Soil texture analysis by laser diffraction - standardization needed

Publikation: Bidrag til bog/antologi/rapport/proceedingKonferenceabstrakt i proceedingsForskning

  • Ingeborg Callesen, IGN, KU, Danmark
  • M. Palviainen, Department of Forest Sciences, University of Helsinki, Finland
  • O. Janne Kjønaas, NIBIO, Norge
  • K. Armolaitis, Lithuanian Research Centre for Agriculture and Forestry, Institute of Agriculture, Litauen
  • Charlotte Rasmussen
Soil texture is a central soil quality property. Laser diffraction (LD) for determination of particle size distribution (PSD) is now widespread due to easy analysis and low cost. However, pretreatment methods and interpretation of the resulting soil PSD’s are not standardized. Comparison of LD data with sedimentation and sieving data may cause misinterpretation and confusion. In literature that reports PSD’s based on LD, pretreatment methods, operating procedures and data methods are often underreported or not reported, although literature stressing the importance exists (e.g. Konert and Vandenberghe, 1997 and many newer; ISO 13320:2009). PSD uncertainty caused by pretreatments and PSD bias caused by plate-shaped clay particles still calls for more method standardization work. If LD is used more generally, new pedotransfer functions for other soil properties (e.g water retention) based on sieving and sedimentation methods need to be developed.
OriginalsprogEngelsk
TitelBook of Abstracts Wageningen Soil Conference 2017 : ‘Soil Science in a Changing World’
ForlagWargeningen University
Udgivelsesår2017
Sider192
ISBN (trykt)978-94-6343-061-6
StatusUdgivet - 2017
BegivenhedWageningen soil conference 2017 - Wageningen University and Research, Wageningen, Holland
Varighed: 27 aug. 201731 aug. 2017
Konferencens nummer: 3

Konference

KonferenceWageningen soil conference 2017
Nummer3
LokationWageningen University and Research
LandHolland
ByWageningen
Periode27/08/201731/08/2017

    Forskningsområder

  • Soil, Texture, Particle size distribution, Clay, Laserdiffraction

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