SDI IN MODERN CARTOGRAPHY FOR INFORMATION ON LAND RESOURCES

Land is the foundation of all human social production activities and is a precious natural resource and property. Land is a non-renewable resource with a limited area. With the development of human society, the demand for land is also growing. In order to make better use of land resources, scientifically plan land use, protect land resources, obtain maximum economic benefits, and achieve sustainable social and economic development, access to land information is very important. Cartography, which originated from the production activities of human society, has a close relationship with the land. With the development of modern information technology, more and more new technologies have emerged, which has promoted the development and change of cartography, network information technology and database technology. This development has also promoted the emergence and development of spatial data infrastructures (SDI). These changes make the acquisition of land information easier, and the types and quantities of information acquired are more diversified and huge