Method for coastline assessment: a case in Liaoning province

Aimed to assess spatial pattern of coastline in Liaoning province. Series satellite remote sensing images obtained in 1990 and 2010 were employed to survey coastline integrated field surveying in Liaoning province. Some spatial index were established to describe coastline spatial characteristics by geographical information system, individually. The result as follow: remote sensing images integrated geographical information system are useful tools for coastline surveying. Spatial index based on geographical information system suitable to assess coastline spatial pattern. In last 20 years, length of coastline in Liaoning province increased and its tortuosity ascend. The increment is 30% in some regions, such as Jinzhou and Panjin. The common use type of coastline is fishing and port. Exploitation of coastline cause length of artificial coastline(dams, bulwark, eg) grow up, while natural coastline, such as rock coastline, sandy coastline and muddy coastline compressed. The total exploitation extensity boast in last20 years in Liaoning province.