大渡河上游丹巴地区地貌分维特征的地质解析  

Geological Analysis of Landforms Fractal Dimension Features in the Upper Reaches of the Dadu River

作　　者：赵银兵[1,2] 倪忠云[1,2] 南希[3] 赵勇[1] 高海洋[1] 李谋忠[1] 

机构地区：[1]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]成都理工大学旅游与城乡规划学院,四川成都610059 [3]中国科学院水利部成都山地灾害与环境研究所,四川成都610041

出　　处：《地理与地理信息科学》2013年第5期64-67,F0003,共5页Geography and Geo-Information Science

基　　金：国家自然科学基金(40972225);青藏专项(1212011086057);2010年高等学校博士学科点专项科研基金(20105122120014);四川省教育厅重点项目(11ZA048);成都理工大学中青年骨干教师培养计划

摘　　要：基于高精度DEM,采用滑动窗口技术,计算丹巴地区的地貌分形特征。结果表明:地质构造决定地貌的宏观格架,构造规模和期次与地貌的平均分维值和标准差呈正相关关系;地层岩性决定地貌的中观和微观布局,变质作用与平均分维值和最大分维值呈正相关关系;地貌维度的极大值区多为地质环境异常区。该项研究对山地本体认知、地质环境调查及评价具有重要的参考价值。Based on high resolution DEM and sliding window technology, landform fractal dimension features of the Danba Area were calculated,the result shows that： geological structure determines the macro-scale framework of geomorphology, the scale and stages of geological structure is positively correlated with the average fractal dimension value and standard deviation; stra- tum and lithology determines meso-scale layout and micro-scale layout of the landscape, metamorphism is positively correlated with the average fractal dimension value and maximum fractal dimension value; maximum area of landforms dimension is mostly abnormal areas of the geological environment. This study is of great value to Mountain Ontology awareness, geological environ- ment survey and evaluation.

关 键 词：数字高程模型 滑动窗口 分形 地质构造 变质作用 深切河谷 

分 类 号：P931.6[天文地球—自然地理学]