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Article: Soil bulk density evaluation by conventional and nuclear methods.
- Article from:
- Australian Journal of Soil Research
- Article date:
- January 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Soil bulk density is traditionally used as an indicator of soil structure (Gantzer and Anderson 2002) and soil compaction (Martinez and Zinck 2004; Reichardt and Timm 2004). Soil structural degradation can be caused by traffic during management practices (Dias Junior 2003), and by natural mechanisms of soil material consolidation during wetting/drying cycles (Cassel 1983; Onstad et al. 1984). An increase in soil compaction leads to an increase in soil bulk density (Dias Junior et al. 1999) with a consequent decrease in total porosity of the porous medium (Servadio et al. 2001). This in turn limits water infiltration and redistribution processes in ...
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