Results of sequential selective dissolution of podzol soils from two sites Young (35 years since clearcutting) and Mature (110 years since clearcutting).

Numbers in brackets are ±1 SD; n = 3 for C and Fe, and n = 1 for Al. Extractions are water soluble (deionized water), organo-metal (acid Na-pyrophosphate), poorly crystalline (hydroxylamine), and crystalline (Na-dithionite) minerals. Note that analysis of δ13C of hydroxylamine was not possible due to technical limitations.