Concept information
PREFERRED TERM
ANAndosols
TYPE
-
http://stats-class.fao.uniroma2.it/ontologies/WRB#soil_group
DEFINITION
- Soils distinguished by Fe/Al chemistry - Allophanes or Al-humus complexes. Other soils having: 1. one or more layers with andic or vitric properties with a combined thickness of either: a. ≥ 30 cm, within ≤ 100 cm of the soil surface and starting ≤ 25 cm from the soil surface; or b. ≥ 60% of the entire thickness of the soil, if continuous rock, technic hard material or a cemented or indurated layer starts > 25 and ≤ 50 cm from the soil surface; and 2. no argic, ferralic, petroplinthic, pisoplinthic, plinthic or spodic horizon, unless buried deeper than 50 cm from the mineral soil surface. (en)
EXACTLY MATCHING CONCEPTS
- http://lod.nal.usda.gov/nalt/216340
URI
http://stats-class.fao.uniroma2.it/WRB/v2014/Andosols
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