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Chinese Journal of Applied Ecology ›› 2004, Vol. ›› Issue (3): 477-481.

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Soil particle size fractionation with centrifugation method

WU Tianyun1,2, Jeff J. Schoenau3, LI Fengmin1, QIAN Peiyuan3, WANG Fang2, Sukhadev S. Malhi 4   

  1. 1. State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000, China;
    2. Soil Science and Fertilizer Institute, Gansu Agricultural Academy, Lanzhou 730070, China;
    3. Department of Soil Science, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan, Canada, SK, S7N 5A8;
    4. Nutrient Cycling Research Station, Agriculture and Agri-Food Canada, Melfort, Saskatchewan, Canada, SK, S0E 1A0
  • Received:2002-10-17 Revised:2003-07-08 Online:2004-03-15

Abstract: According to the rotor size of Mandal RC5C and Stoks' law,a segregation procedure for soil particle size fractionation was designed,and used for the particle separation of Huangmian soil(Calcaric cambisols,FAO),Huihe soil(Haplic greyxems,FAO),and Helu soil(Calcic kastanozems,FAO) in the Loess Plateau of China,and of Orthic Brown Chernozem,and Orthic Black Chernozem in Canadian Prairie.The fractionation results of the 5 soils by using this procedure were in line with those of the standard pipette method.

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