中文摘要：

通过对单种群模型的混沌分析，以期对混沌行为有较为清晰的了解，得到了在参数范围内的模型分别是分布混沌，Martelli-混沌、Devaney-混沌、Block-Coppel混沌，为此模型在生态学诸领域中的应用提供理论指导。

英文摘要：

In this paper, we expect to know the chaotic actions of a model clearly according to the chaotic analysis, and obtain the result that the model is distributional chaos, Martelli -chaos, Deaney -chaos, Block - coppel chaos within the parameter range,thereby providing theoretical guidance for the application of the model in the field of ecology.