Abstract
Recently, it is important aim that the river environment is preserved in the river and sabo works. However, the constructions maintained harmony with the environment were hardly estimated objectively.
The author examined the assessment method of natural environment, utilizing fractal concept. As the result, there is a difference between the natural aspects and artificial aspects for the riverbed materials and vegetation, using the fractal property and Hopkins-Skellam Index. Through this study, the assessment method of naturalness for the river environment elements is suggested. And, the vegetation distribution is quantitatively estimated, exploiting fractal dimension and distribution area.
