摘要
本文对降雨入渗过程进行了分析,详细介绍了格林—安普特入渗理论和米恩、拉森的修正理论,并对该理论模型中有关参数进行了综合分析和讨论。根据不同雨强的人工降雨实验,用实测和计算参数进行了入渗计算,并对地表积水时间、入渗量和入渗率的变化规律,以及影响它们的因子进行了研究和讨论。
This paper discusses the rainfall infiltration process, reviews and gives the Green-Ampt infiltration theory and Mein-Larson modifying tbeory in detail. The author developes and discusses the calculation method of the parameters in the infiltration model, especially about the average suction at the wetting front(S_(av)). Parameters in the model has been developed from the simutated rainfall in site. Calculation made with this model shows that the rules of pounding time (t_p, cumulative infiltration (Ⅰ) and infiltration rate (i). An example is included for illustration. Comparisons between the calculated results with model and tested results are highly satisfactory. The author points out the main factors which affect the infiltration process.
出处
《水土保持学报》
CSCD
北大核心
1989年第4期15-22,共8页
Journal of Soil and Water Conservation
