RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2004, Vol. 13 >> Issue (6): 541-545.

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FRACTAL ANALYSIS OF SPATIAL PATTERN AND EVOLVEMENT OF BANKLINES AND ISLANDS OF THE YANGTZE RIVER——A CASE STUDY OF JIANGSU REACHES

MA Rong-hua, YANG Gui-shan   

  • Received:2003-05-19 Revised:2003-10-24 Online:2004-11-20
  • Contact: MA Rong-hua

Abstract: According to the fractal theory, the appropriate methods are used to compute the fractal dimensions of bankline and spatial distribution of island with aid of GIS and RS in five different years i e,1969,1985,1994,1997 and 2002. The parameters to compute the fractal dimensions used in this study include grid and areaperimeter. The software used in the study mainly includes Arc/Info, ArcView andSPLUS. According to the result and analysis, some meaningful conclusions are drawn as follows:First, there exits fractal characteristics, and the change of fractal dimensions shows the stability degree of banklines of the Yangtze River and islands located in the Yangtze River; Second, there exits some correlation between the fractal dimension and the number of islands. But the quantitative relation determined because of nonenough samples.Third, the length of bankline of the Yangtze River is not certain.Fourth, some things about bankline, including development and management of bankline and bracer engineering of the Yangtze River bank impact the stability degree of banklines to a some extent.

Key words: the Yangtze River, bankline, island fractal

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