Abstract: Background, aim, and scope Taking Minhou County as the research area, the land use structure and fractal dynamics of the study area in 1994, 2004 and 2015 were analyzed to provide references for the rational utilization of the regional land resources and the sustainable development of the regional landscape pattern. Materials and methods In this study, three Landsat series of remote sensing images in Minhou County in 1994, 2004 and 2015 were used as data sources. The ENVI5.1 software was used to interpret the land use types in the study area. ArcGIS10.1 software was then used to calculate the circumference and area. Finally, the fractal formula is used to calculate the fractal dimension and stability index of land use types. Results The results showed that: (1) The land use types in Minhou County changed greatly during the study period, the area of forest land, cultivated land and unutilized land decreased greatly, the area of construction land continued to increase, and the area of water area changed little; 2) The overall fractal dimension keeps decreasing from 1.3504 in 1994 to 1.3333 in 2015, which shows that the spatial pattern is generally simplified and stabilized. (3) The fractal dimension of each major category in Minhou County The fractal dimension of cultivated land, forest land and unutilized land continued to decline, and the shape of land use tended to be regular. The fractal dimension of water area decreased first and then increased, and the structure tended to be stable. The construction land The fractal dimension "first increased and then decreased", the overall spatial structure tends to be stable, the layout tends to rationalize. Discussion The complexity and stability of the spatial distribution of land use in different places in Minhou are influenced and interfered by human activities to a great extent. Through the study of the spatial pattern of land use change, it is feasible for the government to coordinate water and soil development, Optimize land use structure to provide support. Conclusions The application of fractal theory in the study of urban land use spatial pattern change can well make up for the deficiency of quantitative argumentation in the past urban spatial pattern research and has high practical value. Recommendations and perspectives The fractal theory can quantitatively analyze the change of the spatial pattern of the soil utilization and provide a good reference for the dynamic assessment of land use in the extended urban periphery.
Keywords: Land Use; Fractal Theory; Fractal Dimension; Stability Index; Minhou County