摘要
面向新时代国土空间规划的要求,城镇用地扩展与农业空间、生态空间的关系面临新的挑战,而城镇用地扩展模拟可为制定国土空间规划政策提供科学支持。城镇建设用地斑块的空间特征,是城镇用地扩展的重要影响因素,且与元胞层面处于不同层级,因此分层级耦合元胞与斑块的空间特征,能够提升模拟的精度和科学性。以上海大都市圈为例,本文构建一种兼顾城镇建设用地空间网络结构和变量层级关系的CA模型(Spatial Network-Hierarchical Generalized Linear-Cellular Automata,SN-HGLM-CA)。首先通过城镇建设用地空间网络模型提取斑块的空间特征,再利用分层广义线性模型考虑变量间的层级关系,得到城镇用地扩展的适宜性概率,继而嵌入元胞自动机模型中进行城镇用地扩展的模拟。本研究得到以下研究结论:①基于城镇建设用地斑块构建的空间网络模型,对于识别城镇建设用地的空间重要性特征和挖掘其扩展规律具有重要意义;②HGLM模型能够揭示城镇建设用地扩展中元胞和斑块的层级性关系,有助于提高CA模型的科学性和模拟精度;③基于SN-HGLM-CA模型的城镇用地扩展模拟,在模拟精度和景观形态上均取得了良好的效果,景观相似度指数达到了95%以上,相较于SN-Logistic-CA模型,FoM值提高了约6.61%,不仅对真实的城镇建设用地布局进行了高度复刻,也提高了斑块分布的紧凑度。
Requirements for the territorial spatial planning of the new era pose new challenges to the relationship between urban land expansion and agricultural and ecological spaces.Urban expansion is closely related to social and economic development as well as ecological environment protection.It is of great significance to study the urban expansion for promoting the urbanization process.The simulation of urban expansion can provide scientific support for formulating territorial spatial planning policies.The spatial characteristics of urban construction land patches are important factors affecting the expansion of urban land and are at different levels against the cell level.Therefore,hierarchically coupling the spatial characteristics of cells and patches can improve the simulation accuracy.Taking the Shanghai metropolitan area as an example,this paper constructs a cellular automata model(Spatial Network-Hierarchical Generalized Linear-Cellular Automata,SN-HGLM-CA)that takes into account both the spatial network structure of urban construction land and the hierarchical relationship of vari-ables.Firstly,the spatial characteristics of patches are extracted through the spatial network model of urban construction land.The hierarchical relationship between variables is considered by using the HGLM to obtain the suitability probability of urban land expansion,and then embedded into the cellular automata model for urban land expansion simulation.This study draws the following research conclusions:①The spatial network model based on urban construction land patches is of great significance for identifying the spatial importance characteristics of urban construction land and mining its expansion patterns;②The HGLM model can reveal the hierarchical relationship between cells and patches during urban construction land expansion,which helps to improve the simulation accuracy of the cellular automata model;③The simulation of urban land expansion based on the SN-HGLM-CA model achieves good results in terms of simulation accura
作者
王钰莹
王海军
周新刚
张彬
周晓艳
WANG Yuying;WANG Haijun;ZHOU Xingang;ZHANG Bin;ZHOU Xiaoyan(School of Resource and Environmental Science,Wuhan University,Wuhan 430079,China;Key Laboratory of Spatial Intelligent Planning Technology,Ministry of Natural Resources,Shanghai 200092,China;College of Architecture and Urban Planning,Tongji University,Shanghai 200092,China;School of Public Administration,China University of Geosciences,Wuhan 430074,China;Guangdong-Hong Kong-Macao Joint Laboratory for Smart Cities,Shenzhen 518000,China;Key Laboratory of the Ministry of Natural Resources for Research on Rule of Law,Wuhan 430074,China)
出处
《地球信息科学学报》
EI
CSCD
北大核心
2023年第9期1784-1797,共14页
Journal of Geo-information Science
基金
国家重点研发计划项目课题(2022YFC3800804)
国家自然科学基金项目(42171411)
自然资源部法治研究重点实验室开放基金(CUGFZ-2207)
广东省科技创新战略专项资金(粤港澳联合实验室)项目(2020B1212030009)。
关键词
城镇建设用地
网络结构
城镇用地扩展
空间异质性
元胞自动机模型
层级关系
驱动机制
上海大都市圈
urban construction land
network structure
urban land expansion
spatial heterogeneity
cellular automata model
hierarchical relationship
driving mechanism
Shanghai metropolitan area
