مقایسه روش‌های نفوذسنج گلف و دیسک مکشی در اندازه‌گیری هدایت هیدرولیکی اشباع خاک

نوع مقاله: مقاله پژوهشی

نویسنده

دانشگاه محقق اردبیلی

چکیده

در این پژوهش، دو روش صحرایی اندازه‌گیری هدایت هیدرولیکی اشباع با نفوذسنج گلف و نفوذسنج مکشی در مزرعه‌ای با خاک لومی-‌شنی در دانشکدۀ کشاورزی مغان مقایسه شدند. آزمایش‌های گلف با دستگاه نفوذ سنج گلف مدل k2800 اجرا شد. به این منظور، 15 چاهک با شعاع 5 سانتی‌متر و عمق 25 سانتی متر درشبکه 2×2 متر حفر و دبی خروجی از دستگاه در بار آبی 5 و10 سانتی‌متر اندازه‌گیری شد. آزمایش در قالب طرح کاملاً تصادفی با چهارتیمار و 15 تکرار دنبال شد. در روش نفوذ­سنج مکشی، آزمایش‌ها در همان شبکه و در مکش‌های 5 ،10 و 15 (سانتی‌متر) اجرا شد. میانگین هدایت هیدرولیکی برای روش نفوذسنج مکشی، گلف با بار آبی 5، گلف با بار آبی 10 (سانتی‌متر)، و آنالیز دو­عمقی گلف به­ترتیب برابر 7، 3، 4، و 6/2 (سانتی‌متر بر ساعت) به­­دست آمد. نتایج آزمون فیشر نشان داده است که روش‌های مختلف در یک گروه قرار گرفته‌اند و تفاوت معنی‌داری در سطح یک درصد با یکدیگر ندارند.میانگین مقادیر به­­دست آمده برای عکس طول درشت مویینگی خاک برابر 0/07(‌بر سانتی‌متر) است و با افزایش میزان هدایت هیدرولیکی اشباع خاک، روند افزایشی آن در خاک دیده شد.

کلیدواژه‌ها


عنوان مقاله [English]

Comparison of Guelph permeameter and Tension Disc Infiltrometer Methods for Measurement Soil Saturated Hydraulic Conductivity

نویسنده [English]

  • yaser hoseini
Moghan College of Agriculture and Natural resources - University of Mohaghegh Ardabili
چکیده [English]

In this study two methods of measuring saturated hydraulic conductivity namely: Guelph permeameter and Tension Disc Infiltrometer were compared in the experimental  field of Moghan Faculty of Agriculture containing Sandy-loam soil texture . Guelph experiments were performed by using Guelph penetrometer model k2800. In this regard, 15 boreholes each with 5 cm diameter and 25 cm depth were drilled in a grid of  2×2 m and discharge was measured  at the hydraulic heads of 5 and 10 cm. .. Experiments were performed based on completely randomized design with 4 treatments and 15 replicates. Also in the Tension Disc Infiltrometer, determination of saturated hydraulic conductivity was performed on   the same grid  with 5, 10, 15 cm suction heads. The average hydraulic conductivity obtained for Tension Disc Infiltrometer, Guelph permeameter in 5,10 cm of hydraulic heads and Guelph two depths analysis was found to be 7, 3, 4, 6.2 cm per hour, respectively. Results of Fisher test  revealed that all methods are classified in a group and not significantly different from each other at the 0.01 level and beyond, . Average values for the inverse of macroscopic capillary length parameter was obtained to be 0.07 cm-1 and as the value of saturated soil hydraulic conductivity increased , an increase in the value of inverse macroscopic capillary length parameter was observed.

کلیدواژه‌ها [English]

  • Depth Analysis Hydraulic head
  • Length One
  • Macroscopic Capillary
  • Matric potential
  • Two Depth Analysis

Azar, A., Babazadeh, H. and Zinalzadeh, K. 2008. Comparison of two methods Guelph and inverse hole to measure the saturated hydraulic conductivity (Case Study: Land College of Agricalture university of Orumieh). 2th Irrigation and Drainage Network Management National Conference. Shahid Chamran University. Ahvaz, Iran. (in Persian)

 

Alizadeh, H. A., Nazari, B. and Liaghat, A. 2009. Evaluation of simplified falling head (SFH) method for measuring saturated hydraulic conductivity. J. Water Soil. 23(2): 55-62. (in Persian)

 

Angulo-Jaramillo, R., Vandervaere, J. P., Roulier, S., Thony, J. L., Gaudet, J. P. and Vauclin, M. 2000. Field measurement of soil surface hydraulic properties by disc and ring infiltrometers. A review and recent developments. Soil Till. Res. 55, 1-29.

