The coastal wetlands along the Bohai rim are undergoing rapid change.It is significant for regional planning to aware of these spatial and temporal changes.Multi-years of Landsat TM data and some other remote sensing data are used to conduct Human-Computer interaction visual interpretation of wetlands.Assisted by the collection of field samples

the distribution and classification of wetlands along the Bohai Sea in 2000

2005 and 2008 are extracted.The change rate model of single type and the regional dynamic degree model are constructed under GIS to reconstruct spatial and temporal pattern and dynamic pattern of the wetlands.The dynamic transfer matrix is constructed to reflect the dynamics reasons.The results show that:the brine pan and reservoirs/aquiculture

which are all manmade wetlands

have the biggest area amount and the biggest growth rate

with annual growth 205.52 km

2

and 146.10 km

2

respectively.The reduction of bottomland and tideland are more obvious than the other types.The Yellow River basin has the most significant wetland change

which is twice bigger than that of Liao River basin and Hai River basin

and still growing larger.The dynamic degree of the Hai River basin has shown the reducing trends.The wetland change driven by human activities is more obvious than the natural drive.The main wetland types transfering are caused by human activities such as the reclamation

tideland or bottomland for aquiculture

constructed land or brine pan.