基于地貌视角的喀斯特流域水系分维估算方法适应性分析
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安全, 贺中华, 赵翠薇, 梁虹, 焦树林, 杨朝晖
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GIS-based estimation of fractal dimension and geomorphological development of the water system in the dam construction area
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Quan AN, Zhonghua HE, Cuiwei ZHAO, Hong LIANG, Shulin JIAO, Chaohui YANG
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表3 地形图水系与ASTER-GDEM水系栅格参数
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Tab.3 Water system of topographic map and ASTER-GDEM grid parameters
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| 1:5万栅格水系法 | | 30 m空间分辨率ASTER-GDEM栅格水系法 | | 栅格边长r | 栅格数目N(r) | Lgr | LgN(r) | 栅格边长r | 栅格数目N(r) | Lgr | LgN(r) | | 500 | 4 975 | 2.699 | 3.697 | 500 | 5 754 | 2.699 | 3.760 | | 1 000 | 2 161 | 3.000 | 3.335 | 1 000 | 2 614 | 3.000 | 3.417 | | 1 500 | 1 225 | 3.176 | 3.088 | 1 500 | 1 526 | 3.176 | 3.184 | | 2 000 | 810 | 3.301 | 2.908 | 2 000 | 1 004 | 3.301 | 3.002 | | 2 500 | 569 | 3.398 | 2.755 | 2 500 | 675 | 3.398 | 2.829 | | 3 000 | 424 | 3.477 | 2.627 | 3 000 | 491 | 3.477 | 2.691 | | 3 500 | 328 | 3.544 | 2.516 | 3 500 | 374 | 3.544 | 2.573 | | 4 000 | 269 | 3.602 | 2.430 | 4 000 | 295 | 3.602 | 2.470 | | 4 500 | 216 | 3.653 | 2.334 | 4 500 | 244 | 3.653 | 2.387 | | 5 000 | 187 | 3.699 | 2.272 | 5 000 | 205 | 3.699 | 2.312 | | 5 500 | 161 | 3.740 | 2.207 | 5 500 | 163 | 3.740 | 2.212 | | 6 000 | 143 | 3.778 | 2.155 | 6 000 | 146 | 3.778 | 2.164 | | 6 500 | 117 | 3.813 | 2.068 | 6 500 | 131 | 3.813 | 2.117 | | 7 000 | 106 | 3.845 | 2.025 | 7 000 | 114 | 3.845 | 2.057 | | 7 500 | 93 | 3.875 | 1.968 | 7 500 | 100 | 3.875 | 2.000 | | 8 000 | 85 | 3.903 | 1.929 | 8 000 | 90 | 3.903 | 1.954 | | 8 500 | 78 | 3.929 | 1.892 | 8 500 | 79 | 3.929 | 1.898 | | 9 000 | 70 | 3.954 | 1.845 | 9 000 | 76 | 3.954 | 1.881 | | 9 500 | 65 | 3.978 | 1.813 | 9 500 | 69 | 3.978 | 1.839 | | 10 000 | 59 | 4.000 | 1.771 | 10 000 | 64 | 4.000 | 1.806 |
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