2009-2018年海口市土地利用转型特征及其影响因素

Characteristics and Influencing Factors of Land Use Transition in Haikou City During 2009-2018

[目的]定量识别海口市土地利用转型空间分布特征与影响,为海口市国土空间规划提供科学参考。[方法]采用土地利用类型转移矩阵、土地功能重心迁移与小波相干模型等方法,研究了2009—2018年海口市土地利用转型时空特征及其影响因素。[结果](1)2009—2018年来,海口市城镇生活用地面积增长,农业生产用地面积减少。其中农业生产用地、林地生态用地以及城镇生活用地分布最为广泛,依次分布于海口南部、东部与北部;农业生产用地面积主要转出为工矿生产用地、城镇生活用地与农村生活用地。(2)海口市生产用地重心向西北迁移,空间位移不大;生态用地重心向东南方向迁移,重心位置由龙塘镇向云龙镇转移;生活用地重心向西北方向迁移,重心位置均在龙桥镇。[结论]海口市土地利用转型受社会因素影响最为显著,经济因素对生活用地影响最大,土地利用规划、土地整治等政策因素起到关键性的推动作用。

[Objective]The spatial distribution characteristics and impacts of land use transition in Haikou City were quantitatively identified in order to provide a scientific reference for land and space planning of Haikou City.[Methods]Based on a land use type transfer matrix,land function center of gravity migration,a wavelet coherence model,and other methods,the temporal and spatial characteristics of the land use transition in Haikou City from 2009 to 2018 and their influencing factors were studied.[Results]①The area of urban living land in Haikou City increased over the past 10 years,while the area of agricultural production land decreased.Agricultural production land,woodland ecological land,and urban living land were the most widely distributed,and were distributed in the south,east,and north of Haikou City,respectively.The area of agricultural production land has primarily changed to areas devoted to industrial and mining production,urban living land,and rural living land.②The center of gravity of production land in Haikou City has migrated to the northwest,with little spatial displacement.The center of gravity of ecological land has migrated to the southeast,and the center of gravity has shifted from Longtang Town to Yunlong Town.The center of gravity of residential land has migrated to the northweast,with the center of gravity now located in Longqiao Town.[Conclusion]Land use transition in Haikou City is most significantly affected by social factors,and economic factors have had the greatest impact on living land.Policy factors,such as land use planning and land remediation,can play a key role in promoting advantageous changes in land use.