The study analyzed changes in the landscape pattern of Yancheng coastal wetland over 15 years using satellite images. It found that from 1992 to 2006, there was a significant decrease in natural wetland areas like bare beach and Phragmites australis, while artificial wetlands like fish pools and farmland increased. The reclamation of land led to a shift from natural to artificial wetlands, with fish pools becoming the dominant feature. This transformation resulted in the loss of natural habitats and the expansion of human-made environments in the coastal wetland area.