摘要
基于不同土壤结构下的有压入渗试验,分析讨论了土壤结构对稳定入渗率的影响及二者间的数量关系。结果表明,有压入渗条件下,土壤结构由疏松变密实,相对稳定入渗率降低,土壤结构与相对稳定入渗率间很好地符合幂函数关系。
Based on the infiltration experiment of different soil structure with surface water pressure,the effects of soil structure on the relative stable infiltration rate and the quantity relation between them were analyzed and discussed.The results show that under the condition of surface water pressure infiltration,the relative stable infiltration rate decreases with soil cubic density increasing;the quantity relation between the soil cubic density and the relative stable infiltration rate accords with power function.
出处
《灌溉排水学报》
CSCD
北大核心
2009年第6期104-106,共3页
Journal of Irrigation and Drainage
基金
国家自然科学基金项目(40671081)
山西省自然科学基金项目(20051074)
关键词
土壤结构
水分入渗
稳定入渗率
非饱和有压入渗
soil structure
cumulative infiltration amount
relative stable infiltration rate
non-saturated soil infiltration with surface water pressure
