There was significant difference in SOC in different land use
pattern. In our study the highest organic carbon was found
under agroforestry system (1.438%) and the lowest organic
carbon was found under fallow land (0.124% for 20-30 cm).
Cropland and grassland organic carbon were found respectively
0.63% and 0.39% for top soil respectively [Fig. 1a]. It is well
known that tree species strongly influence the forest floor in
terms of C stock and chemistry, it also regulate annual carbon
turn over. It was reported that the highest SOC stock found
under forestland and the lowest under grassland [8]. Greater
organic matter inputs in agroforestry systems contribute to the
long-term storage of carbon (C) in the soil [9]. It was observed
that organic carbon decreased when depth increased. Highest
organic carbon found for 0-10 cm depth in all land use types. It
was reported that SOC contents decreased usually with
increasing soil depth, with significant differences in different
horizon [10]. Differences of SOC also found under different
agricultural land use pattern where crop intensification showed
lower SOC accumulation and higher SOC depletion. In case of
agricultural cropped land single and double cropped land found
significant similar SOC in the top soil but lower in other depth.
Higher SOC was found in double cropped land and lower in
triple cropped land [fig. 1b].When soil used frequently for
cultivation then more nutrient of soil used by the crop; intensify
crop cultivation from cropland accelerate higher carbon loss
than other ecosystem