{"id":495,"date":"2021-11-24T14:16:59","date_gmt":"2021-11-24T13:16:59","guid":{"rendered":"https:\/\/www.humus-form.eu\/?page_id=495"},"modified":"2023-08-24T16:01:40","modified_gmt":"2023-08-24T14:01:40","slug":"typischer-l-mull","status":"publish","type":"page","link":"https:\/\/www.humus-form.eu\/?page_id=495","title":{"rendered":"Typical L Mull"},"content":{"rendered":"

In a Typical L Mull<\/em>,<\/strong> litter decomposition is slower than at A Mull<\/em> sites. The litter is decomposed and incorporated into the mineral soil within <2 years. Due to high soil biological activity, the Ax horizon or Au horizon is usually rich in organic matter and has a predominantly granular or subangular blocky or angular blocky structure. In loamy sand and sandy loam soils, Ah horizons with a less pronounced granular structure and subangular blocky structure can also occur. The A horizon shows clear signs of high biological activity such as earthworm casts and channels showing recent earthworm activity. The A horizon also shows worm casts at the soil surface, occurrence and activity of macro- and mesofauna and their faecal pellets (especially springtails, mites and small annelids, isopods, and millipedes). The distinct features of a Typical L Mull <\/em>are:<\/p>\n