Concepts
Register of all vocabulary concepts in this system.
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Displaying 941 to 960 of 1212 items.
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Very hard Very resistant to pressure; can be broken in the hands only with difficulty.
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Loamy soils with high clay content, clayey soils. Sample remains intact when dropped, no further disintegration after application of very large pressure.
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Very low (fibric) class of decomposition: < 0.04g cm-3
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Wire formable and can be bent into a ring; moderately strong to very strong force required for deformation of the soil mass.
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After pressure, soil material adheres strongly to both thumb and finger and is decidedly stretched when they are separated.
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Very strongly salty soil with salt content 8–15 dS m-1
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Very wide surface crack with width 5cm - 10 cm
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Very widely spaced surface crack with distance more than 5 m
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Very young (1–10 years) anthropogeomorphic: with complete disturbance of natural surfaces (and soils) such as in urban, industrial and mining areas with very early soil develo...
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Very young (1–10 years) natural: with loss by erosion or deposition of materials such as on tidal flats, of coastal dunes, in river valleys, landslides or desert areas.
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Discontinuous spherical or elliptical voids (chambers) of sedimentary origin or formed by compressed air, e.g. gas bubbles in slaking crusts after heavy rainfall. Relatively u...
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The layer has large, equidimensional voids that may be filled with uncemented material.
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Location of coatings and clay accumulation in the form of voids
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Mostly irregular, equidimensional voids of faunal origin or resulting from tillage or disturbance of other voids. Discontinuous or interconnected. May be quantified in specifi...
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Gravimetric water retention refers to the amount of water held by the soil measured by weight, often expressed in terms of mass per unit mass of soil. It is a fundamental meth...