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### 基于面积−高程积分的他念他翁山玉曲流域地貌学分析

1. 1. 辽宁师范大学地理科学学院，辽宁 大连 116029
2. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室，陕西 西安 710061
• 收稿日期:2019-11-29 出版日期:2020-08-10 发布日期:2020-12-07
• 作者简介:张威（1969−），男，吉林松原人，教授，博导，主要研究方向为环境与灾害地貌。E-mail: zhangweilnu@163.com
• 基金资助:
国家自然科学基金项目（41671005）资助

### Geomorphologic Analysis of the Yuqu River Drainage basin in Tenasserim Chain Based on Hypsometric Integral Value

Zhang Wei1(), Tang Qianyu1, Liu Liang1, Shen Junjie2, Li Yapeng1, Cheng Ran1

1. 1. College of Geography, Liaoning Normal University, Dalian 116029, Liaoning, China
2. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, Shaanxi, China
• Received:2019-11-29 Online:2020-08-10 Published:2020-12-07
• Supported by:
National Natural Science Foundation of China (41671005)

Abstract:

The area elevation analysis of the basin is usually used to reveal the stage of geomorphological development, which is of great scientific significance for exploring the evolution of the basin environment. In this paper, the Yuqu River Basin of middle Tenasserim Chain is used as the research area. Using the hydrological analysis tools in Arcgis, the Yuqu River Basin is divided into 1 030 sub-basin basins. The area-elevation integral value (HI) of sub-basin basin is calculated using the elevation fluctuation ratio method. Combined with the tectonic movement, lithology, topographic relief and glacial action in the study area, the distribution characteristics and main influencing factors of HI values are discussed, and the geomorphological evolution stage of the study area is determined. The results display that: 1) The HI value of all sub-basin basins in the Yuqu River Basin is between 0.18 and 0.70, and the average HI is 0.44. The whole is in the strong and old stage of the erosion cycle. 2) The two major faults of the Changmaoling large fault and the Wahe large fault pass through the Yuqu basin, and the average HI values of the two faults are 0.47 and 0.42, respectively. The activity of the Changmaoling fault is higher than that of the Wahe fault, indicating that the construction factor has a certain influence on the HI value. 3) Due to the different lithologic erosion resistance in different sub-basin basins, the HI values are quite different. Intrusive rocks such as granite and diorite (average 0.55)> Conglomerate, limestone and other sedimentary rocks (average 0.49)> Marine carbonate rocks (average 0.47)> Mixed with siltstone, shale, Feldspar quartz sandstone of mudstone (average 0.42)> Quaternary alluvial and glacial till (average 0.35). 4) For the Yuqu River brainage, precipitation has little influence on HI value.

• P931