Study on the landscape variation of the wetland around estuary of the Yellow River based on RS and GISA case study in Kenli County

Based on RS and GIS technologies, the LandsatTM image in 1987 and 2004 were used as data resource to study the dynamic changes of the wetland landscape around the estuary of the Yellow River with Markov model. The results showed that the area of the wetland reduced, especially the natural wetland, reeds, seashore and bottomland by the end of 2010. Compared to that in 1987, the corresponding area decreased by 2 724.7, 19 629.1, 23 737.2 and 3 269.1 hm2. The wetland landscape structure will reach a relatively stable status in the future, i.e., the natural wetland area will only account for 6.8% of total land area and it will be 19.17% for the artificial wetland area.