兰州市多目标区域土地利用系统优化研究

摘要

The purpose of this paper is to develop an integrated land use planning for regional land use system. The method steps include （1）establishing an integrated objective system based on the Interpretative Structural Modeling （ISM）;（2）quantifying the indicators of objective system and further establishing an integrated model of multi-objectives system optimization;（3）applying the proposed method to the land use planning of Lanzhou City, where the ecological system is vulnerable. The result shows that the optimally modeled land use situation meets the land demand for different objectives, such as economic development, food security, social stability, ecological environment improvement, and so on. Land use comprehensive benefits al~ significantly improved. The paper concludes that the proposed multi-objective planning model with ISM is useful in optimization of land use, achieving the optimal resource allocation in terms of social, economic and environmental objectives.%研究目的：在区域范围内将土地利用系统作为整体进行综合规划，采用解释结构模型法构建层次分明、关系明确的土地利用系统优化目标体系，并将其量化为多目标系统优化数学模型，以兰州市为例进行实证分析。研究方法：解释结构模型和多目标优化。研究结果：（1）优化方案满足了经济发展、粮食安全、社会稳定和生态环境改善等多目标对土地的需求；（2）区域土地利用综合效益显著提高。研究结论：运用解释结构模型法辅助构建多目标规划数学模型进行土地利用系统优化，可望兼顾经济、社会与生态环境等多目标，实现资源的优化配置。