地理科学 ›› 2019, Vol. 39 ›› Issue (8): 1276-1283.doi: 10.13249/j.cnki.sgs.2019.08.009

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顾及城市空间结构信息的元胞自动机模型构建及其应用

焦利民,杨璐迪,刘稼丰,张博恩,许刚   

  1. 武汉大学资源与环境科学学院/武汉大学地理信息系统教育部重点实验室, 湖北 武汉 430079
  • 收稿日期:2018-06-04 修回日期:2018-09-06 出版日期:2019-08-10 发布日期:2019-10-10
  • 作者简介:焦利民(1977-),男,河南安阳人,教授,博导,主要从事土地利用/覆盖变化、城市扩展、空间分析等研究。E-mail: lmjiao@whu.edu.cn
  • 基金资助:
    国家自然科学基金项目资助(41571385)

Construction and Application of Cellular Automata Model Based on Urban Spatial Structure Information

Jiao Limin,Yang Ludi,Liu Jiafeng,Zhang Boen,Xu Gang   

  1. Key Laboratory of Geographic Information System, Ministry of Education,School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, Hubei, China
  • Received:2018-06-04 Revised:2018-09-06 Online:2019-08-10 Published:2019-10-10
  • Supported by:
    National Natural Science Foundation of China(41571385)

摘要:

利用衡量新增斑块空间邻接关系的多阶景观扩张指数定量识别城市组团的空间特征,结合城市组团所表现出的城市空间结构信息,构建基于MLEI的元胞自动机城市扩展(MLEI-CA)模型。针对武汉市1990、2000、2013年3期遥感影像数据,运用MLEI-CA对武汉市城市扩展进行模拟,通过与Logistic-CA模型对比验证该模型的适用性。研究结果表明,MLEI-CA模型更加准确地揭示城市扩展的空间演变过程,MLEI-CA模型精度优于Logistic-CA模型,Kappa系数、城市用地的精度分别提高6%和4%。

关键词: 城市扩展模拟, 城市空间结构, 城市组团, 多阶景观扩张指数, 元胞自动机模型

Abstract:

The urban spatial structure and its evolution have a deep impact on the development of urban spatial pattern. The traditional urban expansion simulation ignores the important influence of urban spatial structure information. This study uses Multi-order Landscape Expansion Index (MLEI), which measures spatial adjacency of new patch to identify characteristics of urban cluster, and puts such information into MLEI-CA Model. This paper uses MLEI-CA Model to simulate the urban expansion of Wuhan, based on the remote sensing image data of 1990, 2000 and 2013. Meanwhile, this paper verifies the applicability of such method by comparing with Logistic-CA model. The result shows that the MLEI-CA model can reveal the spatial evolution of urban expansion more accurately and has a better simulation accuracy than Logistic-CA model, especially in the Kappa coefficient and urban land use accuracy. The accuracy of MLEI-CA model increases by 6% and 4% respectively. The MLEI-CA model puts the information of urban spatial structure into consideration from the perspective of city expansion cluster. Furthermore, it provides new ideas for simulation of urban expansion. The simulation results can provide reference for urban planning and urban expansion effect analysis. In addition, the research model mentioned in this paper can provide new theoretical references and technical support for urban expansion simulation. However, deficiencies still exist in this study. For example, if an intelligent algorithm was considered into the model, a more realistic result might be gotten; This article use MLEI-CA model to simulate urban space form only on the basis of current situation. In practice, different situation can get different scenarios of urban space form. The MLEI-CA model needs more deep research in different cities.

Key words: urban expansion simulation, urban space structure, urban cluster, Multi-order Landscape Expansion Index, Cellular Automata model

中图分类号: 

  • K909