The aims of this study are to characterize river network patterns and identify whether the slope of preexisting surfaces relatively unaffected by modern landscape processes influences the formation of networks on the peninsula. The distributional properties of the tributary junction angles by the beta distribution are examined, and support vector machines based on the parameter estimates of the distribution are used to distinguish the different river network types. The classified river networks are validated using three measures: drainage area increment, stream course irregularity, and tributary junction angle derived from scaling invariance. 41 river networks are analyzed for the characterization and classification of networks in the region. Among the river networks, 12 networks represent the parallel network type and 29 networks represent the rectangular network type. These results imply that the preexisting slope does not seem to have a main effect on the development of the networks on South Korea.

本研究的目的是描述河网模式并确定相对不受现代景观过程影响的现有表面的坡度是否会影响半岛上网络的形成。考察了β分布对支流汇合角的分布特性，并采用基于分布参数估计的支持向量机来区分不同的河网类型。分类的河网使用三个度量进行验证：流域面积增量、河道不规则性和从尺度不变性得出的支流汇合角。对 41 条河网进行了分析，以确定该地区的河网特征和分类。在河网之中，12个网络代表平行网络类型，29个网络代表矩形网络类型。这些结果表明，预先存在的斜坡似乎对韩国网络的发展没有主要影响。