Tensiometer techniques for determining soil water retention curves
Tensiometer techniques for determining soil water retention curves
复制标题
用于确定土壤保水曲线的张力计技术
DOI：
10.1201/b19248-4
复制
发表时间：
2015
期刊：
影响因子：
5
通讯作者：
R. Stirling
中科院分区：
文献类型：
--
作者：
D. Toll;Jd Asquith;A. Fraser;A. Hassan;G. Liu;S. Lourenco;J. Mendes;T. Noguchi;P. Osiński;R. Stirling
土壤的持水特性是理解土壤材料非饱和特性的一个重要方面。本文介绍了一种较新的测定土壤水分特征曲线的方法，即使用高容量张力仪。本文介绍了一种用于连续测量含水量、吸力和体积变化的新设备。结果与传统的压力板测量，以及滤纸和冷冻镜湿度计测试进行了比较。有人认为，张力计测量和压力板数据给出不同的结果。这里提供的更大的数据集证实了这一点。据发现，技术之间的差异可以解释不同的体积响应。
The water retention behaviour of soils is an essential aspect of understanding the unsaturated behaviour of soil materials. This paper looks at a relatively new method of measurement for soil water retention curves, using high capacity tensiometers. New equipment for carrying out continuous measurements of water content, suction and volume change is described. The results are compared with traditional pressure plate measurements, as well as filter paper and chilled mirror hygrometer tests. It has been suggested that tensiometer measurements and pressure plate data give different results. This is confirmed by the larger data set provided here. It is found that the differences between the techniques can be explained by different volumetric responses.