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以石羊河流域为研究区,在GIS理论方法指导下计算石羊河流域道路网密度,分析了道路网密度与人口密度、GDP密度之间的相关性,在此基础上,分析了石羊河流域道路网密度和道路网空间依赖—偏好指数分布及空间特征。结果表明:石羊河流域的道路网密度以金昌市、武威市为中心向外发散,道路网密度呈带状分布,从南部天祝县城延伸至金昌市金川区。石羊河流域社会经济发展对道路网的依赖性很强,其中超强依赖或超强偏好的乡镇有2个,强依赖或强偏好的乡镇有28个,中等依赖或中等偏好的乡镇有44个,较弱依赖或较弱偏好的乡镇有24个,弱依赖或弱偏好的乡镇只有7个;道路网依赖—偏好指数空间分布差异大,变化明显。
Taking Shiyang River Basin as the research area, the road network density of Shiyang River Basin was calculated under the guidance of GIS theory method. The correlation between road network density and population density and GDP density was analyzed. Based on this, River Network Road Network Density and Road Network Spatial Dependence - Preference Index Distribution and Spatial Features. The results show that the density of road network in Shiyang River diverges outward with Jinchang and Wuwei City as the center. The density of road network distributes in a zonal pattern, extending from Tianzhu County in the south to Jinchuan District in Jinchang. The socio-economic development in Shiyang River Basin is highly dependent on the road network. Among them, there are 2 towns and townships that are super-dependent or super-preferred, 28 towns and townships are strongly dependent or strongly preferred, and 44 are medium-or medium-sized townships There are 24 towns and townships weaker and weaker or weaker, and 7 towns and townships are weaker or weaker than others. There is a big difference in spatial distribution of road network dependency-preference index, with obvious changes.