calcareous soil


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calcareous soil

(kălkâr`ēəs), soil formed largely by the weathering of calcareous rocks and fossil shell beds. Different varieties usually contain chalk, marl, and limestone and frequently a large amount of phosphates. They are often very fertile, as in the case of the buckshot soils of the S United States. Sometimes calcareous soils are flinty, thin, and dry. They often form a large part of the soil of deserts, which may prove very fertile when sufficient moisture for crops is applied.

calcareous soil

[kal′ker·ē·əs ′sȯil]
(geology)
A soil containing accumulations of calcium and magnesium carbonate.
References in periodicals archive ?
Molina MJ, Garcia-Fayos P, Sanroque P (1994) Short-term changes on aggregate stability and organic matter content after forest fires in calcareous soil in Valencia (Spain).
Hettiarachchi GM, Lombi E, McLaughlin MJ, Chittleborough DJ, Self P (2006) Density changes around phosphorus granules and fluid bands in a calcareous soil.
The formation of macroaggregates (>250 [micro]m) in the semi-arid calcareous soil (Typic Calcixerept) and the contiguous decarbonated terra rosa (Calcic Haploxerept) from the same agricultural field occurred within days when these soils were incubated with fresh organic matter and in appropriate conditions of water content, C/N ratio and temperature.
Lombi E, McLaughlin MJ, Johnston C, Armstrong RD, Holloway RE (2004) Mobility and lability of phosphorus from granular and fluid monoammonium phosphate differs in a calcareous soil.
Mendoza C, Assadian NW, Lindemann W (2006) The fate of nitrogen in a moderately alkaline and calcareous soil amended with biosolids and urea.
A surface layer of a calcareous soil was collected at Ahvaz located (Khouzestan, Southwestern of Iran) and mixed with sand in the ratio 1:2 (sand: soil).
2006) reported that MB-P was the most important P fraction controlling available P in a calcareous soil and that application of manure stimulated the synthesis of soil microbial biomass or labile microbial metabolites.
2006), who reported no problems with this approach for measuring OC in calcareous soil.
Mass balance and heavy metal diffusion in a calcareous soil, five years after sewege sluge consumption.
Samadi A, Gilkes RJ (1999) Phosphorus transformations and their relationships with calcareous soil properties of Southern Western Australia.
They applied mardinite-type zeolite to a very fine calcareous soil and increased the infiltration rate and reduced the surface runoff [N.