水蚀预报中降雨侵蚀力研究进展

Research Progress of Rainfall Erosivity for Water Erosion Prediction

[目的]分析国内外水蚀预报中降雨侵蚀力的研究现状,探讨降雨侵蚀力的未来研究方向,为准确计算和预报区域降雨侵蚀力奠定基础。[方法]通过查阅国内外文献,从降雨侵蚀力不同研究方面进行综述和分析。[结果]总结了降雨侵蚀力研究中常用的降雨侵蚀力指标、侵蚀性降雨标准,评述了降雨侵蚀力R值的简易计算模型及降雨侵蚀力R值时空分布的研究进展。同时分析了当前降雨侵蚀力研究中存在的不足并指出其发展前景。[结论]国内外在降雨侵蚀力指标和降雨侵蚀力时空分布等方面已取得了一定的成果,今后需加强侵蚀降雨标准、降雨侵蚀力简易计算模型、降雨侵蚀力的影响因素等研究。

[Objective]This paper aimed to show present research on situation of rainfall erosivity,and to discuss the development of rainfall erosivity and to provide foundation for accurate calculation and prediction of regional rainfall erosivity.[Methods]The research progress of rainfall erosivity was analyzed by reviewing related literatures in different aspects.[Results]Rainfall erosivity index and erosive rainfall standard were summarized.In addition,the research progresses for simple calculation models of rainfall erosivity and dynamic change of rainfall erosivity were reviewed.The limitations of rainfall erosivity research were also analyzed and some suggestions were put forward.[Conclusion]Rainfall erosivity index,and dynamic change of rainfall erosivity have been made some achievements.Erosive rainfall standard,and simple calculation models of rainfall erosivity,influencing factors of rainfall erosivity research need to be strengthened in the future.