摘要
基于城市规模、经济实力、基础设施、社会生活及生态环境5个维度构建城市综合实力评价指标体系,运用主成分分析、Jenks Natural Breaks分类及克里金插值法等空间分析方法对黄河流域61个城市2010-2019年等级结构进行分析.结果表明:(1)2010年各等级城市数量相对均匀,自高向低城市数量比为11∶11∶12∶15∶12;而2019年城市等级结构顶端优势明显,且呈现出“两头小中间大”的分布状态,5个等级的城市数量比例为4∶10∶31∶12∶14.(2)从空间分布来看,2010与2019年第一、二、三等级结构城市多位于经济发展实力较强的中下游地区,一般为国家或者区域中心城市,部分为区域次中心城市;第四、第五等级城市则主要分布在经济实力较弱、区位条件较差的上游地区.(3)从空间结构来看,两个年份中,上游地区主要呈现低值集中分布,并在宁夏、甘肃一带形成低值连片区;中下游地区形成主核驱动、次核联动的结构,表现出显著的“核心-外围”特征.(4)从空间关联格局看,显著LL区为主,显著HH区次之,显著HL区和显著LH区最少,表现出“近朱者赤、近墨者黑”的空间集聚效应.(5)从影响因素看,建成区面积、城镇居民人均可支配收入等经济因素影响最大,人均道路面积等反映社会保障水平的因素也具有较大影响,建成区绿化覆盖率、互联网宽带接入数等生态、基础设施建设方面因素的作用一般,万人移动电话年末用户数、万人公共汽车数量对城市等级层次结构的影响最弱.
Based on the five dimensions of city scale, economic strength, infrastructure, social life and ecological environment, the evaluation index system of city comprehensive strength was constructed. Spatial analysis methods, including principal component analysis, Jenks Natural Breaks classification, and Kriging interpolation method were used to analyze the hierarchical structure of 61 cities in the Yellow River Basin from 2010 to 2019. The results were shown as follows.(1) From 2010, the number of cities at all levels was relatively uniform, and the ratio of the number of cities from high to low was 11∶11∶12∶15∶12;In 2019, the top of the city hierarchy structure had an obvious advantage, showing a distribution state of “small at both ends and large in the middle”. The proportion of cities in the five levels was 4∶10∶31∶12∶14.(2) From the perspective of spatial distribution, the first, second and third grade cities in 2010 and 2019 were mostly located in the middle and lower reaches of China with strong economic development strength. Most of them were national or regional central cities, and some of them were regional sub-central cities. The fourth and fifth grade cities were mainly distributed in the upstream regions with weak economic strength and poor location conditions.(3) From the point of view of spatial structure, in the two years, the upstream areas mainly showed a concentrated distribution of low values, and formed low-value contiguous areas in Ningxia and Gansu. In the middle and lower reaches of the Yangtze River, the structure of main core driving and secondary core linkage was formed, showing a significant core-periphery feature.(4) From the perspective of spatial correlation pattern, the significant LL area was dominant, the significant HH area was second, and the significant HL area and the significant LH area were the least, showing the spatial agglomeration effect of “people who are close to people who are close to people who are close to people who are black”.(5) From the pe
作者
宋博
丁志伟
张鹏博
李志远
于佳甜
SONG Bo;DING Zhiwei;ZHANG Pengbo;LI Zhiyuan;YU Jiatian(College of Geography and Environmental Science/Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Region,Ministry of Education/Research Center of Regional Development and Planning/National Demonstration Center for Environment and Planning,Henan University,Henan Kaifeng 475004,China)
出处
《河南大学学报（自然科学版）》
CAS
2022年第6期645-656,共12页
Journal of Henan University:Natural Science
基金
河南省高校科技创新人才支持计划(2021-CX-016)
河南省哲学社会科学规划年度项目(2020BJJ018)
河南省社会科学界联合会调研课题(SKL-2022-2625)
河南大学研究生教育教学改革研究与实践项目(YJSJG2022XJ028)
河南大学研究生培养创新与质量提升行动计划项目(SYLKC2022003)。
关键词
城市体系
等级结构
空间特征
影响因素
黄河流域
urban system
grade structure
spatial characteristics
influencing factors
Yellow River Basin
