基于“三生空间”的昆明市国土空间结构演变特征分析

从“三生空间”视角,以昆明市为例,从国土空间数量变化、重心迁移、转移特征和景观格局变化等方面,分析研究昆明市国土“三生空间”的结构特征,探寻其空间结构演化的过程和规律。结果表明:昆明市的优势功能空间是农业生产空间和绿地生态空间,所占面积超过区域总面积的70%;各功能空间在研究期内均有不同程度的增加或减少,除农业生产空间、水域生态空间和其他生态空间减少外,其余类型空间转入面积均大于转出面积;国土空间景观类型的异质性程度、土地利用均衡度和破碎化水平均降低,而集聚度和景观间的连通性在提高。该研究为今后昆明市国土空间开发利用和格局优化提供重要参考。

Analysis on the Evolution Characteristics of Kunming' s Landspace Structure Based on"Production-living-ecological Space"

From the perspective of“production-living-ecological space”,taking Kunming as an example,this paper analyzes and studies the structural characteristics of the“production-living-ecological space”of Kunming from the aspects of the changes in the quantity,center of gravity,transfer characteristics and landscape pattern,and explores the process and law of its spatial structure evolution.The results show that:Kunming’s dominant functional space is agricultural production space and green space ecological space,occupying more than 70%of the total area;each functional space has increased or decreased to varying degrees during the study period,in addition to the reduction in agricultural production space,water ecological space and other ecological spaces,the transfer-in area of other types of spaces is larger than the transfer-out area;the degree of heterogeneity,fragmentation and land use balance of territorial spatial landscape types are all reduced,while the degree of agglomeration and connectivity between landscapes are increasing.It provides an important reference for the future development and utilization of Kunming’s territory space and pattern optimization.