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subsoil
(redirected from subsoils)

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subsoil

Layer (stratum) of earth immediately below the surface soil, consisting predominantly of minerals and leached materials such as iron and aluminum compounds. Humus remains and clay accumulate in subsoil, but the teeming macroscopic and microscopic organisms that make the topsoil rich with organic matter spend little time in the subsoil layer. Below the subsoil is a layer of partially disintegrated rock, and underlying bedrock. Stripping topsoil while clearing land for crop growth or commercial development exposes the subsoil and increases the rate of erosion of soil minerals.
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Earth, especially clay-rich subsoils, as a building material has the benefit of being local, abundant, affordable (dirt cheap), and non-toxic.
Cob cottage in Montford: natural building is a community affair by New Life Journal
The poorly drained Bryce and Swygert soils, with their tight subsoils, are much different than the Sable and Harpster soils at the first location.
Down the Line by Finck, Charlene / Farm Journal
There is widespread damage with reports of several power outages and failures, burst water lines, landslides, and temporary closure of Yonago Airport due to settlement of the runway, probably due to liquefaction of the subsoils.
EQE Investigates Japan Earthquake by Business Wire
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