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Soil peds should be described when the soil is dry or slightly moist, as they can be difficult to distinguish when wet. [1] An artificially formed aggregate of soil particles can be called a clod. [2] There are five major classes of macrostructure seen in soils: platy, prismatic, columnar, granular, and blocky. There are also structureless ...
Soil bulk density, when determined at standardized moisture conditions, is an estimate of soil compaction. [3] Soil porosity consists of the void part of the soil volume and is occupied by gases or water. Soil consistency is the ability of soil materials to stick together. Soil temperature and colour are self-defining.
Soil sieve nests with dry soil aggregates after removal from a laboratory drying oven. Soil aggregate stability is a measure of the ability of soil aggregates—soil particles that bind together—to resist breaking apart when exposed to external forces such as water erosion and wind erosion, shrinking and swelling processes, and tillage.
Soil Profile on Chalk at Seven Sisters Country Park, England. Pedology (from Greek: πέδον, pedon, "soil"; and λόγος, logos, "study") is a discipline within soil science which focuses on understanding and characterizing soil formation, evolution, and the theoretical frameworks for modeling soil bodies, often in the context of the natural environment. [1]
Soil morphology is the branch of soil science dedicated to the ... Structure is often best evaluated while the soil is relatively dry, as peds may swell with moisture ...
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Cutans are the modification of the soil texture, or soil structure, at natural surfaces (particle, pore, or ped) in soil materials due to illuviation.Cutans are oriented deposits [1] which can be composed of any of the component substances of the soil material. [2]
WASHINGTON (Reuters) -A massive winter storm moving across the United States will not keep the U.S. Congress from meeting on Monday to formally certify Republican Donald Trump's election as ...