Numerical simulation of landscape evolution and mountain uplift history constrain——A case study from the youthful stage mountains around the central Hexi Corridor,NE Tibetan Plateau

作     者：Baotian PAN Shun CAI Haopeng GENG Baotian PAN;Shun CAI;Haopeng GENG

作者机构：Key Laboratory of Western China’s Environmental Systems(Ministry of Education)College of Earth and Environmental SciencesLanzhou UniversityLanzhou730000China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2021年第64卷第3期

页      面：412-424页

核心收录：

学科分类：08[工学] 09[农学] 0903[农学-农业资源与环境] 0834[工学-风景园林学（可授工学、农学学位）] 

基　　金：the National Natural Science Foundation of China(Grant Nos.41730637&41571003) 

主　　题：Hexi Corridor Landscape evolution models Youthful stage mountains Topographic characteristics Uniform valley spacing 

摘      要：Landscape evolution models(LEMs)are essential tools for analyzing tectonic-climate interactions and reproducing landform-shaping *** this study we used a LEM to simulate the evolution of the mountains from the central Hexi Corridor in the northeastern Tibetan Plateau,where the climate is arid and the surface processes are relatively ***,there are pronounced differences in the topography between the mountains around the central Hexi *** East Jintanan Shan,West Jintanan Shan and Heli Shan are located in the northern part of the corridor;and the Yumu Shan in the southern ***,several representative areas were selected from these mountains to analyze the topographic characteristics,including the uniform valley spacing,local relief,and the outlet ***,a LEM for these areas was constructed using the Landlab platform,and the landscape evolution was *** uniform valley spacing and other topographic characteristics as the criteria,we compared the realistic and simulated terrain for different model ***,based on the similarity of the simulated and realistic terrain,we estimated the timing of the initial uplift and the uplift rate of the four mountain *** results are consistent with previous geological and geomorphological records from these youthful stage mountains that have not yet reached a steady *** findings demonstrate that LEMs combined with topographic characteristics are a reliable means of constraining the timing of the initial uplift and the uplift rate of the youthful stage *** approach can potentially be applied to other youthful stage mountains and it may become a valuable tool in tectonic geomorphology research.