贵州省乌江流域人口分布与地形的关系
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程东亚, 李旭东
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Relationship between population distribution and topography of the Wujiang River Watershed in Guizhou province
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CHENG Dongya, LI Xudong
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表3 贵州省乌江流域不同地形因子分等级统计特征
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Tab. 3 Statistical characteristics of topographic factors of the Wujiang River Watershed in Guizhou province
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海拔 | | 坡度 | | 起伏度 | 海拔(m) | 占比(%) | 累计(%) | 坡度(°) | 占比(%) | 累计(%) | 起伏度(m) | 占比(%) | 累计(%) | <600 | 3.82 | 3.82 | | <5 | 15.11 | 15.11 | | <50 | 2.68 | 2.68 | 600~800 | 11.16 | 14.97 | | 5~10 | 24.13 | 39.25 | | 50~100 | 10.63 | 13.31 | 800~1000 | 21.05 | 36.02 | | 10~15 | 23.34 | 62.58 | | 100~150 | 18.63 | 31.94 | 1000~1200 | 18.04 | 54.05 | | 15~20 | 17.03 | 79.61 | | 150~200 | 20.33 | 52.27 | 1200~1400 | 20.54 | 74.59 | | 20~25 | 10.48 | 90.10 | | 200~250 | 17.47 | 69.74 | 1400~1600 | 10.72 | 85.32 | | 25~30 | 5.59 | 95.69 | | 250~300 | 12.63 | 82.37 | 1600~1800 | 6.24 | 91.56 | | 30~35 | 2.60 | 98.29 | | 300~350 | 7.98 | 90.35 | 1800~2000 | 4.77 | 96.32 | | 35~40 | 1.08 | 99.37 | | 350~400 | 4.57 | 94.92 | 2000~2200 | 2.36 | 98.68 | | 40~45 | 0.41 | 99.77 | | 400~450 | 2.54 | 97.45 | ≥2200 | 1.32 | 100.00 | | ≥45 | 0.23 | 100.00 | | ≥450 | 2.55 | 100.00 | 累计 | 100.00 | | | | 100.00 | | | | 100.00 | |
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