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  2. Aridisol - Wikipedia

    en.wikipedia.org/wiki/Aridisol

    Aridisols (or desert soils) are a soil order in USDA soil taxonomy. [1] Aridisols (from the Latin aridus, for "dry", and solum) form in an arid or semi-arid climate. Aridisols dominate the deserts and xeric shrublands, which occupy about one third of the Earth's land surface. Aridisols have a very low concentration of organic matter, reflecting ...

  3. Desert - Wikipedia

    en.wikipedia.org/wiki/Desert

    Like arid deserts, temperatures can vary greatly in semi deserts. They share some characteristics of a true desert and are usually located at the edge of deserts and continental dry areas. They usually receive precipitation from 250 to 500 mm (9.8 to 19.7 in) but this can vary due to evapotranspiration and soil nutrition.

  4. Desert ecology - Wikipedia

    en.wikipedia.org/wiki/Desert_ecology

    Desert ecology is the study of interactions between both biotic and abiotic components of desert environments. A desert ecosystem is defined by interactions between organisms, the climate in which they live, and any other non-living influences on the habitat. Deserts are arid regions that are generally associated with warm temperatures; however ...

  5. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    The physical properties of soil, in order of decreasing importance for ecosystem services such as crop production, are texture, structure, bulk density, porosity, consistency, temperature, colour and resistivity. [1] Soil texture is determined by the relative proportion of the three kinds of soil mineral particles, called soil separates: sand ...

  6. Thar Desert - Wikipedia

    en.wikipedia.org/wiki/Thar_Desert

    Thar Desert. /  27°N 71°E  / 27; 71. The Thar Desert, also known as the Great Indian Desert, is an arid region in the north-western part of the Indian subcontinent that covers an area of 200,000 km 2 (77,000 sq mi) in India and Pakistan. It is the world's 18th-largest desert, and the world's 9th-largest hot subtropical desert.

  7. USDA soil taxonomy - Wikipedia

    en.wikipedia.org/wiki/USDA_soil_taxonomy

    A soil family category is a group of soils within a subgroup and describes the physical and chemical properties which affect the response of soil to agricultural management and engineering applications. The principal characteristics used to differentiate soil families include texture, mineralogy, pH, permeability, structure, consistency, the ...

  8. Calcisol - Wikipedia

    en.wikipedia.org/wiki/Calcisol

    Calcisol. A Calcisol in the World Reference Base for Soil Resources (WRB) [1] is a soil with a substantial secondary accumulation of lime. Calcisols are common in calcareous parent materials and widespread in arid and semi-arid environments. Formerly Calcisols were internationally known as Desert soils and Takyrs .

  9. Soil formation - Wikipedia

    en.wikipedia.org/wiki/Soil_formation

    Plants can form new chemicals that can break down minerals, both directly [101] and indirectly through mycorrhizal fungi [25] and rhizosphere bacteria, [102] and improve the soil structure. [103] The type and amount of vegetation depend on climate, topography, soil characteristics and biological factors, mediated or not by human activities.