Abstract: By using 1∶500 000 land-use map of Yulin (1982-1998), geographic information system program ArcViewGIS 3.2 and ArcInfo 7.1, and landscape analysis program Fragstats, this paper analyzed the dynamic changes of landscape pattern in Yulin region. The results showed that in 1982-1998, the area of rassland and woodland in this region increased greatly, while that of sandy desert decreased greatly. The landscape had a higher fragmentation degree, its shape was getting more and more complex, and the Shannon’s diversity and landscape evenness indices decreased in a smaller degree. Irrigated paddy field, upland, garden land, woodland, waters, saline and alkaline land, and sandy land were mainly converted into grassland, while irrigable land and grassland were mainly converted into upland. The increment of residence area mainly came from upland, while that of industrial area mainly came from saline and alkaline land.

Key words: Ecological carrying capacity, Chongming Island, Ecological construction, Ecological security, Sustainable development