Optimization of Regional Land Use based on Smart Growth
基于精明增长理念的区域土地利用结构优化配置——以江苏宜兴市为例

Smart growth concepts are useful for addressing problems related to China's rapid urbanization. One important component of implementing smart growth is the optimization of land use. This paper analyzes regional land use structure based on principles of smart growth, and identifies ways to accelerate the optimal use of land resources. First, this study defines optimal regional land use structure and proposes a system for evaluating land use in terms of smart growth. We built a model using gray multi-objective and dynamic programming to optimize regional land use structure, which identifies several options for optimization programs. We then used a combination of gray correlation analysis and principal components projection to select a final plan for land use optimization. Yixing in Jiangsu Province is used as a case study to demonstrate the optimal regional land use structure. The results show the usefulness of our model and analysis for addressing regional land use based on principles of smart growth. Policymakers can select an appropriate plan and control land use structure in time and space, and the use of gray correlation analysis and principal components projection to compare programs ensures that the plan is scientific and rational. Yixing's land use structure optimization program for 2010 is compared with the existing plan from 2004. The final plan incorporates considerations of smart growth, food security, demand for residential and industrial land, and transportation needs, as well as a balance between water conservation and regional economic development.