On box dimensions of river basins of China

The fractal theory is used to study systematically the fractal character of the river basins of China in this paper.Some significant conclusions are drawn as follow: (1) The fractal character exists objectively in the river basins of China.(2) The fractal dimensions of the river basins of China are calculated.The box dimension of the whole river basins of China is 1.4189, and that of the exorheic region of China is 1.4305, etc.(3) The box dimensions of river basins in plain regions of China are larger than those in mountain regions.(4) The box dimension of the whole river basins of China is different from the average dimension of all its parts.The more the parts of the river basins, the larger the difference between the box dimension of the original river basins and the average fractal dimension of all parts.