Bulk Density
2013; Linguagem: Inglês
10.2134/agronmonogr9.1.c30
ISSN2156-3276
Autores Tópico(s)Soil and Unsaturated Flow
ResumoSoil bulk density Db is the ratio of the mass to the bulk or macroscopic volume of soil particles plus pore spaces in a sample. In most agricultural soils work, bulk density is expressed in grams per cubic centimeter. In these units volume weight is equal, and bulk specific gravity is nearly equal, numerically, to bulk density. The term bulk density is preferred over the terms volume weight, bulk specific gravity or apparent specific gravity. It is often desired to make other measurements on the same samples taken for bulk density. Water content determinations, like bulk density, do not require that the soil be kept undisturbed during transport to the laboratory and drying. Calculate bulk density from the oven-dry mass of the excavated sample and the volume of the test excavation. The bulk density of clods, or coarse peds, can be calculated from their mass and volume.
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