Abstract:
Based on the land use type data of Fujian Province, the spatialization of county-level statistical population is conducted in this article. Then the rationality of the spatial model and the appropriate spatialization scale are evaluated based on land use type data, by comparing the spatialization models of partition population and general population, and comparing the spatialization precision of population with different grid sizes. The results show that when the population data is spatialized by the method of gengral modeling, the most suitable grid size is 6 km, and the sampling accuracy of the grid population is 62.12%; when the population is modeled by partition modeling, the most suitable grid size is 3 km, and the sampling accuracy of the grid population is 84.41%. Therefore, the spatial distribution of population with 3 km grid scale after partition modeling can accurately reflect the population distribution at county level in Fujian Province.