山区县域聚落演化的空间分异特征及其影响因素——以豫西山地嵩县为例
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段小薇, 李小建
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Spatial differentiation and its influencing factors of settlements evolution in mountainous counties: A case study of Songxian county in western Henan province
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Xiaowei DUAN, Xiaojian LI
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表1 1975-2015年不同地形条件下嵩县聚落数量和斑块面积占比及斑块规模扩展指数 |
Tab. 1 The proportion of Songxian settlement quantity and scale as well as the expanding index of settlement scale under different terrains during 1975-1995 |
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地形因素 | 分级 | 占比(%) | | 聚落扩展指数(%) | 1975年 | | 1995年 | | 2015年 | 两阶段 | 数量 | 面积 | 数量 | 面积 | 数量 | 面积 | 1995-1975年 | 2015-1995年 | | 高程 | 丘陵 | 26.27 | 53.87 | | 28.09 | 59.50 | | 28.29 | 61.52 | | 3.098 | 3.647 | 低山 | 65.83 | 43.38 | 66.07 | 39.49 | 66.09 | 37.35 | 0.551 | 0.680 | 中山 | 7.91 | 2.75 | 5.84 | 1.01 | 5.62 | 1.13 | -0.087 | 0.074 | 地形起伏度 | 平坦起伏 | 2.45 | 9.68 | 2.21 | 10.96 | 2.17 | 11.54 | 5.270 | 2.632 | 微起伏 | 40.81 | 61.65 | 43.59 | | 66.39 | 45.09 | | 67.83 | 2.466 | | 3.386 | 小起伏 | 54.70 | 28.00 | 52.75 | | 22.29 | 51.55 | | 20.35 | 0.186 | | 0.300 | 中起伏 | 2.05 | 0.68 | 1.45 | | 0.36 | 1.18 | | 0.28 | -0.018 | | 0.011 | 坡度 | 0°~6° | 35.07 | 61.14 | 36.29 | 65.66 | 37.73 | 68.13 | 3.502 | 4.337 | 6°~15° | 49.45 | 33.46 | 50.63 | | 31.22 | 49.72 | | 28.94 | 0.660 | | 0.713 | 15°~25° | 15.04 | 5.28 | 12.79 | | 3.07 | 12.42 | | 2.90 | -0.023 | | 0.091 | 25°~35° | 0.45 | 0.13 | 0.29 | | 0.05 | 0.12 | | 0.02 | -0.012 | | -0.006 | 35°~62° | 0 | 0 | 0 | | 0 | 0 | | 0 | 0 | | 0 | 地形位指数 | 0~0.2 | 1.41 | 7.83 | 0.70 | 12.32 | 0.87 | 13.59 | 1.019 | 12.664 | 0.2~0.4 | 34.88 | 58.83 | 36.52 | | 59.76 | 38.54 | | 60.76 | 3.878 | | 3.000 | 0.4~0.6 | 45.73 | 27.72 | 48.59 | | 25.08 | 47.20 | | 23.21 | 0.593 | | 0.683 | 0.6~0.8 | 17.53 | 5.52 | 13.87 | | 2.81 | 13.17 | | 2.41 | -0.053 | | 0.051 | 0.8~1 | 0.45 | 0.10 | 0.32 | | 0.025 | 0.22 | | 0.035 | -0.008 | | 0.005 | 1~1.21 | 0 | — | 0 | | — | 0 | | — | 0 | | 0 |
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