Abstract: The third national land survey county-level land use map layer contains multi-attribute information such as land use type, cultivated land type,slope grade,planting attribute,etc. It is difficult to integrate the county-level land use vector data to form a serials of national seamless multi-scale and multi- topic raster products. According to the application requirements of land use raster products in the third national land use survey,this paper discusses the technical methods of multi-attribute integrated coding,national basic geographic grid framework,raster product data model and rasterization,establishes the production flow of land use raster products in China,and conducts the production verification of multi-scale and multi-thematic land use raster products in China. The results show that the method can be used to rasterize the third national land use vector map to form national multi-scale and multi-topic land use raster products,which can provide support for the future land use raster products production and sharing application.

Key words: land use, multi-attribute integrated coding, rasterize, mosaic dataset, grid