Abstract:This study investigated the accumulation, distribution and biological cycling of four microelements (Fe, Mn, Cu, Zn) in a second rotation Chinese fir plantations at the Huitong Ecological Station, Hu′nan Province of China. The quantities of micronutrients in the system could be ranked in the following order: Fe (303558.9 kg/hm 2) > Mn (1783.7 kg/hm 2) > Zn (1672.0 kg/hm 2) > Cu (275.2 kg/hm 2). The greatest pool of micronutrients was in the soil, and the next largest pool was in overstorey trees. The sm...