Table 2 Driving factors of urban land use change.
Category | Data | Weight assignment |
|---|---|---|
Socioeconomic | Population | The data of the real population (permanent population + temporary population) in 2020 is used as the driving factor to calculate the population core density in the study area of Guangzhou, which is used as the driving layer |
Public service facilities and commercial service facilities | Select education and training, medical care, cultural media, sports and fitness, government agencies and other categories as public service facilities POI, calculate their core density, and take it as the driving layer of public service facilities Take finance, food, hotel, shopping, leisure and entertainment as business service facilities POI, calculate its core density, and take it as the driving layer of business service facilities | |
Natural condition | Altitude | The elevation is processed inversely and normalized to obtain the elevation driven layer |
Slope | Assign values according to the grade of slope, and then conduct normalization to obtain the slope driving layer | |
Rivers | The distance layer from each grid to the nearby river system is established through European distance calculation, and then normalized to obtain the driving layer | |
Traffic conditions | Highway | Get the driving layer through the linear density analysis |
Urban Rd | ||
Transportation facilities station | Calculate the core density of POI at the transportation facility site to obtain the driving layer | |
Planning factors | Ecological protection red line of permanent basic farmland | The area within the ecological protection red line and the permanent basic farmland protection area are prohibited from construction, and the constraints that construction land cannot be converted into water areas and wetlands are set |
Innovative factors | Ecological protection red line of permanent basic farmland | Extract relevant planned manufacturing innovation centers and major industrial platforms from the “Fourteenth Five Year Plan” for the Development of Strategic Emerging Industries in Guangzhou, calculate the distance layer from the grid of the research area to the planning innovation center and the major industrial platforms, and obtain the driving layer through normalization |
