降雨入渗作用下土壤含水量时空变化研究  

Simulation and Experiment Study on Soils Moisture Content Influence by Rainfall Infiltration

作　　者：高岩[1,2] 郭海豹[2] 刘然[3] 蔺新星[2] 

机构地区：[1]北京建筑大学环境与能源工程学院供热供燃气通风及空调工程北京市重点实验室,北京100044 [2]北京建筑大学环境与能源工程学院北京市建筑节能减排关键技术协同创新中心,北京100044 [3]北京建筑大学环境与能源工程学院绿色建筑与节能技术北京市重点实验室,北京100044

出　　处：《北京建筑大学学报》2016年第3期107-111,共5页Journal of Beijing University of Civil Engineering and Architecture

基　　金：教育部科学技术研究项目(213001A)

摘　　要：降雨通过土壤汇集雨水并储藏、滤渗可以补充地下水,减少径流污染,还可以减少洪涝隐患.通过实验和模拟计算的手段研究不同汇水入渗条件下的土壤含水量变化.在饱和—非饱和入渗理论基础上,建立土壤入渗方向上的一维非稳态降雨入渗模型并通过既有的恒流入渗土柱实验对所编写的计算程序进行验证.结果表明,理论模型较好地反映了降雨入渗的动态过程.Rainfall could be collected and reduce runoff pollution and flood hazard stored by soil. Infiltration could replenish the groundwater and In this paper, soil moisture content variation is studied by theoretical and experimental methods. Based on saturated-unsaturated infiltration theory, a onedimensional transient model along depth direction was established. Furthermore, the model was validated by the existing constant infiltration experiment. Results show that the model reflects the process of rainfall infiltration in soils.

关 键 词：雨水入渗 土壤含水量 土壤 

分 类 号：S152.7[农业科学—土壤学]