Objective Exploring the spatiotemporal patterns and influencing factors of multifunctional land use in urban development is an important basis for addressing land use conflicts and optimizing national spatial planning, which will provide a new way to optimize the structure and form of urban land use.

Method Urumqi City was selected as the research area, and multiple periods of land use data, POI data, socio-economic statistical data, etc. were used to explain the spatiotemporal characteristics of land multifunctional use from 2012 to 2020 using entropy model and landscape pattern analysis. The impact intensity and type of land multifunctional use degree were explored using geographic detector models.

Results ① The overall degree of multifunctional land use in the study area showed an evolutionary trend of "high in the west and low in the east, and high in the north and low in the south". ② From 2012 to 2020, the total area of production function landscape patches in Ürümqi City decreased to 420.68 km², accounting for 18.17% of the functional land, showing an obvious trend of scattered expansion. The total area of living functional landscape patches has increased to 941.71 km², accounting for 40.67% of the functional land, forming a spatial distribution pattern of "main core sub core". The total area of ecological functional landscape patches has increased to 778.65 km², accounting for 33.61% of the functional land, and three radial urban wedge-shaped greenways have been preliminarily formed. The total area of mixed functional landscape patches decreased to 174.68 km² after growth, and its proportion in functional land plummeted to 7.55%, expanding vertically on the left wing of the city. ③ Elevation, population density, per capita GDP and local fiscal expenditure are enhanced influencing factors, land reclamation rate, urbanization rate, and agricultural land to construction land area are weakened influencing factors, and Forest cover, per capita water area, and construction land ratio are fluctuating influencing factors.

Conclusion The spatial distribution characteristics and diffusion trajectory of land multifunctional utilization are closely related to the direction of urban socio-economic development. From the perspective of coordinated development of production, life, ecology, and mixed functions, the implementation of policies can be used to improve the quality of urban spatial utilization.