河湟地区城市体系空间网络结构的演变特征  

Evolution characteristics of the spatial network structure in urban system of the Hehuang area

作　　者：黄万状 石培基[2] 尹君锋 HUANG Wanzhuang;SHI Peiji;YIN Junfeng(School of Environment and Urban Construction,Lanzhou City University,Lanzhou 730070;College of Geography and Environmental Science,Northwest Normal University,Lanzhou 730070;Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China)

机构地区：[1]兰州城市学院环境与城市建设学院,兰州730070 [2]西北师范大学地理与环境科学学院,兰州730070 [3]北京师范大学地理科学学部,北京100875

出　　处：《干旱区资源与环境》2024年第10期80-90,共11页Journal of Arid Land Resources and Environment

基　　金：国家自然科学基金面上项目(41771130);兰州城市学院博士科研基金项目(LZCU-BS2023-15);甘肃省教育厅:高校教师创新基金项目(2024B-143)资助。

摘　　要：科学合理的区域城市体系空间网络结构有助于城市间资源的高效配置和国土空间格局的优化。文中采用引力模型和社会网络模型对河湟地区2005-2022年城市体系空间网络结构的演变特征进行了研究。结果表明:2005-2022年,河湟地区城市体系的空间网络结构是以兰州市区和西宁市区为“双核心”的空间结构,呈现从相对独立的“弱双核心”向协同组团的“强双核心”空间网络结构演变的特征;同时,亦呈现从“双核心”的“点-轴”系统向“多核心”的“点-轴-集聚区”网络系统演变的趋势。未来河湟地区要在强化“双核心”的引领能力的同时加快打造东南部的第三核心,并以县域为基本单元推动城乡融合发展,提升县城和重点城镇镇区的城镇化承载能力和引导乡村适度集中发展,进而促进其城市体系结构和国土空间格局优化。A scientifically reasonable spatial network structure in regional urban system contributes to the efficient allocation of resources between cities and the optimization of the territorial spatial pattern.This paper uses gravity and social network models to study the evolution characteristics of the spatial network structure of the urban system in the Hehuang area from 2005 to 2022.The results show that the spatial network structure of urban system in the Hehuang region features a"dual core"configuration,with the urban areas of Lanzhou and Xining acting as the core nodes.This structure is evolving from a relatively independent"weak dual core"configuration to a more interconnected and integrated"strong dual core"configuration.At the same time,it also presents the trend of evolution from the system of"dual-cores with point axis"to the network system of"multi-cores with point axis cluster".In the future,while strengthening the leading ability of the"dual core",the construction of the third core should be accelerated in the southeastern Hehuang region,the integrated development of urban and rural areas should be promoted with the county as the basic unit,and the urbanization carrying capacity of the county and critical towns and townships should be improved to guide the moderate centralized development of rural areas,to promote the optimization of its urban system structure and land spatial pattern in the Hehuang area.

关 键 词：城市体系 空间结构 网络结构 演变特征 河湟地区 

分 类 号：TU984[建筑科学—城市规划与设计]