scholarly journals CALIBRATING AND EVALUATING FILTER PAPER METHOD FOR DETERMINING SOIL MOISTURE CHARACTERISTIC CURVE

2007 ◽  
Vol 32 (9) ◽  
pp. 8017-8026
Author(s):  
W.M. Omran ◽  
B.M. El-Garhy
Keyword(s):  
Soil Moisture ◽  
Filter Paper ◽  
Characteristic Curve ◽  
Filter Paper Method ◽  
Moisture Characteristic ◽  
Paper Method

scholarly journals Determination of water retention characteristics of organic soils, using the indirect filter-paper method

2018 ◽  
Vol 2 ◽  
pp. 13-21
Author(s):  
Ryszard Oleszczuk ◽  
◽  
Ewelina Zając ◽  
Edyta Hewelke ◽  
Karolina Wawer ◽  
...  
Keyword(s):  
Filter Paper ◽  
Water Retention ◽  
Organic Soils ◽  
Filter Paper Method ◽  
Retention Characteristics ◽  
Paper Method

The Effect of Contact on the Filter Paper Method for Measuring Soil Suction

2012 ◽  
Vol 35 (1) ◽  
pp. 103571 ◽  
Author(s):  
L. D. Suits ◽  
T. C. Sheahan ◽  
Fernando A. M. Marinho ◽  
Jorge E. da Silva Gomes
Keyword(s):  
Filter Paper ◽  
Soil Suction ◽  
Filter Paper Method ◽  
Paper Method

A Revised Contact Filter Paper Method

2008 ◽  
Vol 31 (6) ◽  
pp. 101099 ◽  
Author(s):  
L. D. Suits ◽  
T. C. Sheahan ◽  
Kenton C. Power ◽  
Sai K. Vanapalli ◽  
Vinod K. Garga
Keyword(s):  
Filter Paper ◽  
Filter Paper Method ◽  
Paper Method

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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