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  • Thumbnail for World Reference Base for Soil Resources
    The World Reference Base for Soil Resources (WRB) is an international soil classification system for naming soils and creating legends for soil maps. The...
    27 KB (3,815 words) - 15:07, 11 February 2025
  • friable, often underlain by marl, or marly clay.[citation needed] The World Reference Base for Soil Resources (WRB) defines "sapric" (sa) as a histosol having...
    8 KB (805 words) - 05:05, 16 November 2024
  • Thumbnail for Chernozem
    its high moisture-storage capacity. Chernozems are a Reference Soil Group of the World Reference Base for Soil Resources (WRB). The name comes from the Russian...
    17 KB (1,640 words) - 06:33, 11 June 2025
  • Thumbnail for Podzol
    prominent other soil-forming processes. The term Podzols is used in the World Reference Base for Soil Resources (WRB) and in many national soil classification...
    18 KB (1,881 words) - 06:43, 30 April 2025
  • A reference is a relationship between objects in which one object designates, or acts as a means by which to connect to or link to, another object. The...
    11 KB (1,339 words) - 17:02, 23 February 2025
  • Thumbnail for Soil classification
    genesis. Systems have developed, such as USDA soil taxonomy and the World Reference Base for Soil Resources, which use taxonomic criteria involving soil morphology...
    21 KB (2,385 words) - 10:25, 25 April 2025
  • Thumbnail for Andisol
    materials, including allophane, imogolite and ferrihydrite. In the World Reference Base for Soil Resources (WRB), andisols are known as Andosols. Because...
    4 KB (361 words) - 02:01, 19 February 2025
  • Thumbnail for Anthroposol
    Anthroposol (category Articles needing additional references from June 2018)
    Anthrosols (China). The World Reference Base for Soil Resources (WRB) offers some guidelines for classification. This system is based on a large scale and...
    9 KB (1,202 words) - 15:12, 10 May 2024
  • Thumbnail for Soil type
    characteristics inherited from the parent material. Examples are the World Reference Base for Soil Resources (WRB) and the USDA soil taxonomy. Other systems...
    5 KB (535 words) - 07:43, 25 April 2025
  • football and basketball. Sports Reference also operate the online sports trivia game Immaculate Grid and the statistics-based subscription service Stathead...
    13 KB (1,044 words) - 01:56, 3 June 2025
  • Thumbnail for Entisol
    properties, suborders of entisols form individual Reference Soil Groups in the World Reference Base for Soil Resources (WRB): psamments correlate with...
    5 KB (468 words) - 18:51, 19 February 2025
  • The World Geographic Reference System (GEOREF) is a geocode, a grid-based method of specifying locations on the surface of the Earth. GEOREF is essentially...
    7 KB (897 words) - 13:26, 4 November 2024
  • Thumbnail for Vertisol
    vertisol is a Soil Order in the USDA soil taxonomy and a Reference Soil Group in the World Reference Base for Soil Resources (WRB). It is also defined in many...
    8 KB (977 words) - 22:06, 20 May 2025
  • Thumbnail for Oxisol
    Oxisol (category Articles needing additional references from July 2022)
    forest within 25 degrees north and south of the Equator. In the World Reference Base for Soil Resources (WRB), they belong mainly to the ferralsols, but...
    8 KB (881 words) - 10:35, 8 June 2025
  • Thumbnail for Phaeozem
    A Phaeozem in the World Reference Base for Soil Resources (WRB) is a dark soil with a high base status, but without a secondary carbonates within one...
    3 KB (223 words) - 05:37, 17 August 2023
  • Thumbnail for Gelisol
    (soil study) Soil classification IUSS Working Group WRB (2022). "World Reference Base for Soil Resources, fourth edition" (PDF). International Union of...
    6 KB (655 words) - 14:09, 24 January 2025
  • entirely of material of loamy sand or coarser in texture. In the World Reference Base for Soil Resources (WRB), most Psamments belong to the Arenosols...
    4 KB (551 words) - 20:41, 15 August 2023
  • serves as basis for the Harmonized World Soil Database. In 1998 this system was replaced by the World Reference Base for Soil Resources. Acrisols Andosols...
    4 KB (357 words) - 06:08, 27 March 2024
  • Thumbnail for Histosol
    In both the World Reference Base for Soil Resources (WRB) and the USDA soil taxonomy, a Histosol is a soil consisting primarily of organic materials. They...
    7 KB (734 words) - 06:40, 25 April 2025
  • Thumbnail for Lixisol
    Lixisols are a Reference Soil Group of the World Reference Base for Soil Resources (WRB). They are soils with subsurface accumulation of low activity clays...
    1 KB (117 words) - 09:17, 17 August 2023
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