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Research Article
 

The Best Method of Guelph Analyses for Measuring Loamy Soils Saturated Hydraulic Conductivity



Aghil Yari , Mojtaba Shaghaghi , Abdullah Darzi and Rostam Pahlavan
 
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ABSTRACT

The suitability of Guelph analyses for arid and semi arid regions of Iran were studied. For this aim, the hydraulic conductivities computed by Guelph analyses were compared to those measured through inverse hole method. Also, the effects of different values of sorptive number (α*) on the results of single depth analysis and different ponding depth on the results of single depth, Vieira and Laplace analyses were investigated. The trials were carried out at Aboureyhan faculty research farm, University of Tehran, Iran, using the randomized completely blocks (as imbalanced with 5 treatments and 21 repeats) at summer season of 2005 when corn cropped. Analyzing of experiments, using SAS software version 6.0, showed the inverse hole hydraulic conductivities were greater than those obtained by Guelph analyses. Based on the results, Vieira analysis was the best method to determine the saturated hydraulic conductivity in loamy soils by Guelph permeameter. To compute hydraulic conductivities of single depth analyses the values of α* = 9 to 12 and ponding depth of 0.15 m had more appropriate results.

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  How to cite this article:

Aghil Yari , Mojtaba Shaghaghi , Abdullah Darzi and Rostam Pahlavan , 2006. The Best Method of Guelph Analyses for Measuring Loamy Soils Saturated Hydraulic Conductivity . Journal of Applied Sciences, 6: 2657-2661.

DOI: 10.3923/jas.2006.2657.2661

URL: https://scialert.net/abstract/?doi=jas.2006.2657.2661

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