{"id":148,"date":"2021-11-07T17:48:53","date_gmt":"2021-11-07T16:48:53","guid":{"rendered":"https:\/\/www.humus-form.eu\/?page_id=148"},"modified":"2023-08-24T17:51:45","modified_gmt":"2023-08-24T15:51:45","slug":"o-horizonte","status":"publish","type":"page","link":"https:\/\/www.humus-form.eu\/?page_id=148","title":{"rendered":"O-horizons"},"content":{"rendered":"

Ol
\n<\/strong>O horizon, consists almost exclusively of undecomposed or poorly decomposed dead plant biomass, partly dotted, mottled, browned, wavy, weakly cracked, pitted and notched [l from l<\/strong>itter]<\/p>\n

    \n
  1. organic carbon content \u2265 15 mass % and<\/li>\n
  2. developed under aeromorphic to aero-hydromorphic conditions<\/li>\n
  3. Proportion of organic fine matter < 10 vol.%<\/li>\n<\/ol>\n

    Subdivision of Ol horizon<\/strong><\/a><\/p>\n

    \n
    \"\"<\/a>

    Ol horizont, leaf material common beech (Fagus sylvatica), \u00a9 Gerhard Milbert<\/p><\/div><\/blockquote>\n

    Ol horizont, leaf material common beech (Fagus sylvatica<\/em>),
    \n\u00a9 Gerhard Milbert<\/p>\n

    Of
    \n<\/strong>O horizon consisting of dead plant biomass, more decomposed than in the Ol horizon. Remains of sprout, leaf and needle are crushed, skeletonised, fragmented to rudimentary, mostly bleached or greyish. Packing of the leaf litter: loose, glued together or stacked. Packing of the needle litter: loose, attached to felted. Organic fine matter is clearly recognisable.
    \n[f from f<\/strong>ragmented]<\/p>\n

      \n
    1. organic carbon content \u2265 15 mass % and<\/li>\n
    2. developed under aeromorphic to aero-hydromorphic conditions<\/li>\n
    3. Proportion of organic fine matter 10 – < 70 vol.%<\/li>\n<\/ol>\n

      (->F Mull<\/em>)<\/p>\n

      Subdivision of Of horizon<\/strong><\/a><\/p>\n

      \n
      \"\"<\/a>

      Of-horizon, poor in organic fine material, leaf material common beech (Fagus sylvatica), with spiderweb material and faunal droppings, \u00a9 Jan Evers<\/p><\/div><\/blockquote>\n

      Oh
      \n<\/strong>O horizon with dominating organic fine matter and only a small proportion of macroscopically recognisable remains of dead plant biomass\/litter.
      \n[h from h<\/strong>umified]<\/p>\n

        \n
      1. organic carbon content \u2265 15 mass % and<\/li>\n
      2. developed under aeromorphic to aero-hydromorphic conditions<\/li>\n
      3. Proportion of organic fine matter \u2265 70 vol.%,<\/li>\n<\/ol>\n

        Subdivision of\u00a0 Oh-horizons<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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