Gley

Cards (10)

  • Limited vegetation produces a thin acidic organic layer, also known as humus.
  • Low temperatures cause a slow rate of decomposition.
  • Heavy precipitation can cause waterlogging.
  • Limited vegetation is often found on flat surfaces as relief can cause drainage problems.
  • Impermeable clays can impede drainage.
  • Waterlogged soil creates anaerobic conditions, meaning iron compounds are changed from red brown to blue, due to oxygen being extracted by microorganisms.
  • Cold temperatures conditions mean few organisms can survive.
  • Re-oxygenation of the iron in the soil can cause a red mottling effect.
  • Shale, raw lines, and minerals can cause large chunks of angular rock to be brought up to the A and B horizons.
  • Gley Diagram