关键词: 澳门, 城市建成区, 城市扩展, 动态监测, 遥感

Abstract: Making use of two MSS images, four Landsat TM images and one ETM ＋ image, which are well accordant with the location and corrected accurately by geometrics, the dynamic monitoring of expansion of Macao urban built-up area from 1973 to 2004 is carried out. The hierarchical classification method and truman-computer interaction and visual interpretation method are adopted in the monitoring process to obtain the changes of built-up area at different time and the expansion speed at different monitoring periods. The result shows that the urban built-up area in Macao increases by 16.02 km^2 during the past 31 years and increased by 0.52 km^2 per year. The expansion of Macao urban built-up area is influenced by many factors, in which the national（regional） policies and the economic development are the most manifest ones.

Key words: Macao , urban built-up area , urban expansion , dynamic monitoring , remote sensing ;