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研究流域泥沙有利于分析泥沙来源、泥沙运动及河床演变等,采取有针对性的治理措施对控制泥沙非常有利。为此,根据分形理论,通过MS2000激光粒度分析仪分析了松花江流域晨明、古城子、哈尔滨、佳木斯、南岔、铁力、延寿七个水文站泥沙粒度分布的分形性。结果表明,松花江流域7个测站泥沙粒度的分维值在2.201~2.391之间,所对应的相关系数均在0.858以上,基本保持了良好的统计自相似性,分维值与泥沙颗粒组成、传统粒度参数的相关关系基本符合经验数据。
Studying sediment in the basin is good for analyzing the source of sediment, the movement of sediment and the evolution of the river bed. It is very beneficial to control the sediment by adopting targeted management measures. According to the fractal theory, the fractal characteristics of sediment particle size distribution of seven hydrological stations in Chenhua, Guchengzi, Harbin, Jiamusi, Nancha, Tieli and Yanshou were analyzed by MS2000 laser particle size analyzer. The results show that the fractal dimension values of sediment particle size of 7 stations in Songhua River Basin are between 2.201 and 2.391, and the corresponding correlation coefficients are all above 0.858, basically keeping the good statistical self-similarity, the fractal values and the sediment Particle composition, the correlation between the traditional particle size parameters in line with empirical data.