 

Ankeny, M. D., Ahmed, M., Kaspar, T. C. and Horton, R. 1991. Simple field method for determining unsaturated hydraulic conductivity.  Soil Sci. Soc. Am. J. 55, 467-470.

 

Asadollahzadeh, T., Mashal, M. and Karimzadgan, S. 2014. investigating the precision of hydraulic conductivity and sorptive number estimation in cased boreholes by reynolds analysis: the cased of Pakdasht region. J. Water Soil. 28(4): 708-716. (in Persian)

 

Boom, J. 1983. Use of sail survey data to select measurement techniques for hydraulic conductivity. Agr. Water manage. 6, 177-190.

 

Elrick. D. E. and Reynolds, W. D. 1986. An analysis of the percolation test based on three dimensional saturated-unsaturated flows from a cylindrical test hole. Soil Sci. 142(5): 308-321.

 

Elrick, D. E. and Reynolds, W. D. 1992. Infiltration from constant head well permeameters and infiltrometers. In: G. C. Topp., W. D. Reynolds and R. E. Green (Eds.) Advances in the Measurement of Soil Physical Properties: Bringing Theory into Practice. Chapter.1. Special Publication No. 30. Soil Science Society of America. Madison, WIS, USA.

 

Elrick, D. E., Reynolds, W. D. and Tan, K. A. 1989. Hydraulic conductivity measurements in the unsaturated zone using improved well analyses. Ground Water Moint. R. 9, 184-193.

 

Gardner, W. R. 1958. Some steady-stade solutions of the unsaturated moisture flow equation with application to evapopration form water table. Soil Sci. 85, 228-232.

 

Ghaffari, P., Kashkouli, H. A. and Mokhtarian, R. 2007. Comparison of measuring hydraulic conductivity using the Guelph and tension infiltrometer. 9th National Seminar on Irrigation and Evapotranspiration. Kerman University. Kerman, Iran. (in Persian)

 

Ghani, F., Tabatabayi, S. H., Shayannejad, M. and Ghorbani-Dashtaki, Sh. 2012. Comparison of four
field measurement methods of saturated hydraulics conductivity. J. Water Resour. Eng. 5(15): 55-66. (in Persian)

 

Ghobadian, R., Shekari, P., Sabe, Gh. A. and Maleki, R. 2014. Depth gradient of saturated hydraulic conductivity by Guelph permeameter method in research farm of Agricultural Faculty, Razi University, Kermanshah. J. Water Soil Conserv. 21(2): 85-107. (in Persian)

 

Ghorbani-Dashtaki, Sh., Dehghani-Baniani, S., Khodaverdiloo, H., Mohammadi, J. and Khalilmoghaddam, B. 2012. Estimation of saturated hydraulic conductivity and inverse of macroscopic capillary length using PTFS. J. Water Soil Sci. (J. Sci. Technol. Agr. Natur. Resour.). 16(60): 145-157. (in Persian)

 

Gupta, R. K., Rudra, R. P., Dickinson, W. T., Patni, N. K. and Wall, G. J. 1993. Comparison of saturated hydraulic conductivity measured by various field methods. Trans. ASAE. 36, 51-55.

 

Hu, W., Wang, Q., Shao, M. and Ju, Zh. 2011. Effects of infiltration time on the calculated sorptivity with white method for a sandy loam soil. Afr. J. Agr. Res. 6(19): 4601-4606.

 

Kashkuli, H. A. and Mokhtaran, A. 2014. Determination of soil saturated hydraulic conductivity above water table using guelph permeameter and its relationship with shallow well pumping method in five agricultural sites in Khuzestan province. J. Water Res. Agr. 28(2): 465-475. (in Persian)

 

Kelishadi, H., Mosaddeghi, M. R., Hajabbasi, M. A. and Ayoubi, S. 2014. Near-saturated soil hydraulic properties as influenced by land use management systems in Koohrang region of central Zagros, Iran. Geoderma. 213, 426-434.

