河北地质大学学报2023，Vol.46Issue(6)：35-40,6.DOI:10.13937/j.cnki.hbdzdxxb.2023.06.005
基于DEM数据的云南省宁洱县夷平面提取及其分布特征
Extraction and Distribution Characteristics of Planation Surface in Ning'er County of Yunnan Province Based on DEM Data
摘要
Abstract
Ning'er County of Yunnan Province,which is located in the west of Ailaoshan fault,has intense neotectonics movement.To analyze the differential tectonic characteristics of neotectonics in this county,the author uses ArcGIS software to extract and analyze different geomorphic factors of the DEM data and thus obtain four levels of planation surface.The results show that the surface of this county is high elevation(the elevation is between 1 000～3 500 m,belongs to a medium altitude),with its slope steep(steep and sloping areas account for a total of 91.89%)and its topography undulating greatly(small and medium undulating mountainous areas jointly account for 93.22%).There developed four different planation surfaces with elevations of 1 220 m,1 355 m,1 626 m and 1 707 m respectively in this county.The plane distribution characteristics of all levels of planation surface are affected by the tectonic deformation obviously.There developed more faults and less planation surface surrounding large faults,where have strong tectonic deformation.However,there developed more planation surface in those areas which has less faults and vertical structural uplift.关键词
海拔/地貌/夷平面/新构造运动/宁洱县/云南省Key words
elevation/topography/planation surface/Neotectonics/Ning'er County/Yunnan Province分类
天文与地球科学引用本文复制引用
金文正..基于DEM数据的云南省宁洱县夷平面提取及其分布特征[J].河北地质大学学报,2023,46(6):35-40,6.基金项目
云南省科技计划项目(202302AF080001) （202302AF080001）
国家自然科学基金项目(41002072). （41002072）
