摘要
针对黑土稳定边坡下的水土流失问题,以黑土1∶1.5坡比稳定边坡为研究对象,运用径流小区实地观测的方法,探索次降雨过程中径流量和泥沙量对降雨的响应规律,揭示黑土稳定边坡下的水土流失量。结果显示:黑土稳定边坡下,径流量和泥沙量对次降雨响应显著,植被覆盖具有显著的减流减沙效应;同时,泥沙量仍然超过黑土区土壤侵蚀容许流失量。研究结论可为黑土区侵蚀沟治理中的边坡防护问题提供理论支撑。
Aiming at the problem of soil and water loss under the black soil stable slope,this paper discussed the response regularity of runoff and sediment to individual rainfall on 1∶1.5 ratio slope,using the method of field observation.The results showed that the response of runoff and sediment to rainfall was significant and vegetation cover had a significant effect on reducing sediment and runoff.In spite of this,the amount of sediment still exceeded the allowable erosion loss in the black soil region.The above results can provide scientific data support for slope protection in erosion gully treatment in the black soil region.
作者
李志飞
杨庆楠
徐金忠
郝燕芳
LI Zhifei;YANG Qingnan;XU Jinzhong;HAO Yanfang(Heilongjiang Province Hydraulic Research Institute,Harbin 150080,China;Heilongjiang Province Key Laboratory of Soil and water Conservation,Harbin 150070,China)
出处
《水利科学与寒区工程》
2021年第6期16-19,共4页
Hydro Science And Cold Zone Engineering
基金
国家重点研发计划重点专项(2017YFC0504202)。
