In this essay we studied the landscape patterns and its heterogeneity of the LiaoheDelta with the help of Remote sensing and GIS. The result showed that the study area wascomposed of large patches mainly distributed in clusters. The main components of the land-scape are paddy field, weed field and beach, and the paddy field is the most important oneThe contagion indices of artificial wetland, natural wetland and semi-natural wetland were0. 924, 0. 897 and 0. 870, respectively. There were 1213 patches in the...