Andisols

{
  "id": "MLC-T-ENV-001424",
  "term": "Andisols",
  "field": "Environment",
  "definition": "The central concept of an Andisol is that of a soil developing in volcanic ejecta (such as volcanic ash, pumice, cinders, and lava) and/or in volcaniclastic materials, the colloidal fraction of which is dominated by short-rangeorder minerals or Al-humus complexes. Under some environmental conditions, weathering of primary aluminosilicates in parent materials of nonvolcanic origin may also lead to the formation of short-range-order minerals. Some of these soils also are included in Andisols. The dominant processes in most Andisols are weathering and mineral transformation. Translocation within the soils and accumulation of the translocated compounds are normally minimal. The accumulation of organic matter, complexed with aluminum, however, is characteristic of Andisols in some regimes.",
  "references": [
    "USDA Natural Resources Conservation Service Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys (1999)"
  ],
  "url": "https://mlchart.com/terminology/environment/andisols/"
}