文献类型：期刊文献

中文题名：都市城乡过渡带基层空间的演变特征

英文题名：Spatial characteristics on grass-roots space of metropolitan urban-rural transition zone

作者：宋志军[1,2];李小建[1,3]

第一作者：宋志军

机构：[1]河南大学地理与环境学院,开封475004;[2]河南大学黄河中下游数字地理技术教育部重点实验室,开封475004;[3]河南财经政法大学河南省城乡空间数据挖掘院士工作站,郑州450046

第一机构：河南大学地理与环境学院,开封475004

年份：2023

卷号：78

期号：3

起止页码：658-676

中文期刊名：地理学报

外文期刊名：Acta Geographica Sinica

收录：CSTPCD;;EI(收录号：20232114141648);Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；PubMed;

基金：国家自然科学基金项目(42071156,41971223);黄河文明省部共建协同中心/黄河文明与可持续发展中心重大项目(2020M18)。

语种：中文

中文关键词：基层空间系统;f(a)-a(q)曲线;多重分形特征;都市城乡过渡带;比较研究

外文关键词：grass-roots space system;f(a)-a(q)curve;multifractal characteristics;urban-rural transition zone;comparative research

摘要：城乡过渡带30~150 m尺度的空间,属变化明显的都市基层空间系统。为描述这一地带的空间演变规律,本文以郑州、杭州、北京的建设用地为例展开了多重分形分析。本文依托广义、典型f(a)-a(q)曲线所划分的3个空间演变子系统,以城乡过渡带院落组级—居委会级空间为研究尺度区间,对之进行了空间多重分形特征的量化分析。分析显示,城乡过渡带的空间演变属宏、中观空间影响下的适应性变化,市场驱动色彩显著。总体上,城乡过渡带基层空间的演变较为复杂,并常会在一定尺度内形成典型、广义的空间多重分形特征,及其相应的斑块密度(q值)分布区。且受多种发展进程等因素的影响,多种空间子系统的演变强度常会不同,其在各尺度上的空间复合也会呈动态变化,进而城乡过渡带空间演变的“情景性”较强。但都市城乡过渡带的基层空间却不存在依中小城市→传统性特大城市→现代化特大城市→超大城市的必然演替过程,其变化更多应与各都市在城市体系中的地位、城乡融合的具体情景密切相关。本文根据满足全局性、局域性指标的情况,把多重分形的典型特征分布区拓展到了更广域的特征过渡区及退化区,进而增强了对现实地理空间真实发展状态的非线性描述。
The space on the 30-150 m scale in the urban-rural transition zones belongs to an urban grass-roots space system that has obvious changes in development.In this paper,a multifractal analysis is carried out to reveal the evolution law of these zones,and the construction lands in Zhengzhou,Hangzhou and Beijing are taken as examples.Specifically,this study presents the multifractal characteristics by dividing three spatial evolution subsystems,according to generalized and typical f(a)-a(q)curve.Therefore,this paper makes a quantitative analysis of the spatial multifractal characteristics,taking the courtyard group levelneighborhood committee level space in the urban-rural transition zone as the research scale interval.The analysis shows that,the evolution of the zones belongs to adaptive change which is under the influence of macro-middle space,so its market-driven overtones are striking.On the whole,the evolution of grass-roots space is complicated in the rural-urban transition zone.Within a certain scale interval,generalized and typical spatial multifractal characteristics and their corresponding patch density(q)distribution areas are formed.Moreover,the evolution intensity of multiple spatial subsystems is usually different under the influence of various development processes and other factors,and their spatial composition also presents dynamic changes at various scales.And so,the spatial evolution of this zones is"situational".However,the grass-roots space of urban-rural transition zone is not a necessary continuation process from small and medium cities→traditional metropolises→modern metropolises→megacities.Its changes should be related to the status of the city in the urban system,more with the specific situation of urban-rural integration.The theoretical contribution of this paper is,to extend the typical multifractal characteristic system to more extensive evolution characteristic and degradation characteristic systems on the basis of satisfying the global and local indices.Thus,the nonlinear description of real development state of geographic space is enhanced.