 

Logsdon, S. D. and Jaynes, D. B. 1996. Spatial variability of hydraulic conductivity in a cultivated field at different times. Soil Sci. Soc. Am. J. 60, 703-709.

 

Mashal, M., Shaghghi, V. and Zavaremoghaddam, Z. 2007. Factors affecting the improvement of soil saturated hydraulic conductivity measurements using two depths Guelph permeameter. J. Agr. Eng. Res. 29(3): 12-20. (in Persian)

 

Mohanty, B. P., Kanwar, R. S. and Horton, R. 1991. A robust-resistant approach to interpret the spatial behavior of saturated hydraulic conductivity of a glacial till soil under no-tillage system. Water Resour. Res. 27, 2979-2992.

 

Mohanty, B. P., Kanwer, R. S. and Eversts, C. J. 1994. Comparison of saturated hydraulic conductivity measurement methods, for a glacial-till. Soil Sci. Soc. Am. J. 58, 672-677.

 

Moradi-Basri, H., Ghorbani-Dashtaki, Sh., Givi, J., Khodaverdiloo, H. and Khalilmoghaddam, B. 2012. Comparison of three field methods for measuring saturated hydraulic conductivity in some vertisols and entisols. J. Water Soil. 26(1):173-182. (in Persian)

 

Perroux, K. M. and White, I. 1988. Design for disc permeameters. Soil Sci. Soc. Am. J. 52, 1205-1215.

 

Rauf, M., Nazemi, A. H., Sadraddini, S. A. A. and Maroofi, S. 2010. Estimating saturated and unsaturated hydraulic conductivities of sloping lands under steady and transient states. J. Water Soil. 20(4): 33-46. (in Persian)

 

Rauf, M., Sadraddini, S. A. A., Nazenu, A.H. and Maroofi, S. 2011. Effect of land slope on infiltration and some physical properties of soil. Water Soil Sci. 1, 57-68. (in Persian)

 

Reynolds, W. D. and Elrick D. E. 1985. In situ measurement of field saturated hydraulic conductivity sorpitivity a parameter using Guelph permeameter. Soil Sci. 140(4): 292-302.

 

Reynolds. W. D. and Zebchuk W. D. 1996. Hydraulic conductivity in a clay soil: two measurement techniques and spatial characterization. Soil. Sci. Soc. Am. J. 60, 1679-1685.

 

Reynolds, W. D., Elrick, D. E. and Clothier, B. E. 1985. The constant head well permeameter Effect on unsaturated flow. Soil Sci. 139(2): 172-18.

 

Reynolds, W. D., Vieira, S. R. and Topp, G. C. 1992. An assessment of the single-head analysis for the constant head well permeameter. Can. J. Soil Sci. 72, 489-501.

 

Rezaiepour, S. and Ghobadinia, M. 2012. Investigating infiltration phenomenon process using a disk permeameter check and double ring. The 3rd Conference on Agriculture and Food Science. Islamic Azad University of Fasa. Iran. (in Persian)

 

Smettem, K. and Clothier, B. 1989. Measuring unsaturated sorptivity and hydraulic conductivity using multi-disc permeameters, J. Soil Sci. 40, 565-568.

 

Stroosnijder, L, 1976. Infiltratie en Herverdeling van Water in de Grond. Versl. Land-bouwk. Onderz. No. 847.

 

Torabi, M. 2004. Assessment of five methods of measuring saturated hydraulic conductivity in a saline soil. 2nd Students Conference on Soil and Water Resources. Agricultural Faculty, Shiraz University. Shiraz, Iran. (in Persian)

 

Verbist, K., Cornelis, W., Torfs, S. and Gabriel, D. 2013. Comparing methods to determine hydraulic conductivities on stony soils. SSSAJ. 77(1): 25-42.

 

Wooding, R. 1968. Steady infiltration from a shallow circular pond. Water Resour. Res. 4, 1259-1273.

 

Yamin-Moshrefi, Gh., Marufpour, I., Bahramnezhad, B. and Faryabi, A. 2008. Assessment of infiltration process using a single & double ring. 3th Regional Conference on Research Achievements of Agricultural. Kordestan University. Iran. (in Persian)