Analysis of Longitudinal Profiles along the Eastern Margin of the Qinghai-Tibetan Plateau

作     者：Simon J. Aiken Gary J. Brierley 

作者机构：School of Environment the University of AucklandAuckland 1010 New Zealand 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2013年第10卷第4期

页      面：643-657页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 07[理学] 070501[理学-自然地理学] 0303[法学-社会学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0705[理学-地理学] 0815[工学-水利工程] 0706[理学-大气科学] 0816[工学-测绘科学与技术] 0813[工学-建筑学] 0704[理学-天文学] 0833[工学-城乡规划学] 0713[理学-生态学] 0834[工学-风景园林学（可授工学、农学学位）] 

基　　金：Funding was provided by International Science&Technology Cooperation Program of China(Grant Nos.2011DFG93160 2011DFA20820) 

主　　题：Longitudinal profile Erosion Relief Tectonics Qinghai-Tibetan Plateau 

摘      要：Resulting from the collision of the Eurasian and Indian plates, the Qinghai-Tibetan Plateau is commonly known as the ＇roof of the world＇. Collectively the Yarlung Tsangpo, Nu, Laneang, Yangtze, Yalong, and Yellow River basins drain the eastern margin of the plateau. In this paper, we utilize Shuttle Radar Topography Mission elevation data to examine morphometric and relief attributes of these basins to reveal insights rates of incision. A robust into tectonic activity and technique using Maflab is proposed to alleviate errors associated with SRTM data in the derivation of river longitudinal profiles. Convex longitudinal profiles are interpreted to be a product of uplift rates that exceed rates of channel incision along the entire margin of the Qinghai- Tibetan Plateau. Highest relief towards the south reflects extensive fluvial incision. High relief is also prominent along major active faults. Erosion patterns are related to distance from knickpoints. Highest rates of erosion and incision are evident towards the south, with decreasing values towards the north, suggesting a link between tectonic activity and erosion.