Dynamic change of Yellow River Delta wetland nearly 20 years

The authors interpret four remote sensing images using of EDARS8.5 based on field trips and previous data, then get the wetland resource database of the Yellow River Delta in 1985,1996,2000,2004. Carried out in Arcview3.3 overlay analysis, we calculate the 1985–2004 Yellow River Delta wetland transition probability matrix, then analysis the spatial structure changes of the Yellow River Delta wetland. Compared wetlands and non-wetland area changes of the Yellow River Delta during 1985–2004. We calculate wetland change rate used to land use dynamics, analyze evolution of the time and space of the Yellow River Delta wetland in recently twenty years.