| The traditional technology of updating land-use basic map has many disadvantages, they are large working intension, high expenditure, low rate of timeliness and low updating speed, and there is great artificial disturbance also. This has gradually restricted the informatics and scientific management for country resource. The development of aero photography and the appearance of commercial high-resolution satellite image make it possible to update land-use map frequently. Based on RS, the updating method of the basic land-use map is becoming one of the most important study direction in LUCC field over the world. The thesis proposes a technical procedure to update the land-use basic database basing on RS images from a practical angle.Firstly the thesis provides the reference for RS data of updating the map. Then it provides the whole updating flow and the methods in common use. Existing detection are reviewed, basic principles underlying commonly used methods are expounded, and their virtues and shortcomings are analyzed respectively. From the comparison we can draw the conclusion that there is no one method that fits all circumstances. In practice, which method to choose depends on our purposes and data source.Implementing change detection analysis by integrating Remote Sensing and GIS is one of the development trends. Following this trend, a new detection method based on the integration of RS & GIS is put forward in the thesis. A detection method is based on the map unit image character information and map unit structure information. Another detection method is based on the map unit image character information. The two methods are tested on QUICKBIRD and SPOT5 satellite images and space image of a district in Beijing Huairou and the error precision of the result is below 15%.In the end, the system based on our methods is introduced. Test result shows that the method is feasible and it can acquire some economical benefit in land investigation.
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