scholarly journals Physics of the soil medium organization part 2: pedostructure characterization through measurement and modeling of the soil moisture characteristic curves

2014 ◽  
Vol 2 ◽  
Author(s):  
Amjad T. Assi ◽  
Joshua Accola ◽  
Gaghik Hovhannissian ◽  
Rabi H. Mohtar ◽  
Erik Braudeau
Keyword(s):  
Soil Moisture ◽  
Characteristic Curves ◽  
Soil Medium ◽  
Moisture Characteristic

A new technique for rapid measurement of continuous soil moisture characteristic curves

Géotechnique ◽  
2004 ◽  
Vol 54 (3) ◽  
pp. 179-186 ◽  
Author(s):  
N. K. Toker ◽  
J. T. Germaine ◽  
K. J. Sjoblom ◽  
P. J. Culligan
Keyword(s):  
Soil Moisture ◽  
New Technique ◽  
Characteristic Curves ◽  
Rapid Measurement ◽  
Moisture Characteristic ◽  
A New Technique

Use of the evaporative method for determination of soilless substrate moisture characteristic curves

2016 ◽  
Vol 211 ◽  
pp. 102-109 ◽  
Author(s):  
Jeb S. Fields ◽  
James S. Owen ◽  
Lin Zhang ◽  
William C. Fonteno
Keyword(s):  
Characteristic Curves ◽  
Moisture Characteristic ◽  
Substrate Moisture ◽  
Soilless Substrate

COMPARISON OF METHODS FOR DETERMINING SATURATED HYDRAULIC CONDUCTIVITY AND DRAINABLE POROSITY OF TWO SOUTHERN ALBERTA SOILS

1986 ◽  
Vol 66 (2) ◽  
pp. 249-259 ◽  
Author(s):  
G. D. BUCKLAND ◽  
D. B. HARKER ◽  
T. G. SOMMERFELDT
Keyword(s):  
Soil Moisture ◽  
Hydraulic Conductivity ◽  
Characteristic Curve ◽  
Subsurface Drainage ◽  
Saturated Hydraulic Conductivity ◽  
Drainage Design ◽  
Moisture Characteristic ◽  
Constant Head ◽  
Subsurface Drains ◽  
Drainable Porosity

Saturated hydraulic conductivity (Ks) and drainable porosity (f) determined by different methods and for different depths were compared with those determined from the performance of drainage systems installed at two locations. These comparisons were made to determine which methods are suitable for use in subsurface drainage design. Auger hole and constant-head well permeameter Ks were 140 and 110%, respectively, of Ks determined from subsurface drains. Agreement of horizontal or vertical Ks, from in situ falling-head permeameters; to other methods was satisfactory providing sample numbers were large. Ks by Tempe cells was only 3–10% of drain Ks and in one instance was significantly lower than Ks determined by all other methods. At one site a profile-averaged value of f determined from the soil moisture characteristic curve (0–5 kPa) of semidisturbed cores agreed with that determined from drainage trials. At the other site, a satisfactory value of f was found only when the zone in which the water table fluctuated was considered. Results indicate that Ks determined by the auger hole and constant-head well permeameter methods, and f determined from the soil moisture characteristic curve of semidisturbed cores, are sufficiently reliable and practical for subsurface drainage design. Key words: Subsurface drainage, hydraulic conductivity, drainable porosity

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