摘要
基于Gardner表征的土壤水分特征曲线和Russo表征的非饱和土壤导水率形式,推导了负水头下水分入渗累计入渗量、入渗率、湿润峰以及入渗时间之间的理论关系,分析了负水头下水分入渗土壤含水量剖面分布以及剖面含水量的预测。并利用实验的数据验证了这些变量的关系,验证结果表明这些关系是合理的。
Based on the soil water retention function of Gardner and the hydraulic conductivity thnction of Russo, theoretical relationships were developed to describe cumulative infiltration, infiltration rate, and wetting front under one dimensional water flow under a boundary condition of negative hydraulic heads. Lab experiments were conducted to measure infiltration data under various conditions. The theoretical relationships were shown to be reasonable based on the experiment data.
出处
《土壤通报》
CAS
CSCD
北大核心
2006年第5期841-846,共6页
Chinese Journal of Soil Science
基金
国家自然科学基金资助项目(50479064
50279038)
北京市科技新星计划资助项目(H020821340130)
关键词
负水头
非饱和土壤导水率
湿润峰
Negative hydraulic head
Hydraulic conductivity function
Wetting front
