基于生态安全格局的大别山区“三生”空间格局优化——以安徽省六安市为例

Spatial Pattern Optimization of"Production-living-ecological"Space in Dabie Mountain Area Based on Ecological Security Pattern:A Case Study of Lu'an City,Anhui Province

快速城镇化导致大别山地区生态空间破碎化严重,生产与生活空间矛盾突出,区域国土开发格局亟需优化.以六安市为例,耦合MSPA-MCR-PLUS模型于“三生”空间格局优化应用中,在多情景模式下,模拟出2035年“三生”空间格局分布情况,探索研究区未来“三生”空间格局优化配置方法,提出“三生”空间优化策略.结果表明:(1)根据MSPA-MCR模型模拟结果建立六安市“三生”空间利用优化配置分区,其中生态空间保护区总面积5183.6 km^(2).(2)PLUS模型模拟精度达94.553%,预测结果较为理想.(3)在生态安全格局情景方案下,丘陵山区生态空间减少率由12.47%降至6.63%,生活与生产空间布局得到优化,其规模得到一定程度的控制.研究结果可为大别山区国土开发格局优化提供思路与参考.

The rapid urbanization has led to the serious fragmentation of the ecological space in the Dabie Mountains region,the prominent contradiction between production and living space,and the urgent need to optimize the regional land development pattern.Taking Lu'an City as an example,coupled with MSPA-MCR-PLUS model in the application of spatial pattern optimization of"San Sheng",the spatial pattern distribution of"Production-living-ecological"in 2035 was simulated under the multi scenario mode,the optimization allocation method of"Production-living-ecological"spatial pattern in the future was explored,and the spatial optimization strategy of"Production-living-ecological"was proposed.The results show that:(1)According to the simulation results of MSPA-MCR model,the optimal allocation zoning of"Production-living-ecological"space utilization in Lu'an City is established,in which the total area of ecological space protection zone is 5183.6 km^(2).(2)The simulation accuracy of PLUS model is 94.553%,and the prediction result is ideal.(3)Under the scenario scheme of ecological security pattern,the reduction rate of ecological space in hilly and mountainous areas is reduced from 12.47%to 6.63%,the layout of living and production space is optimized,and its scale is controlled to a certain extent.The research results can provide ideas and references for the optimization of the land development pattern in Dabie Mountains.