| 道路影响域的界定及其空间分异规律 ——-以纵向岭谷区为例 |
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| 引用本文： | 刘世梁,温敏霞,崔保山,富伟,杨敏.道路影响域的界定及其空间分异规律 ——-以纵向岭谷区为例[J].地理科学进展,2008,27(4):122-128. |
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| 作者姓名： | 刘世梁 温敏霞 崔保山 富伟 杨敏 |
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| 作者单位： | 北京师范大学环境学院水环境模拟国家重点实验室,北京,100875 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(2003CB415104)和国家自然科学基金项目(40501067). |
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| 摘 要： | 以纵向岭谷区道路网络为研究对象，考虑地形等相关因子，利用GIS 图形叠加分析得到区域道路影响域的范围，进一步统计道路影响域面积与区域面积的比例，探寻道路对区域影响的空间分异规律，并分析其与道路密度、人口密度、村庄数目、生态承载力、平均海拔高度等因素的相关性。结果表明：纵向岭谷区道路不同等级具有不 同的影响域范围，区域道路影响的空间分布存在差异，由省会昆明逐渐向周边辐射减小，红河流域高于澜沧江流域和怒江流域。在纵向岭谷区东部、北部、西南部部分地区道路影响呈现显著的空间集聚效应。影响因子的相关性分析表明，道路影响域比例与平均海拔高度不相关，与道路密度、人口密度、村庄数目、生态承载力相关显著。
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| 关 键 词： | 纵向岭谷区 道路影响域 空间分析 相关性分析 |
| 收稿时间： | 2008-02-01 |
| 修稿时间： | 2008-06-01 |
Definition and Spatial Differentiation of Road-effect Zone:A Case Study in Longitudinal Range-Gorge Region |
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| LIU Shiliang,WEN Minxia,CUI Baoshan,FU Wei,YANG Min.Definition and Spatial Differentiation of Road-effect Zone:A Case Study in Longitudinal Range-Gorge Region[J].Progress in Geography,2008,27(4):122-128. |
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| Authors: | LIU Shiliang WEN Minxia CUI Baoshan FU Wei YANG Min |
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| Institution: | School of Environment, State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875 |
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| Abstract: | Taking road network in Longitudinal Range-Gorge Region(LRGR) as an case study,we got the bound of road-effect zone through overlay method of GIS considering its influencing factors.Then we calculated the percentage of road-effect zone area in certain region and study the spatial variability in LRGR.Further,road density,population density,village number,ecological capacity and average altitude were selected to analyze their relationship with road effect zone.The results showed that different road types had various road-effect zones.Spatial contribution of road effect showed a great regional difference.The effect zone decreased from Kunming to region around.Honghe River Valley had a higher value than Lancang and Nujiang River Valley.In LRGR,there showed significant spatial convergence region in east,north and south-west of LRGR.Correlation analysis showed that there existed significant correlation between road-effect proportion and road density,population density,village number,ecological capacity while no correlation with average altitude. |
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| Keywords: | LRGR road-effect zone spatial autocorrelation correlation analysis |
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