基于DEM的地形因子分析与岩性分类

王婷, 潘军, 蒋立军, 邢立新, 于一凡, 王鹏举

Topographic variable analysis and lithologic classification based on DEM

Ting WANG, Jun PAN, Lijun JIANG, Lixin XING, Yifan YU, Pengju WANG

表3 地形因子的单元大小与地表切割深度均值的对应情况

Tab.3 Correspondence between the unit size of the terrain factor and the mean value of the surface cutting depth

窗口大小 面积/(100 m2) 地表切割深度均值/m 3 81 6.66 5 225 12.79 7 441 18.45 9 729 23.70 11 1 089 28.60 13 1 521 33.21 15 2 025 37.54 17 2 601 41.61 19 3 249 45.46 21 3 969 49.09 23 4 761 52.53 25 5 625 55.79 27 6 561 58.88 31 8 649 64.61 35 11 025 69.81 39 13 689 74.58 43 16 641 78.98 47 19 881 83.06 51 23 409 86.88 55 27 225 90.47