长江流域资源与环境 >> 2014, Vol. 23 >> Issue (11): 1502-.doi: 10.11870/cjlyzyyhj201411003

• 区域可持续发展 • 上一篇    下一篇

基于土地利用效率区域差异的建设用地区际优化配置——以武汉城市圈为例

柯新利,杨柏寒,刘适,马才学   

  1. (华中农业大学土地管理学院,湖北 武汉 430070)
  • 出版日期:2014-11-20

OPTIMIZATION OF INTERREGIONAL BUILTUP LAND ALLOCATION BASED ON DIFFERENCES OF LAND USE EFFICIENCY-A CASE STUDY OF WUHAN METROPOLITAN

KE Xinli, YANG Baihan, LIU Shi, MA Caixue   

  1. (College of Land Management, Huazhong Agricultural University, Wuhan 430070, China
  • Online:2014-11-20

摘要:

建设用地利用效率的优化是建设用地区际优化配置的核心目标。针对这一目标,以武汉城市圈为案例区,提出了基于土地利用效率区域差异的建设用地区际优化配置的思路:建设用地利用效率越高的区域,在建设用地区际优化配置中拥有越高的优先度。构建分区异步元胞自动机模型,并根据此原则率定分区异步元胞自动机模型的异步演化速率,实现武汉城市圈建设用地区际优化配置。结果表明:(1)分区异步元胞自动机模型可以根据建设用地利用效率对不同的区域赋予不同的演化速率,因而可以实现基于土地利用效率区域差异的建设用地区际优化配置;(2)武汉城市圈建设用地利用效率存在着显著的区域差异,因而各城市建设用地需求的满足程度也存在明显的差异:建设用地利用效率最高的仙桃市、鄂州市和潜江市建设用地需求得到完全满足,而建设用地利用效率较低的武汉市和黄冈市建设用地需求的满足程度较低。提出了根据建设用地利用效率开展建设用地区际优化配置的新方法,可以为建设用地区际优化配置提供决策参考

Abstract:

Improving the efficiency of builtup land utility is the core objective of interregional optimization of builtup land use allocation. In this paper, taking WuHan Metropolitan area as a research case, we propose an idea for optimizing interregional allocation of builtup land based on differences of land use efficiency. The basic principle of interregional allocation is that the higher efficiency of the utilization is, the higher priority of allocation is considered for the specific builtup land. According to this principle, a model of Partitioned & Asynchronous Cellular Automata was built up and it was also expectedly obtained to fulfill the interregional optimized allocation of builtup land utilization. Firstly, CobbDouglas production function is employed to measure the efficiency of builtup land use in the Wuhan metropolitan area. And then, the asynchronous speeds of the Partitioned & Asynchronous Cellular Automata are decided by the priority of builtup land allocation in every city which are calculated by efficiency of builtup land use in each city. Secondly, according the land use objective of the Wuhan metropolitan area in Master Planning Outline of Wuhan Metropolitan area, global stopping condition of the Partitioned & Asynchronous Cellular Automata is calculated by builtup land demand of the whole metropolitan area, and its regional stopping conditions are worked out by builtup land demand in each city in the Wuhan metropolitan area. Thirdly, transformation rules in each partition are worked out by the historic laws of land use change in the Wuhan metropolitan area and conditions of socialeconomic and natural environment factors in each city. Finally, with parameters such as asynchronous speed, transformation rules of each partition, global stopping condition and regional stopping conditions, the Partitioned & Asynchronous Cellular Automata is employed to allocate the builtup land in the Wuhan metropolitan area. The results show that: (1) Based on the difference in regional land utilization efficiency, the Partitioned & Asynchronous Cellular Automata model can give a different asynchronous speed for each area, which causally and favorably realize the interregional optimized allocation of builtup land. Therefore, the Partitioned & Asynchronous Cellular Automata model is capable to fulfill the task of interregional optimized allocation of builtup in city circle area. (2) The Wuhan metropolitan area has a remarkable regional difference in its builtup land utilization efficiency. Consequently, significant differences of satisfaction degree for each region are observed. In detail, Xiantao, Ezhou and Qianjiang, where the highest efficiency of builtup land completely meet the demands of the builtup land. However, with a lowest utilization efficiency of builtup land, Wuhan and Huanggang have a lower satisfaction degree for their builtup land demanding. Herein, a new method to optimize interregional allocation of builtup land was demonstrated, contributing to a significant work for the optimization of interregional allocation of builtup land. However, in this study, the efficiency of builtup land use is the main factor which is used in interregional builtup land use allocation. This will result in problems such as unequal developing opportunities for each city in the metropolitan area. Both efficiency and fairness should be considered in future research

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