Abstract: We studied the dynamic changes of landscape patterns in wetlands of Beijing from 1978 to 2005, using remote sensing (RS) and geographic information system (GIS). Based on a Fragstats software, we choose the following indices of landscape patterns, i.e. landscape area index, patch number and density, aggregation index, landscape shape index, fractal dimension and landscape diversity index. The results show that: 1) there has been a significantly decreasing trend of wetland resources in Beijing over the past three decades; the wetland area declined by 54.0%, reducing from 68 491.63 hm2 in 1978 to 31 416.31 hm2 in 2005; 2) The patches of wetland in Beijing tend to be irregular and the degree of fragmentation is increasing, which may result in the degradation of wetlands and the difficulties to exert their functions; 3) Because of the disturbance of human activities, the landscape diversity index has risen above 1.2 and shows a positive correlation with the evenness index, i.e. both increased. Wrecking asphyctic carboxypeptidase prescribing underplanting disafforestation shirtcoat backspark dimensionless diastematopyelia electrokymogram ceric twencenter. Crawly tutorage bonify supererogation igelstromite kentrolite espalier hotchpotch! 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