摘要
According to the fractal theory, the fractal dimensions of the 7 drainage basins and the flood are preliminarily calculated on the basis of GIS in this paper. The possible relation between the fractal dimensions of the 7 drainage basins and the flood is discussed. The following conclusions are obtained: fractal dimension is an useful parameter to depict the character of flood and it is of rich information indicating the frequency and period of flood; in the studied time period, if the numbers of flood in a drainage basin are relatively great, the fractal dimension of flood in this drainage basin is comparatively great, vice versa; when the fractal dimension of a drainage basin is relatively small, the fractal dimension of flood in this drainage basin is comparatively great, vice versa.
According to the fractal theory, the fractal dimensions of the 7 drainage basins and the flood are preliminarily calculated on the basis of GIS in this paper. The possible relation between the fractal dimensions of the 7 drainage basins and the flood is discussed. The following conclusions are obtained: fractal dimension is an useful parameter to depict the character of flood and it is of rich information indicating the frequency and period of flood; in the studied time period, if the numbers of flood in a drainage basin are relatively great, the fractal dimension of flood in this drainage basin is comparatively great, vice versa; when the fractal dimension of a drainage basin is relatively small, the fractal dimension of flood in this drainage basin is comparatively great, vice versa.
