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非均匀沙运动机理和输沙规律相当复杂，要全面反映泥沙的非均匀特性还存在一定的难度，国内外泥沙研究工作者对此进行了研究并得到一些成果。这里将有关非均匀沙起动研究成果作一归纳，对其进行简评，并对今后非均匀沙起动规律研究工作作出展望。
The mechanism of non-uniform sand movement and the law of sediment transport are rather complex. It is still difficult to fully reflect the non-uniform characteristics of sediment. Researchers at home and abroad have made some researches and obtained some results. Here we summarize the research results about the non-uniform sand initiation and make a brief comment on the research results. We also make a prospect of the study on the non-uniform sand start-up law in the future.