Fig. 4

The characteristics of dry (a and b) and wet (c and d) soil stable aggregate size distribution under different AFPs and soil depth variations, HAFP = homegarden based agroforestry, ClAFP = cropland based agroforestry practices, WlAFP = woodlot based agroforestry practices and TSWAFP = trees on soil and water conservation measures based agroforestry practices, bars with the same small case letters are not significant at P < 0.05