soil profile of a technosol neasoil profile of a podzol or spodosol near bippen in northwesternr bielefeld in northwestern germany

acid acidic aging albic alternative barren bleached decompose decomposition dirt dry ecosystem eluvial eluviation forest geology germany hardpan humus illuvial layer leaching mineral moraine ortstein ortsteinic particles pedon perspective podsol podsolization podzol profile protection quartz sand soil solum spodic spodosol subsoil topsoil trees washout weathered