Application of ultrasound to disperse soil aggregates of high mechanical stability

作者: Michael Kaiser , Asmeret A. Berhe , Michael Sommer , Markus Kleber

DOI: 10.1002/JPLN.201200077

关键词:

摘要: Questions remain about the exact ultrasonic energy level that is required to effectively disperse soil aggregates and what extent this accompanied by physical damage individual particles. We found maximum aggregate dispersion at levels of 1500 J cm–3 no evidence for disintegration particles < 20 μm even level. Our findings suggest sonication energies much greater than those applied conventionally can high mechanical stability.

参考文章(27)
Li Ping Weng, Luuk K. Koopal, Tjisse Hiemstra, Johannes C.L. Meeussen, Willem H. Van Riemsdijk, Interactions of calcium and fulvic acid at the goethite-water interface Geochimica et Cosmochimica Acta. ,vol. 69, pp. 325- 339 ,(2005) , 10.1016/J.GCA.2004.07.002
Véronique Séguin, Christian Gagnon, François Courchesne, Changes in water extractable metals, pH and organic carbon concentrations at the soil-root interface of forested soils Plant and Soil. ,vol. 260, pp. 1- 17 ,(2004) , 10.1023/B:PLSO.0000030170.49493.5F
E. Meers, G. Du Laing, V. G. Unamuno, E. Lesage, F. M. G. Tack, M. G. Verloo, Water Extractability of Trace Metals from Soils: Some Pitfalls Water Air and Soil Pollution. ,vol. 176, pp. 21- 35 ,(2006) , 10.1007/S11270-005-9070-1
Jørgen Eriksen, RDB Lefroy, GJ Blair, Physical protection of soil organic S studied using acetylacetone extraction at various intensities of ultrasonic dispersion Soil Biology & Biochemistry. ,vol. 27, pp. 1005- 1010 ,(1995) , 10.1016/0038-0717(95)00031-9
X M Yang, C F Drury, W D Reynolds, D C MacTavish, Use of sonication to determine the size distributions of soil particles and organic matter Canadian Journal of Soil Science. ,vol. 89, pp. 413- 419 ,(2009) , 10.4141/CJSS08063
Markus Kleber, Sabine Zikeli, Michael Kastler, Reinhold Jahn, An Andosol from Eastern Saxony, Germany Journal of Plant Nutrition and Soil Science. ,vol. 166, pp. 533- 542 ,(2003) , 10.1002/JPLN.200321102
M. W. I. Schmidt, C. Rumpel, I. Kögel‐Knabner, Evaluation of an ultrasonic dispersion procedure to isolate primary organomineral complexes from soils European Journal of Soil Science. ,vol. 50, pp. 87- 94 ,(1999) , 10.1046/J.1365-2389.1999.00211.X
Julie D. Jastrow, James E. Amonette, Vanessa L. Bailey, Mechanisms controlling soil carbon turnover and their potential application for enhancing carbon sequestration Climatic Change. ,vol. 80, pp. 5- 23 ,(2007) , 10.1007/S10584-006-9178-3