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RESEARCH ARTICLE
Contents Vol 45(4)

Relationship between dielectric permittivity and water content for vadose zone materials of volcanic origin

R. Stenger A C , T. Wöhling A , G. F. Barkle B and A. Wall A
+ Author Affiliations
- Author Affiliations

A Lincoln Environmental Research, Lincoln Ventures Ltd, Private Bag 3062, Hamilton, New Zealand.

B Aqualinc Research Ltd, PO Box 14-041, Enderley, Hamilton 3252, New Zealand.

C Corresponding author. Email: stenger@lvlham.lincoln.ac.nz

Australian Journal of Soil Research 45(4) 299-309 https://doi.org/10.1071/SR06172
Submitted: 8 December 2006  Accepted: 27 April 2007   Published: 28 June 2007

Abstract

Seven materials, encompassing a young volcanic soil, its parent material, two older buried soils (Palaeosols), and an underlying older volcanic deposit were investigated in a laboratory study to determine the relationship between dielectric permittivity (ϵc) and water content (θ). Empirical 3rd-order polynomial models generally fitted the data better than semi-physical 3-phase mixing models and normalised conversion functions. Based on their different dielectric response, which presumably is mainly due to their different bulk density (and thus porosity), the materials could be grouped into Ignimbrite materials and Palaeosol materials. Relative to the Ignimbrites, Palaeosols showed a particularly muted response at the low end of dielectric permittivity measurements, which could be due to a particularly high amount of bound water in these allophane-rich materials and/or to greater microstructural and phase configuration effects. Applying the Topp equation resulted in substantial underestimations of the water contents of both groups. A relationship previously developed on New Zealand sandy volcanic soils fitted our Ignimbrite materials well, but still underestimated the water contents of the Palaeosols substantially. Normalised conversion functions described both material groupings reasonably well, demonstrating that bulk density differences can explain a substantial part of the variation of ϵc–θ relationships between different materials.

Additional keywords: soil moisture, time domain reflectometry, pumice, allophane.


Acknowledgments

We would like to thank the Foundation for Research, Science and Technology (FRST) for funding this work as part of LVL’s Groundwater Quality Protection Programme (8137-ASXS-LVL). Thanks also to Karin Müller (AgResearch) for the loan of equipment. Useful comments by 3 anonymous reviewers are gratefully acknowledged. This work forms part of the IRAP partnership and the Taupo Collaborative Study Group.


References


Alharthi A, Lange J (1987) Soil water saturation: dielectric determination. Water Resources Research 23, 591–595. open url image1

Blakemore LC, Searle PL, Daly BK (1987) Methods for chemical analysis of soils.  Lower Hutt , open url image1

Blonquist JM, Jones SB, Leron I, Robinson DA (2006) Microstructural and phase configurational effects determining water content: dielectric relationships of aggregated porous media. Water Resources Research 42, W05424.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Dasberg S, Hopmans JW (1992) Time domain reflectometry calibration for uniformly and nonuniformly wetted sandy and clayey loam soils. Soil Science Society of America Journal 56, 1341–1345. open url image1

Dirksen C, Dasberg S (1993) Improved calibration of time domain reflectometry soil water content measurements. Soil Science Society of America Journal 57, 660–667. open url image1

Dobson MC, Ulaby FT, Hallikainen MT, El-Rayes MA (1985) Microwave dielectric behavior of wet soil - Part II: Dielectric mixing models. IEEE Transactions on Geoscience and Remote Sensing GE-23, 35–46.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Evett SR, Parkin GW (2005) Advances in soil water content sensing: The continuing maturation of technology and theory. Vadose Zone Journal 4, 986–991.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Friedman SP (1998) A saturation degree-dependent composite spheres model for describing the effective dielectric constant of unsaturated porous media. Water Resources Research 34, 2949–2961.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Herkelrath WN, Hamburg SP, Murphy F (1991) Automatic, real-time monitoring of soil moisture in a remote field area with time domain reflectometry. Water Resources Research 27, 857–864.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Hewitt AE (1998) ‘New Zealand Soil Classification.’ Landcare Research Science, Series 1. (Manaaki Whenua – Landcare Research New Zealand Ltd: Dunedin)

Hook WR, Livingston NJ (1995) Errors in converting time domain reflectometry measurements of propagation velocity to estimates of soil water content. Soil Science Society of America Journal 59, 35–41. open url image1

Jones SB, Wraith JM, Or D (2002) Time domain reflectometry measurement principles and applications. Hydrological Processes 16, 141–153.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Kim KC , Benson CH (2002) Water content reflectometer calibrations for final cover soils. University of Wisconsin-Madison, Geo Engineering Report No. 02-12, Wisconsin, USA.

