{"id":334,"date":"2021-11-11T18:00:46","date_gmt":"2021-11-11T17:00:46","guid":{"rendered":"https:\/\/www.humus-form.eu\/?page_id=334"},"modified":"2023-08-24T16:28:52","modified_gmt":"2023-08-24T14:28:52","slug":"gliederung-der-of-horizonte","status":"publish","type":"page","link":"https:\/\/www.humus-form.eu\/?page_id=334","title":{"rendered":"Of-horizons"},"content":{"rendered":"

Olf
\n<\/strong>Of transition horizon (Ol-Of), in which the macroscopically detectable needle and leaf debris predominates over the organic fine matter (Figure 7b).
\n[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 – < 30 vol.%<\/li>\n<\/ol>\n

     <\/p>\n

    \n
    \"\"<\/a>

    Olf horizont, leaf material: common beech (Fagus sylvatica) with fungus mycelium,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a9 Jan Evers<\/p><\/div><\/blockquote>\n

    (-> L Mull-like F Mull)<\/a><\/p>\n

    Ohf
    \n<\/strong>Of transition horizon (Oh-Of) with a high to predominant proportion of organic fine matter and lower proportions of macroscopically recognisable remains of dead plant biomass\/litter (Figure 7c).
    \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 30 – < 70 vol.%<\/li>\n<\/ol>\n
      \n
      \"\"<\/a>

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

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

      (-> Moder-like F-Mull)<\/a><\/p>\n

      Odf
      \n<\/strong>Of modified horizon with root felt.
      \n[d from „stark d<\/strong>urchwurzelt“ (german for strong rooting)]<\/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 living fine roots \u2265 50 vol.%<\/li>\n<\/ol>\n

        (-> Rhizo F Mull)<\/a><\/p>\n

        Owf
        \n<\/strong>Of modified horizon, temporarily influenced by stagnic water or groundwater. Vegetation indicates wetness in the A horizon (Figure 14).
        \n[w from w<\/strong>ater influenced]<\/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 living fine roots \u2265 50 vol.%<\/li>\n
        4. temporarily anaerobic conditions and<\/li>\n
        5. grey to black colouring of the litter and<\/li>\n
        6. above recently water influenced hydromorphic A or H horizon<\/li>\n<\/ol>\n

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

          \"\"<\/a>

          Ol-horizon, leaf material: common oak (Quercus robur) on top of a hydromorphic\u00a0 Owf horizon,
          \u00a9 Gerhard Milbert<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

          Olf Of transition horizon (Ol-Of), in which the macroscopically detectable needle and leaf debris predominates over the organic fine matter (Figure 7b). [l from litter] organic carbon content \u2265 15 mass % and developed under aeromorphic to aero-hydromorphic conditions Proportion … Weiterlesen →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":148,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"yoast_head":"\nOf-horizons - Humus Form<\/title>\n<meta name=\"description\" content=\"Of, Olf, Ohf, Owf, Odf, Streu zerkleinert, fragmentiert, rudimentiert, skelettiert, geringer bis mittlerer Grd der Humifizierung, organische Feinsubstand 10 - 20 Volumen-%, Lagerungsform der Streu locker bis stark verfilzt\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.humus-form.eu\/?page_id=334\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Of-horizons - Humus Form\" \/>\n<meta property=\"og:description\" content=\"Of, Olf, Ohf, Owf, Odf, Streu zerkleinert, fragmentiert, rudimentiert, skelettiert, geringer bis mittlerer Grd der Humifizierung, organische Feinsubstand 10 - 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