Damage to soil physical properties caused by soil sampler devices as assessed by gamma ray computed tomography
Luiz F. Pires A B , Osny O. S. Bacchi A and Klaus Reichardt AA Center for Nuclear Energy in Agriculture, USP. C.P. 96, C.E.P. 13.400-970 Piracicaba, SP, Brazil.
B Corresponding author; email: lfpires@cena.usp.br
Australian Journal of Soil Research 42(7) 857-863 https://doi.org/10.1071/SR03167
Submitted: 5 December 2003 Accepted: 31 May 2004 Published: 12 November 2004
Abstract
Soil sample physical properties can be greatly affected during soil sampling procedures. Improper procedures can impose modifications on soil sample structure and consequently lead to wrong measurements of soil properties. The objective of this work was to evaluate the damage caused by soil samplers to soil structure through the analysis of computed tomography (CT) images. A first generation tomograph was used, having a 241Am source and a 7.62 × 7.62 cm NaI(Tl) scintillation crystal detector coupled to a photomultiplier tube. Results confirm the effect of soil sampler devices on the structure of soil samples, and that the compaction caused during sampling causes significant alterations to soil bulk density. Through the use of CT it was possible to determine the level of compaction and to make a detailed analysis of the soil bulk density distribution within the soil sample.
Additional keywords: soil sampler device, soil compaction, computed tomography, gamma radiation.
Acknowledgments
The authors wish to thank R.C.J. Arthur and R.P. Camponez do Brasil for the help during soil sampling procedure and to FAPESP (grant no. 02/05066–5) for the financial support.
Balogun FA, Cruvinel PE
(2003) Compton scattering tomography in soil compaction study. Nuclear Instruments and Methods in Physics Research—Section A 505, 502–507.
| Crossref | GoogleScholarGoogle Scholar |
Baveye P,
Rogasik H,
Wendroth O,
Onasch I, Crawford JW
(2002) Effect of sampling volume on the measurement of soil physical properties: simulation with X-ray tomography data. Measurement Science and Technology 13, 775–784.
| Crossref | GoogleScholarGoogle Scholar |
Borgia GC,
Bortolotti V, Fantazzini P
(2001) Changes of the local pore scale structure quantified in heterogeneous porous media by 1H magnetic resonance relaxation tomography. Journal of Applied Physics 90, 1155–1163.
| Crossref | GoogleScholarGoogle Scholar |
Camponez do Brasil RP
(2000) Influência das técnicas de coleta de amostras na determinação das propriedades físicas do solo. MSc thesis, ESALQ/USP-Brazil.
Crestana S,
Cesareo R, Mascarenhas S
(1986) Using a computed tomography miniscanner in soil science. Soil Science 142, 56–61.
Crestana S,
Mascarenhas S, Pozzi-Mucelli RS
(1985) Static and dynamic 3-dimensional studies of water in soil using computed tomographic scanning. Soil Science 140, 326–332.
Ferraz ESB, Mansell RS
(1979) Determining water content and bulk density of soil by gamma ray attenuation methods. Technical Bulletin, No. 807, IFAS, USA.
Hainsworth JM, Aylmore LAG
(1983) The use of computer-assisted tomography to determine spatial distribution of soil water content. Australian Journal of Soil Research 21, 435–443.
Herman, GT (1980).
Hounsfield GN
(1973) Computerized transverse axial scanning (tomography). 1. Description of system. British Journal of Radiology 46, 1016–1022.
| PubMed |
Jenneson PM,
Gilboy WB,
Morton EJ, Gregory PJ
(2003) An X-ray micro-tomography system optimized for the low-dose study of living organisms. Applied Radiation and Isotopes 58, 177–181.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
MICROVIS (2000).
Paulus MJ,
Sari-Sarraf H,
Gleason SS,
Bobrek M,
Hicks JS,
Johnson DK,
Behel JK,
Thompson LH, Allen WC
(1999) A new X-ray computed tomography system for laboratory mouse imaging. IEEE Transactions on Nuclear Science 46, 558–564.
| Crossref | GoogleScholarGoogle Scholar |
Pedrotti A,
Pauletto EA,
Crestana S,
Cruvinel PE,
Vaz CMP,
Naime JM, da Silva AM
(2003) Planossol soil sample size for computerized tomography measurement of physical parameters. Scientia Agricícola 60, 735–740.
Perret J,
Prasher SO,
Kantzas A, Langford C
(1999) Three-Dimensional quantification of macropore networks in undisturbed soil cores. Soil Science Society of America Journal 63, 1530–1543.
Petrovic AM,
Siebert JE, Rieke PE
(1982) Soil bulk density analysis in three dimensions by computed tomographic scanning. Soil Science Society of America Journal 46, 445–450.
Pires LF,
Arthur RC,
Camponez do Brasil RP,
Correchel V,
Bacchi OOS, Reichardt K
(2004) The use of gamma ray computed tomography to investigate soil compaction due to core sampling devices. Brazilian Journal of Physics 34, 728–731.
Pires LF,
Macedo JR,
Souza MD,
Bacchi OOS, Reichardt K
(2002) Gamma-ray computed tomography to characterize soil surface sealing. Applied Radiation and Isotopes 57, 375–380.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Pires LF,
Macedo JR,
Souza MD,
Bacchi OOS, Reichardt K
(2003) Gamma-ray computed tomography to investigate compaction on sewage-sludge-treated soil. Applied Radiation and Isotopes 59, 17–25.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Rogasik H,
Crawford JW,
Wendroth O,
Young IM,
Joschko M, Ritz K
(1999) Discrimination of soil phases by dual energy X-ray tomography. Soil Science Society of America Journal 63, 741–751.
Stampanoni M,
Borchert G,
Abela R, Ruegsegger P
(2003) Nanotomography based on double asymmetrical Bragg diffraction. Applied Physics Letters 82, 2922–2924.
| Crossref | GoogleScholarGoogle Scholar |
Treimer W,
Strobl M,
Hilger A,
Seifert C, Feye-Treimer U
(2003) Refraction as imaging signal for computerized (neutron) tomography. Applied Physics Letters 83, 398–400.
| Crossref | GoogleScholarGoogle Scholar |
VandenBygaart AJ, Protz R
(1999) The representative elementary area (REA) in studies of quantitative soil micromorphology. Geoderma 89, 333–346.
| Crossref | GoogleScholarGoogle Scholar |
Vaz CMP,
Crestana S,
Mascarenhas S,
Cruvinel PE,
Reichardt K, Stolf R
(1989) Computed tomography miniscanner for studying tillage induced soil compaction. Soil Technology 2, 313–321.
| Crossref | GoogleScholarGoogle Scholar |
Wildenschild D,
Hopmans JW,
Vaz CMP,
Rivers ML,
Rikard D, Christensen BSB
(2002) Using X-ray computed tomography in hydrology: systems, resolutions, and limitations. Journal of Hydrology 267, 285–297.
| Crossref | GoogleScholarGoogle Scholar |
