Field measurement of air-entry and water-entry soil water pressure heads

被引：19
|
作者：
Fallow, DJ [1 ]
Elrick, DE [1 ]
机构：
[1] UNIV GUELPH,DEPT LAND RESOURCE SCI,GUELPH,ON N1G 2W1,CANADA
来源：
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1996年 / 60卷 / 04期
关键词：
D O I：
10.2136/sssaj1996.03615995006000040011x
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
An effective field measurement of the air-entry and water-entry soil water pressure heads gives an improved description of the hydraulic properties of soils. One study obtained measurements of air-entry soil water pressure heads using a modified falling head infiltrometer. This study then estimated the value of the water-entry soils water pressure head from this value. Now direct field measurements of both the air-entry and water-entry soils water pressure heads can be easily obtained using an external tension bottle attached to the Guelph Pressure Infiltrometer at the conclusion of quasi-steady state infiltration readings.
引用
收藏
页码：1036 / 1039
页数：4
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