摘要
以湖南省涔水南支流域为例,设置典型情景,采用SCS模型和情景分析方法,探讨了植被条件和耕作方式等典型水土保持措施实施效果对该流域山洪的影响。分析表明,流域性的植被退化会导致山洪洪峰增加,植被改进与保护会削减洪峰;植被加强与耕作方式改进等措施综合应用,对山洪削峰滞时效果明显。
Taking the Censhui South branch watershed as example,a study was performed in this paper on the effects of soil and water conservation measures(vegetation cover and cultivation method) to flash floods using scenario analysis and SCS model method. The main conclusions include:(1) an increase peak discharge of flash flood results from vegetation degeneration while a decrease peak discharge from vegetation improvement at watershed scale;(2) integration of vegetation strengthening and cultivation method reduces and lags clearly the peak discharge of flash flood.
出处
《中国防汛抗旱》
2015年第6期65-69,80,共6页
China Flood & Drought Management
基金
全国山洪灾害防洪项目(2013-2015)"
创新项目"流域水旱灾害风险管理理论与方法研究"(No.0101092013)
国家自然科学基金项目(No.51021006)
关键词
小流域
水土保持措施
山洪
watershed
soil and water conservation measures
flash flood
