高山峡谷区MPSIAC侵蚀模型适用性研究  

Study on Surface Erosion Intensity in Alpine Valley Area

作　　者：武彬彬 常鸣[1] 唐亮亮 刘沛源 罗超鹏 Wu Binbin;Chang Ming;Tang Liangliang;Liu Peiyuan;Luo Chaopeng(State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China;Shanxi Huaye Survey Engineering Technology Co.,Ltd.,Taiyuan 030032,China)

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059 [2]山西华冶勘测工程技术有限公司,山西太原030032

出　　处：《地球科学》2024年第10期3815-3825,共11页Earth Science

基　　金：第二次青藏高原综合科学考察研究(No.2019QZKK0902);四川省自然科学基金项目(No.2024NSFSC0071)。

摘　　要：地表侵蚀能够对环境产生巨大的影响,强烈的地表侵蚀是崩塌、滑坡和泥石流等地质灾害的诱发因素.高山峡谷地区地质地貌条件复杂、地表水动力高度发育,区内大范围存在高强度的地表侵蚀.以川西典型高山峡谷区松潘县为研究区,在详细调查区域侵蚀现状的基础上,基于MPSIAC模型建立了高山峡谷地表侵蚀能力评价体系,对松潘县全域进行地表侵蚀强度评价并利用InSAR技术对评价结果进行检验.结果表明,松潘县地表侵蚀强度较高处主要分布于县域东南部岷江乡、镇江关乡等地,较低处主要分布于北部毛儿盖镇、川主寺镇等地.MPSIAC模型经过修正后可以对高山峡谷地区地表侵蚀能力做出准确的评价.The development of geological disasters is often affected by the surface erosion environment.Landform processes such as collapse,landslide,and debris flow are the most intuitive embodiment of surface erosion.The geological and geomorphological conditions are complex and the surface hydrodynamics are highly developed in alpine canyon areas.In this paper it takes Songpan County,a typical alpine canyon in West Sichuan Province,as the research area.The alpine canyon’s surface erosion capacity evaluation system was established based on the MPSIAC model after a detailed investigation of regional erosion status.The surface erosion capacity evaluation of Songpan County was carried out,and the InSAR technology was used to test this result.The result shows that the high-intensity surface erosion of Songpan County is distributed in Minjiang Town and Zhenjiangguan Town in the southeast.In contrast,the low-intensity surface erosion of Songpan County is mainly distributed in Maoergai Town and Chuanzhusi Town in the north.The MPSIAC model can be modified to accurately evaluate surface erosion capacity in alpine canyon areas.

关 键 词：高山峡谷地区 MPSIAC模型 侵蚀强度 INSAR技术 工程地质学 

分 类 号：P642.23[天文地球—工程地质学]