Encyclopedia of Soil Science

2008 Edition
| Editors: Ward Chesworth

Bulk Density

  • Bryon W. Bache
  • Ward Chesworth
  • Ward Chesworth
  • Carlo Gessa
  • David T. Lewis
Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-3995-9_80
Brady and Weil ( 2002) define bulk density as the mass (weight) of a unit volume of dry soil. Blake's ( 1965) definition states that this soil parameter is the ratio of the mass to the bulk, or microscopic volume of soil particles plus pore spaces in the sample. Therefore, the volume with which bulk density is concerned is that of the solid particles and pore space. Bulk density differs from particle density ( q.v.) in that the latter concerns the relationship between the mass and volume of only the solid particles in the soil excluding the volume of pore space. Bulk density and particle‐density values are used to compute pore space (see  Soil pores) in a soil using the following relationship:
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Bibliography

  1. Blake, G.R., 1965. Bulk density. In Black, C.A., ed., Methods of Soil Analysis, Vol. 1. Madison: American Society of Agronomy, pp. 374–390.Google Scholar
  2. Brady, N.C., and Weil, R.R., 2002. The Nature and Properties of Soils. New Jersey: Prentice Hall, 960 pp.Google Scholar
  3. Buol, S.W., Walker, M.P., and Southard, R.J., 2003. Soil genesis and classification, 5th edn. Ames, IA: Iowa State Press, 494 pp.Google Scholar
  4. Grossman, R.B., Brasher, B.R., Franzmeier, D.P., and Walker, J.L., 1968. Linear extensibility as calculated from natural clod bulk density measurements. Soil. Sci. Soc. America Proc., 32: 570–573.CrossRefGoogle Scholar
  5. Soil Survey Staff, 1996. Keys to Soil Taxonomy, 7th edn. Washington D.C: U.S. Dept. of Agriculture, Natural Resources Conservation Service, 545 pp.Google Scholar

Copyright information

© Springer 2008

Authors and Affiliations

  • Bryon W. Bache
  • Ward Chesworth
  • Ward Chesworth
  • Carlo Gessa
  • David T. Lewis

There are no affiliations available