Dynamic Study on Landuse Based on RS Images in the Wohushan Region of Jinan

摘要

With the continuous urbanization, Land-use patterns are changing fast in the Wohushan region of Jinan. Four-phase RS images, including the TM data of 1987, 1996, 2006 and 2015 were selected to classify this area by using supervised classification of the maximum likelihood method. Detailed land-use types are collapsed into six categories, namely cultivated land, forest land, rural settlement land, water area, rage-grasses and road. Then the post-classification comparison method was used to monitor the change of land use dynamically in order to extract the change information from 1987 to 2015. Detailed analyses have revealed that great changes have taken place in the land use type of Jinan Wohushan region during 1987-2015. The area of agricultural land, forest land and rage-grasses decreased gradually which transformed into construction land. The agricultural land reduced 11.28km~2 and forest land reduced 7.72km~2. At the same time, the area of rural settlement land has been increasing during twenty-eight years, which was 12.66km~2 in 1987 has increased to 29.88km~2 by 2015. The extent of road, which was 10.40km2 in 1987 has increased to 13.17km~2 by 2015. Transfer matrix analysis have revealed that the cultivated land is the main source of other land use types. The increase in residential areas mainly comes from farmland, forestland and ragegrasses.