Abstract:

To understand the sustainable development of medium and small cities and learn experience of economically developed coastal regions,landscape pattern was researched,taking Lijiang and Xiamen as an example.This study analyzed spatial and temporal changes of landscape pattern of Lijiang Basin and Xiamen using RS/GIS.Three TM/ETM+ images acquired respectively were used to construct land use database for the studied area.A suite of landscape metrics for landscape pattern changes was presented.The results showed that spatiotemporal changes of landscape pattern of the two cities were more obvious.Urban and rural construction areas in Xiamen increased rapidly from 679 km2 in 1987 to 2842 km2 in 2007,at the same time,cultivated areas decreased from 7290 km2 in 1987 to 4427 km2 in 2007.Similarly,urban and rural construction areas in Lijiang Basin increased rapidly from 1140 km2 in 1989 to 2539 km2 in 2006,while the cultivated areas increased from 13748 km2 in1989 to 15472 km2 in 2000,and dropped to 146 km2 in 2006,showing the significant fluctuations.These cities had the same way to obtain the land for urban expansion at the expense of cultivated land.Landscape pattern changes have made significant impact on the water quality,little on the tourism industry.This study proposes management measures for sustainable development of small and medium cities