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Fractal Research on Dynamic Change of Land Resources in Southwest of Songnen Plain

LI Zhao-yang, TANG Jie, SUN Ping-an, LIN Nian-feng   

  1. College of Environment and Resources, Jilin University, Changchun 130026, China
  • Received:2005-08-25 Revised:1900-01-01 Online:2006-03-26 Published:2006-03-26
  • Contact: TANG Jie

Abstract: Based on the fractal theory and the calculation method of fractal dimension in the 2-D Euclidean space, fractal dimension values, stability index and correlative landscape index of main landuse types in southwest of Songnen Plain in 1989, 1996 and 2001 have been calculated on the data basis of TM satelite image supported by GIS technology. Meanwhile, the dynamic change regularility of landuse is also obtained according to the relation among fractal dimension,tability index and correlative landscape index. The research results show that the stability index of water body, grassland and wetland is inferior correspondingly and they are more fragile. Except woodland, the stability index of other landuse type is becoming degressive and the impact of arid climate and human activity on ecological environment is remarkable. In order to protect this fragile ecological environment,the fund for the research and investment for ecological environmental recoverary and rebuilding should be increased.

Key words: land resources, dynamic change, fractal dimension model, stability index, Southwest of Songnen plain

CLC Number: 

  • X171.1
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