Hygroscopic coefficient

{
  "id": "MLC-T-MET-006374",
  "term": "Hygroscopic coefficient",
  "field": "Meteorology and atmospheric science",
  "definition": "The maximum amount of water vapor that a soil or other porous material can absorb from a saturated atmosphere at a specific temperature, expressed as a percentage of its dry weight. This value represents the water held by hygroscopic forces, which is generally unavailable to plants. It is a measure of the material's capacity to attract and retain atmospheric moisture.",
  "url": "https://mlchart.com/terminology/meteorology/hygroscopic-coefficient/"
}