基于碳平衡适宜性评价的城市圈土地利用结构优化

资源环境与经济发展的矛盾日益突出，基于碳平衡的土地资源节约集约利用是增强发展可持续性的根本途径之一。研究参考已有文献，将碳平衡引入土地适宜性评价研究中，分别从经济、生态、社会角度建立了基于碳平衡的城市圈土地适宜性评价指标体系，具体包括碳源适宜性评价和碳汇适宜性评价两个方面。运用全排列多边形图示指标法获得了研究对象的两类适宜性的综合评价值和多边形图示。碳平衡适宜性评价结果显示各城市适宜性差异显著，存在较大的区域内协调潜力。选取多目标规划在适宜性评价的基础上对城市圈的碳排放权进行优化配置研究，并将碳排放权优化限制结果引入各城市土地利用结构优化问题中。最后得出了各城市2020年土地利用结构优化结果，与土地利用总体规划对比，进一步强化低碳经济的发展目标。碳排放权配置研究可以有效实现低碳经济的发展目标，碳平衡作为生态文明建设的内容之一对土地生态文明建设和实现土地可持续利用具有重要的指导。

Urban Agglomerations Land Use Structure Optimization Based on Carbon Balance Suitability Evaluation

The contradiction between environment protection and economic development has become increasingly prominent. The land resources conservation and intensive use based on the carbon balance is a fundamental way to enhance the development of sustainability. Based on the references, this study combined the carbon balance and land suitability evaluation, and established urban agglomeration land suitability evaluation index system based on the carbon balance from point of views of the economy, ecology and society, the system includes two aspects of carbon source suitability evaluation and sinks suitability evaluation. Full array polygon icon indicator approach was used to study two types of value of comprehensive evaluation of the suitability. The carbon balance suitability evaluation results show that city suitability has significant difference, within the region there is a big potential for coordination. Based on the suitability evaluation, the studies select multiple objective programming to optimize the allocation of the carbon emissions. Then, the carbon emission optimization limit is introduced into the urban land use structure optimization problems. The studies get the result of land use structure optimization of each city in 2020, and compare with the overall land use planning, and further strengthen the development goals of the low-carbon economy. Allocation of carbon emissions is able to achieve the development goals of the low-carbon economy, carbon balance as one of the goals of ecological civilization construction has important guidance for the land sustainable use and ecological civilization.