气候变化领域集成服务门户(CCPortal): Evolution of eastern Tibetan river systems is driven by the indentation of India

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DOI	10.1038/s43247-021-00330-4
	Evolution of eastern Tibetan river systems is driven by the indentation of India
	Chen, Yi; Wu, Baosheng; Xiong, Zhongyu; Zan, Jinbo; Zhang, Bangwen; Zhang, Ruoyin; Xue, Yuan; Li, Minhui; Li, Bingshuai
通讯作者	Wu, BS (通讯作者)
发表日期	2021
EISSN	2662-4435
卷号	2 期号:1
英文摘要	The main rivers that originate from the Tibetan Plateau are important as a resource and for the sedimentary and biogeochemical exchange between mountains and oceans. However, the dominant mechanism for the evolution of eastern Tibetan river systems remains ambiguous. Here we conduct geomorphological analyses of river systems and assess catchment-average erosion rates in the eastern Tibetan Plateau using a digital elevation model and cosmogenic radionuclide data. We find that major dividing ranges have northeast oriented asymmetric geometries and that erosion rates reduce in the same direction. This coincides with the northeastward indentation of India and we suggest this indicates a primarily tectonic influence on the large-scale configuration of eastern Tibetan river systems. In contrast, low-level streams appear to be controlled by fluvial self-organization processes. We propose that this distinction between high- and low-order channel evolution highlights the importance of local optimization of optimal channel network models in tectonically active areas. The evolution of river systems in the eastern Tibetan Plateau is controlled by the indentation of India at the large-scale but by fluvial self-organization at the scale of lower-order river networks, according to geomorphological analyses of river systems.
关键词	THRESHOLD HILLSLOPES CRUSTAL DEFORMATION ASIA COLLISION ROCK UPLIFT INCISION PLATEAU UNIVERSALITY NETWORKS SEDIMENT DYNAMICS
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000730965400002
来源期刊	COMMUNICATIONS EARTH & ENVIRONMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260233
推荐引用方式 GB/T 7714	Chen, Yi,Wu, Baosheng,Xiong, Zhongyu,et al. Evolution of eastern Tibetan river systems is driven by the indentation of India[J]. 中国科学院青藏高原研究所,2021,2(1).
APA	Chen, Yi.,Wu, Baosheng.,Xiong, Zhongyu.,Zan, Jinbo.,Zhang, Bangwen.,...&Li, Bingshuai.(2021).Evolution of eastern Tibetan river systems is driven by the indentation of India.COMMUNICATIONS EARTH & ENVIRONMENT,2(1).
MLA	Chen, Yi,et al."Evolution of eastern Tibetan river systems is driven by the indentation of India".COMMUNICATIONS EARTH & ENVIRONMENT 2.1(2021).