Klute A (1986) Hydraulic conductivity and diffusivity: laboratory methods. In ‘Methods of soil analysis’. (Ed. A Klute) pp. 687–732. (Soil Science Society of America: Madison, WI)

Malicki MA, Plagge R, Roth CH (1996) Improving the calibration of dielectric TDR soil moisture determination taking into account the solid soil. European Journal of Soil Science 47, 357–366.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Miyamoto T, Kobayashi R, Annaka T, Chikushi J (2001) Applicability of multiple length TDR probes to measure water distributions in an Andisol under different tillage systems in Japan. Soil and Tillage Research 60, 91–99.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Miyamoto T, Annaka T, Chikushi J (2003) Soil aggregate structure effects on dielectric permittivity of an andisol measured by time domain reflectometry. Vadose Zone Journal 2, 90–97. open url image1

Miyamoto T, Annaka T, Chikushi J (2005) Extended dual composite sphere model for determining dielectric permittivity of andisols. Soil Science Society of America Journal 69, 23–29. open url image1

Molloy L (1993) ‘Soils in the New Zealand landscape the living mantle.’ (New Zealand Society of Soil Science: Canterbury, New Zealand)

Olhoeft GR (1989) Electrical properties of rocks. In ‘Physical properties of rocks and minerals Vol. II-2’. (Eds YS Touloukian, WR Judd, RF Roy) pp. 298–305. (Hemisphere Publishing: New York)

Parfitt RL (1990) Allophane in New Zealand—a review. Australian Journal of Soil Research 28, 343–360.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Parfitt RL, Childs CW (1988) Estimation of forms of Fe and Al: a review and analysis of contrasting soils by dissolution and moessbauer methods. Australian Journal of Soil Research 26, 121–144.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Regalado CM (2006) A geometrical model of bound water permittivity based on weighted averages: the allophane analogue. Journal of Hydrology 316, 98–107.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Regalado CM, Muñoz Carpena R, Socorro AR, Hernández Moreno JM (2003) Time domain reflectometry models as a tool to understand the dielectric response of volcanic soils. Geoderma 117, 313–330.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Rijkse WC (2005) Report on Oruanui loamy sand profile, Waihora Station. Prepared for Lincoln Ventures Ltd.

Rijkse WC , Hewitt AE (1995) Soil map of the North Island, New Zealand Soil Classification 1 : 1000000 scale. Manaaki Whenua, Landcare Research, Lincoln, New Zealand.

Roth CH, Malicki MA, Plagge R (1992) Empirical evaluation of the relationship between soil dielectric constant and volumetric water content as the basis for calibrating soil moisture measurements. Journal of Soil Science 43, 1–13.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Roth K, Schulin R, Flühler H, Attinger W (1990) Calibration of time domain reflectometry for water content measurement using a composite dielectric approach. Water Resources Research 26, 2267–2273.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Rousseaux JM, Warkentin BP (1976) Surface properties and forces holding water in allophane soils. Soil Science Society of America Journal 40, 446–451. open url image1

Stenger R , Barkle G , Andler O , Wall A , Clough T (2006) Characterisation of the Vadose Zone in a Lake Taupo Subcatchment. In ‘Implementing sustainable nutrient management strategies in agriculture’. Occasional Report No.19. (Eds LD Curry, JA Hanly) pp. 197–207. (Fertilizer and Lime Research Centre, Massey University: Palmerston North, New Zealand)

Stenger R, Barkle G, Burgess C (2005) Laboratory calibrations of water content reflectometers and their in situ verification. Australian Journal of Soil Research 43, 607–615.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Tabbagh A, Camerlynck C, Cosenza P (2000) Numerical modelling for investigating the physical meaning of the relationship between relative dielectric permittivity and water content of soils. Water Resources Research 36, 2771–2776.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Tomer MD, Clothier BE, Vogeler Iris, Green S (1999) A dielectric-water content relationship for sandy volcanic soils in New Zealand. Soil Science Society of America Journal 63, 777–781. open url image1

Topp GC, Davis JL, Annan AP (1980) Electromagnetic determination of soil water content: measurements in coaxial transmission lines. Water Resources Research 16, 574–582. open url image1

Wang JR, Schmugge TJ (1980) An empirical model for the complex dielectric permittivity of soils as a function of water content. IEEE Transactions on Geoscience and Remote Sensing GE-18, 288–295.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Weitz AM, Grauel WT, Keller M, Veldkamp E (1997) Calibration of time domain reflectomertry technique using undisturbed soil samples from humid tropical soils of volcanic origin. Water Resources Research 33, 1241–1249.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Western AW , Duncan MJ , Olszak C , Thompson J , Anderson T , Grayson RB , Wilson D , Young R (2001) Calibration of CS615 and TDR instruments for Mahurangi, Tarrawarra and Point Nepean soils. In ‘Second International Symposium and Workshop on Time Domain Reflectometry for Innovative Geotechnical Applications’.

Wilson C (2004) Report on drillhole cores. GNS Contract Report 24/03/2004, Prepared for Lincoln Ventures Ltd.

Yu C, Warrick W, Conklin MH (1999) Derived functions of time domain reflectometry for soil moisture management. Water Resources Research 35, 1789–1796.
| Crossref | GoogleScholarGoogle Scholar | open url image1