容重对红壤土水平一维入渗水分运移特性的影响
Study on the Effect of Bulk Density on One-dimensional Horizontal Infiltration and Water Transport Properties in Red Soil
贺卫华 1梁欣欣 2陆飞2
作者信息
- 1. 湖南省湘潭市水利水电勘测设计院,湖南湘潭 411400
- 2. 南昌工程学院,江西南昌 330099
- 折叠
摘要
[目的]研究水平一维入渗条件下,容重对红壤土水分入渗的影响.[方法]以不同容重的红壤土为研究对象,进行了室内水平入渗试验.[结果]相同时间内容重越大,水分运移的速度越慢,湿润锋运移距离越小,累积入渗量越小;在湿润锋之上,相同容重的土壤含水量差别不大,在相同的入渗距离,土壤容重越大,含水量越小.[结论]建立了红壤土一维水平入渗条件下容重与湿润锋关系模型,改进了一维水平入渗条件下的Philip模型.
Abstract
[Objective] The aim was to study the effects of soil bulk density on moisture infiltration under the condition of one-dimensional horizontal infiltration.[Method] With different bulk density red soil as the research object,indoor horizontal infiltration experiment was conducted.[Result] The experimental results showed that during the same time,the higher the density,the slower the moisture migration speed,the smaller wetting front transport distance and the cumulative infiltration amount;On the wetting front,the soil' s moisture of same density aren't very different,but in the same infiltration distance,the greater the soil bulk density,the smaller the moisture content.[Conclusion] The relationship model between balk density and wetting front under the condition of red soil one-dimensional horizontal infiltration is established,the Philip model under one-dimensional horizontal infiltration condition is improved.
关键词
红壤/水平入渗/容重Key words
Red soil/Horizontal infiltration/Bulk density引用本文复制引用
基金项目
江西省科技成果重点转移转化项目(20142BBI0020)
国家自然科学基金(51269020)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据