数学形态学在黄土地貌单元分类学上的应用  

Application of Math-morphological Features in Relief Taxonomy of Loess Plateau

作　　者：陈燕[1] 齐清文[1] 杨志平[1] 纪翠玲[1] 彭虓[1] 梁雅娟[1] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101

出　　处：《山地学报》2005年第1期96-100,共5页Mountain Research

基　　金：国家863信息领域对地观测数据处理与分析技术课题(编号2001AA135140)。;中国科学院知识创新工程领域前沿项目(CXIOG-D001-01)。~~

摘　　要：以黄土高原的遥感图像为基本信息源,利用数学形态学方法提取黄土高原地貌单元,分别计算出各个地貌单元的形状指数、面积周长比、分形分维指数和由形状复杂和边界扭曲引起的FD(分形分维)值变化数等6项数学形态特征,并进行统计分析,利用这些参数对每类地貌单元进一步分类,同时对各项数学形态特征在黄土高原地貌单元分类上作为分类特征的可靠性和可行性进行论证,并对黄土高原地貌单元分类进行定量化方面的探讨和研究,取得了较理想的结果。We took the remote sensing image of the loess plateau as the basic information resources and used the method of math morphology to abstract the relief unit; then calculated the shape index,area/parameter ratio,fractal dimension caused by the shape complicity and the boundary distortion, and other math-morphological features. Then the six kinds of characters are analyzed based on the statistics, we made a further classification about the relief unit and concluded that it is reliable and feasible to use the math-morphological features to classify the loess plateau's relief. At last we discussed the research in the relief cell classification by the quantificational method and got the ideal result,which are when the SI is less than 0.915 and FD is equal or lesser than 1.015,the relief cell is named The Round-Mao;when SI is between 0.915 and 0.99 and FD is between 1.001 6 and 1.015,the relief cell is called The Elliptical-Mao;when SI is between 0.99 and 1.05 and FD is between 0.990 8 and 1.001 6,the relief cell is called The Anomalous-round Mao;when SI is between 1.05 and 1.2 and FD is between 0.967 1 and 0.990 8,the relief cell is called The Anomalous-elliptical Mao;when SI is between 1.2 and 1.35 and FD is between 0.944 3 and 0.967 1,the relief cell is called The Anomalous-linear Mao;when SI is between 1.35 and 2.1 and FD is between 0.836 3 and 0.944 3,the relief cell is called The simple one-dimension Liang;when SI is between 2.1 and 3.15 and FD is between 0.745 3 and 0.836 3,the relief cell is called The simple dendritic Liang;when SI is between 3.15 and 4.0 and FD is between 0.660 1 and 0.745 3,the relief cell is called The dendritic Liang;when SI is equal or greater than 4.0 and FD is less than 0.660 1,the relief cell is called The dendritic Liang-Group.

关 键 词：数学形态学 黄土高原 地貌单元 地貌分类 

分 类 号：P183.1[天文地球—天文学]