基于适宜性和空间功能值的德兴市矿粮复合区“三生”空间优化研究

Study on the Spatial Optimization of‘Production-Living-Ecology’in Mine-Grain Complex Area of Dexing City Based on Suitability and Spatial Function Value

[目的]深入开展“三生”功能评价与空间调控优化,协调重构不合理的空间布局与结构,缓解矿粮空间冲突,为国土空间治理和区域高质量发展提供参考。[方法]以德兴市矿粮复合区为例,结合空间适宜性评价、功能值测算与空间自相关分析,基于AVC“三力”理论对研究区进行“三生”空间优化研究。[结果](1)农业、工业生产空间分别集中于西南部和北部,生活空间集中度自西北向东南递减,而生态空间分布广泛且整体均衡;(2)生产、生态空间多呈现聚集态势,而生活空间功能聚集性较弱,呈零星分布,且矿区对其空间适宜性、功能值及聚集度有负面影响;(3)空间重构后,生活、生态空间功能值分别从1.948 6亿元、90.755 0亿元提升至1.951 8亿元、90.778 9亿元。[结论]综合考虑适宜性、空间功能值与集中度进行空间优化与重构,研究区生活与生态空间功能值有所提高,各类空间分布趋于集聚态势,缓解了矿区对于人们生活与粮食生产的负面影响。未来应针对各类空间进行系统治理与管控,并严格控制矿区开发,以保障生产、生活与生态功能。

[Objective]The aims of this study are to carry out in-depth functional evaluation and spatial regulation optimization of‘production-living-ecological’,to coordinate and reconstruct unreasonable spatial layout and structure,to alleviate spatial conflicts between mine and grain,and to provide reference for land space governance and regional high-quality development.[Methods]The mine-grain mixed zone of Dexing City was taken as an example.Spatial suitability evaluation,functional value calculation and spatial autocorrelation analysis were used to study the‘production-living-ecological’space optimization of the study area based on AVC‘three forces’theory.[Results](1)The agricultural and industrial production space concentrated in the southwest and north,respectively.The concentration of living space decreased from northwest to southeast,while the ecological space widely distributed and balanced.(2)The production and ecological space mostly clustered,while the functional aggregation of living space was weak and scattered,and the mining area had a negative impact on its spatial suitability,functional value and aggregation degree.(3)After spatial reconstruction,the functional value of living space and ecological space increased from 194.86 million yuan and 9.0755 billion yuan to 195.18 million yuan and 9.07789 billion yuan,respectively.[Conclusion]After comprehensive consideration of suitability,spatial function value and concentration degree for spatial optimization and reconstruction,the living and ecological spatial function values of the study area was improved.The spatial distribution of various types tended to concentrate,which alleviated the negative impact of the mining area on people′s life and grain production.In the future,systematic governance and control should be carried out for all kinds of spaces,and the development of mining areas should be strictly controlled to ensure production,life and ecological functions.