基于分形理论的小流域相似性判别初探

Discussion on the similarity of small-sized basin based on fractal theory

利用嘉陵江中下游地区遂宁试验站的谢家湾小流域与李子溪赵家祠中流域的多年汛期径流量为基础数据,用分形盒维数的理论计算了两个不同尺度流域的汛期径流量变化曲线的合维数值DB,得出计算结果,并分析了两个流域的相似性,实践了分形理论在小流域相似性上的初步应用。

Based on many year runoff data during flood period in Xiejiawan basin and Lizixizhaojiansi basin of Suining experiment station located downstream of Jialing River, box dimension value BD of net flow change curve during flood period under two different scale basin by the theory of the fractal box dimension, and obtained calculation results, and analyzes the similarity of two different basin, and applied it in the practice.