摘要
通过室内试验模拟了潜水的蒸发过程,研究了空气湿度对潜水蒸发速率的影响及潜水蒸发过程中毛细水的上升规律。通过数据对比分析可知,土柱上方空气相对湿度低时,潜水蒸发速率增大,蒸发的潜水一部分用于土柱内土壤水分的上升,另一部分被蒸发出土壤剖面。由土壤含水率随剖面深度的变化可知,土壤含水率随着距离地下水位的增大而减小,并且随着试验时间的延长,同一深度的含水率是增大的,含水率增大的过程可看作未充水的较小孔隙陆续充水的过程,直至最小孔隙充满水为止。
In this paper,through the experiment of phreatic water evaporation,the influence of air humidity to the phreatic water evaporation rate and the rising law of capillary water were studied. Through analysis of experimental data,it concluded that phreatic water evaporation rate increased when the air humidity decreased. During the experiment,part of the consumption of phreatic water was used to make the soil water moving upward and another part was used to the evaporation loss. In profiles,moisture content decreased with an increase in distance from groundwater table and at the same depth increased with extension of experiment time. The increasing of moisture content was a process of smaller pore filled with water gradually,until the smallest pore was full of water.
出处
《人民黄河》
CAS
北大核心
2015年第3期62-64,71,共4页
Yellow River
基金
国家自然科学基金资助项目(41271329)
南京工程学院引进人才科研启动基金资助项目(YKJ201327)
关键词
潜水蒸发
含水率
土壤水
空气湿度
phreatic water evaporation
moisture content
soil water
air humidity
