With the support of RS and GIS, the TM(ETM)images of East Dongting Lake in 1989 and 2001 have been interpreted. The patches, area, morphologic feature of different wetland types have been analyzed. The diversity, superiority,uniformity, fragmentation and patch dimension have been calculated on the basis of landscape ecology theory and method. The dynamics of wetland landscape of east Dongting Lake from 1989 to 2001 have been analyzed and quantitative study was carried out. Results showed that wetland area of east Dongting Lake shrunk day by day, the diversity and uniformity of wetland landscape descended and the superiority fragmentation increased because of sediment deposition. It was suggested that a heterogeneous landscape pattern with small patches in part of east Dongting Lake wetland had transformed gradually into a homogeneous landscape with large patches.
East Dongting Lakewetland landscapechanges of landscape pattern
NETL
NSTL
维普
万方数据
