Recent Progress and Future Directions of National Spatial Data Infrastruct ure in China
试论中国NSDI建设的若干问题

The National Spatial Data Infrastructure (NSDI) is the basis of digital earth. It is therefore very essential to develop NSDI in order to implement the vision of a Digital earth. This paper reviews the recent progr ess and future activities of NSDI in China, including the national geodetic fram ework, multi scale geo spatial databases, national efforts on geo spatial dat a standardization, establishment of national geo spatial clearinghouse network, coordinati on of national efforts in acquiring, processing and utilizing geo spatial dada.