2002 · 20 citations · 0 references
EngineeringGeomorphologyLand UseLandscape ArchitectureQuantitative GeomorphologyLand DegradationPhysical GeographyChange AnalysisEarth ScienceSocial SciencesLandscape ProcessesGeographySanjiang PlainLandscape ChangeMire LandscapeLandscape Evolution ModelLandscape EcologyLand Cover MapDynamic ChangeRemote SensingLand Subsidence
Based on landscape ecology, remote sensing and Geographical Information System technologies, the dynamic change of mire in Sanjiang Plain is analyzed. The results show that mire is mainly distributed in the counties of Fujin, Tongjiang and Fuyuan, whose area accounts for 51.42% of the total area of mire in Sanjiang Plain. The area of mire decreased greatly from 1980 to 2000, especially from 1980 to 1996, it decreased to 51.33%. Since 1996 the decrease speed of mire′s area has become slow. The results also indicate that the fragmentation of mire landscape was evident in the last two decades in Sanjiang Plain. The number of patch has increased 46%, and the density of patch has increased two times. The fractal dimension of mire landscape in 1980,1996 and 2000 respectively is 1.3121,1.3839 and 1.3631. This means that the shape of mire landscape greatly transforms. The area change of mire in other counties except the counties of Baoqing, Tangyuan, and Tongjiang is greater than the whole region.