Klassificering av en horisont i enlighet med klassificeringssystemet för horisonter i Guidelines for soil description, 4th edition, Food and Agriculture Organization of the United Nations, Rome, 2006 (FN:s livsmedels- och jordbruksorganisation). ###>A classification of a horizon according to the Horizon classification system specified in Guidelines for soil description, 4th edition, Food and Agriculture Organization of the United Nations, Rome, 2006.