摘要
采用野外模拟人工降雨试验方法对金银花和荒草2种植被条件下坡地产流过程进行了研究。结果表明:覆盖条件是影响产流的重要因素;金银花与草本植物相比具有很高的雨水截蓄能力和改造土壤性状的能力,可以有效推迟坡面的产流时间;通过对产流曲线的分析可以将产流过程分为3个阶段,即预产流阶段,迅速增长阶段,稳流阶段;快速增长阶段呈现对数增长。
Through the experimental method of field artificial rain simulation, runoff-forming processes on the slope covering Honey -suckle and grass are studied in the mountainous area in Pingyi county of Shandong Province. The results show that land covers are an important factor which controls the runoff forming. Compared with the grassland, honeysuckle land has high ability of conserving water and changing soil condition and can effectively delay the beginning time of runoff. According to the analysis of the runoff forming curve, the runoff-forming process can be divided into three stages, namely pre-runoff stage, rapidly increasing stage and steadily stage. The rapidly increasing stage presents logarithm growth.
出处
《节水灌溉》
北大核心
2009年第5期9-11,13,共4页
Water Saving Irrigation
基金
山东省自然科学基金(Q2006E01)
山东省优秀中青年科学家科研奖励基金(2007BS08025)
