,the dams would rise the local base level of erosion,resulting in upstream aggradation,enlargement of valley width. In addition, the dams would act as a river knickpoint to retard the regressive erosion towards upstream channel. A forementioned influences primarily depends on the height and duration of the dams blocking. Lastly, the dam failures usually trigger flood of great magnitude causing severe downstream erosion of and longitudinal profile of river adjusts itself to equilibrium until the knickpoint vanish due to the focused downward erosion at the dam body. This process would promote river erosion,which mainly depends on the magnitude,frequency, and occurring time of outburst floods. Extreme events such as river damming and outburst floods are important processes for channel aggradation and erosion of rivers. However, an adequate understanding of their impacts on the evolution of river geomorphology is lacking in China. Hence, we conduct a brief overview of studies on river-damming and its influences on river geomorphology in this paper, taking related researches in southern New Zealand and Swiss Alps, the edge of the Tibetan Plateau, eastern Oregon and western Turkey as examples. To date, studies on responses of river system to damming incidents have only be carried out based on the spatial correlation between dams and knickpoints of the river. In oder to quantify the geomorphic effect of the river damming, it is necessary to obtain the detailed parameters of magnitude, frequency and time of duration of the river dammingand consequent outburst floods. |
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来源
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第四纪研究
,2019,39(2):366-380 【核心库】
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DOI
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10.11928/j.issn.1001-7410.2019.02.09
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关键词
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堰塞坝
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河流裂点
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河流纵剖面
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溃决洪水
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侵蚀
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地址
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1.
青海师范大学地理科学学院, 青海, 西宁, 810008
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中国科学院、水利部成都山地灾害与环境研究所, 中国科学院山地灾害与地表过程重点实验室, 四川, 成都, 610041
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汕头大学海洋科学学院, 广东, 汕头, 515063
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中国科学院青藏高原研究所, 北京, 100101
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青海师范大学, 青海省自然地理与环境过程重点实验室, 青海, 西宁, 810008
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-7410 |
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学科
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地质学;自然地理学 |
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基金
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国家自然科学基金项目
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清华大学水沙科学与水利水电工程国家重点实验室基金
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文献收藏号
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CSCD:6447794
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参考文献 共
117
共6页
|
|
1.
Beaumont C. Himalayan tectonics explained by extrusion of a low-viscosity crustal channel coupled to focused surface denudation.
Nature,2001,414(6865):738-742
|
被引
212
次
|
|
|
|
|
2.
Burbank D W. Tectonic geomorphology.
Environmental Engineering Geoscience,2013,19(2):198-200
|
被引
6
次
|
|
|
|
|
3.
Liu-Zeng J. Quantifying landscape differences across the Tibetan Plateau: Implications for topographic relief evolution.
Journal of Geophysical Research: Earth Surface (2003-2012),2008,113:F04018
|
被引
43
次
|
|
|
|
|
4.
Molnar P. Late Cenozoic uplift of mountain ranges and global climate change: Chicken or egg?.
Nature,1990,346(6279):29-34
|
被引
157
次
|
|
|
|
|
5.
Montgomery D R. Climate, tectonics, and the morphology of the Andes.
Geology,2001,29(7):579-582
|
被引
19
次
|
|
|
|
|
6.
Zeitler P K. Erosion, Himalayan geodynamics, and the geomorphology of metamorphism.
GSA Today,2001,11(1):4-9
|
被引
34
次
|
|
|
|
|
7.
Whipple K X. Bedrock rivers and the geomorphology of active orogens.
Annual Review of Earth and Planetary Sciences,2004,32(1):151-185
|
被引
75
次
|
|
|
|
|
8.
潘保田. 祁连山东段沙沟河阶地的年代与成因.
科学通报,2000,45(24):2669-2675
|
被引
68
次
|
|
|
|
|
9.
王一舟. 基岩河道河流水力侵蚀模型及其应用:兼论青藏高原基岩河道研究的迫切性.
第四纪研究,2016,36(4):884-897
|
被引
25
次
|
|
|
|
|
10.
王一舟. 祁连山洪水坝河流域地貌特征及其构造指示意义.
第四纪研究,2013,33(4):737-745
|
被引
32
次
|
|
|
|
|
11.
王一舟. 非均衡河道高程剖面及其蕴含的构造活动信息.
第四纪研究,2018,38(1):220-231
|
被引
8
次
|
|
|
|
|
12.
Goren L. Tectonics from fluvial topography using formal linear inversion: Theory and applications to the Inyo Mountains, California.
Journal of Geophysical Research: Earth Surface,2014,119(8):1651-1681
|
被引
11
次
|
|
|
|
|
13.
Kirby E. Quantifying differential rock-uplift rates via stream profile analysis.
Geology,2001,29(5):415-418
|
被引
84
次
|
|
|
|
|
14.
Wang Yizhou. How a stationary knickpoint is sustained: New insights into the formation of the deep Yarlung Tsangpo Gorge.
Geomorphology,2017,285:28-43
|
被引
11
次
|
|
|
|
|
15.
Willett S D. Dynamic Reorganization of River Basins.
Science,2014,343(6175):1248765
|
被引
40
次
|
|
|
|
|
16.
Yang R. In situ low-relief landscape formation as a result of river network disruption.
Nature,2015,520(7548):526-529
|
被引
45
次
|
|
|
|
|
17.
胡小飞. 河道陡峭指数所反映的祁连山北翼抬升速率的东西差异.
科学通报,2010,55(23):3205-3214
|
被引
4
次
|
|
|
|
|
18.
张会平. 河流裂点的发育及其溯源迁移:以鸭绿江-望天鹅火山区为例.
中国科学:地球科学,2011(11):1627-1635
|
被引
13
次
|
|
|
|
|
19.
程璐. 基于地貌计量指标分析的钱塘江流域地貌演化特征.
第四纪研究,2017,37(2):343-352
|
被引
13
次
|
|
|
|
|
20.
刘蓓蓓. 基于面积-高程积分法的岷山雪宝顶-九寨沟地貌形态分析.
第四纪研究,2017,37(2):224-233
|
被引
13
次
|
|
|
|
|
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