Fig. 1. Soil organic carbon (SOC) and total N contents and C/N ratios in size separates of the different land-use systems at the Wushwush and Munesa sites. Letters above the bars indicate significant differences between mean values of the same size separates of the different land use systems at P < 0.05; N. forest, natural forest; T. plantation, Tea plantation; C. plantation, Cupressus plantation.