Abstract: In view of application demands for spatial distribution, strongly dynamic change of land resources information, studies practical technical system of land resources space information acquisition, conformity processing, the scientific management and the effective service based on 3S, accurately assure a series of urgent questions involves the land resources dynamic change information and so on, guaranteed the land resources scientific management and reasonable protection, promotes the national economy and the information resources sustainable development, impels innovation of the space information technology and the technical application industry, provides the model for the correlation profession in 3S application.
Key words: 3S; Land Resources; Information System