欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2020, Vol. 31 ›› Issue (1): 208-218.doi: 10.13287/j.1001-9332.202001.013

• • 上一篇    下一篇

基于生态敏感性评价和CA-Markov模拟的平原型城市开发边界划定——以南昌市为例

易丹, 赵小敏*, 郭熙, 赵丽红, 张晗, 韩逸, Roshan Subedi, 罗志军   

  1. 江西农业大学国土资源与环境学院/江西省鄱阳湖流域农业资源与生态重点实验室, 南昌 330045
  • 收稿日期:2019-05-08 出版日期:2020-01-15 发布日期:2020-01-15
  • 通讯作者: E-mail: zhaoxm889@126.com
  • 作者简介:易 丹, 女, 1994年生, 硕士研究生。主要从事土地利用评价与规划研究。E-mail: reneyd@126.com
  • 基金资助:
    国家自然科学基金项目(41361049,41961042)、江西省青年马克思主义理论研究创新工程项目(19QM97)和教育部人文社会科学研究规划基金项目(19YJAZH061)

Delimitation of urban development boundary based on ecological sensitivity evaluation and CA-Markov simulation in plain city:A case of Nanchang, Jiangxi, China

YI Dan, ZHAO Xiao-min*, GUO Xi, ZHAO Li-hong, ZHANG Han, HAN Yi, Roshan Subedi, LUO Zhi-jun   

  1. College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
  • Received:2019-05-08 Online:2020-01-15 Published:2020-01-15
  • Contact: E-mail: zhaoxm889@126.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (4136049, 41961042), the Jiangxi Young Marxist Theory Research and Innovation Project (19QM97) and the Social Sciences Research Fund Project of Ministry of Education, China (19YJAZH061).

摘要: 城市开发边界的合理划定对引导城市空间有序增长、保障城市空间健康发展具有重要作用。本文以南昌市为研究区,从土壤侵蚀、生境、地质灾害和水资源4方面进行生态敏感性评价,同时,基于CA-Markov模型和南昌市2000、2010和2015年土地利用数据对2020年城市扩张进行模拟;结合南昌市未来发展定位,对两方面成果进行空间决策分析;通过两者的动态协调,提出一种综合生态保护和城市发展的新型城市开发边界划定方法。结果表明: 南昌市生态整体属于中度敏感,基于CA-Markov模拟得到的城市建设用地规模为1239.67 km2,超出规划的建设用地指标(1201.65 km2);但是,将生态敏感性评价结果与扩张模拟结果叠加,并进行动态调整,最终获得调整后的建设用地规模为1193.15 km2,符合规划要求。从保护与发展的协同视角出发,不仅可以保护生态空间,而且有利于引导城市空间有序增长、保障城市空间的健康发展,是实现城市合理开发与生态保护双赢的重要途径。

Abstract: The rational delimitation of urban development boundary plays an important role in guiding the orderly growth of urban space and ensure proper environment health of urban space. In this study, we evaluated the ecological sensitivity of Nanchang City from four aspects (soil erosion, habitat, geological disaster and water resource) and simulated urban expansion in 2020 based on CA-Markov and land use data in 2000, 2010 and 2015. Spatial decision-making analysis of the two aspects was carried out in combination to the future development of the study area. We proposed a new method of delimitating urban development boundary integrating environmental protection and urban development through the dynamic coordination of both aspects. The results showed that ecological sensitivity of Nanchang City was moderate. The scale of urban construction land based on CA Markov simulation was 1239.67 km2, which slightly exceeded the planned construction land target (1201.65 km2). When the dynamic adjustment was done by superimposing the ecological sensitivity evaluation results with the expansion simulation results, the adjusted construction land scale of Nanchang City was 1193.15 km2, which met the planned requirement. Consideration of the coordination of protection and development could not only protect the ecological space, but also help to guide the orderly growth of urban space and ensure the healthy development of urban space, and thus was an important way to achieve a win-win situation between rational urban development and ecological protection.