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The bulk density of soil reflects the mass or weight of a certain volume of soil. Soil bulk density determines the infiltration, available water capacity, soil porosity, rooting depth/restrictions, soil microorganism activity, root proliferation, and nutrient availability.
24 Ιουν 2021 · Bulk density, particle density, and porosity are three soil physical properties exemplifying the relationships among the soil phases. The volume of voids in soil is related to the percentages of sand, silt and clay (soil texture) and to the arrangement of these soil particles soil structure.
Bulk density is defined as the mass of soil per unit volume, typically expressed in grams per cubic centimeter (g/cm³). This measurement is crucial as it reflects the soil's compaction and porosity, which directly influences its ability to retain water and support plant growth.
24 Ιουν 2021 · Bulk density is the dry mass of a soil divided by the total soil volume. The bulk density value for soil is calculated using the formula: Bulk Density = mass (g) oven dry soil / total soil volume (cm 3 )
Bulk density is a key indicator of soil quality that is assessed during soil surveys. High bulk density values can signal compaction or degradation, which directly impacts nutrient availability and plant growth.
Bulk density plays a critical role in determining soil compaction levels and overall engineering properties. A higher bulk density indicates denser soils that are less porous, which can lead to increased load-bearing capacity but reduced drainage.
1 Ιαν 2014 · The bulk density: an integrative soil physical property. The definition of the bulk density in Equation 1, addressing explicitly the total mass of solids and the total volume it occupies, indicates that it is a physical macro-property related to both soil texture and structure.
