The present study was conducted to investigate the effect of tree mixture on Carbon sequestration in
cupressus arizonica
plantations. Emission of carbon dioxide via human activities is known as the main cause of global
warming. Therefore, in this study, soil carbon sequestration in mixed and pure stands was measured in order to compare
the effect of tree mixture on the amount of carbon stored in the top mineral soil layer. The study site was Khargosh
Valley Forest Park, located in Tehran province. This study included 4 different type of stands, the pure
Cupressus arizonica, the pure
Pinus eldarica
, the mixed
Cupressus arizonica and
Pinus eldarica and the mixed
Cupressus arizonica with deciduous hardwoods. Sampling method was done with a Systematic random network with dimensions
75 × 75 m. Samples parts were Square with dimensions of 20 x 20 m. At each plot center, forest floor was sampled from
the first 10 cm of soil. To analyze the data one way analyses of variance (ANOVA) in SPSS v.20 was used to assess the
Soil parameters. Tukey’s tests were used to test significant effects (p ≤ 0.05). Our results showed that the mean Carbon
sequestration in the mixed plantations of
Cupressus arizonica with deciduous hardwoods trees soils was greater than the
other stands which in the standing mixed
Cupressus arizonica and
Pinus eldarica was lower than the pure stands. Our
results Recommended for establishment ofconifer plantation, used mixed culture of Conifers with broadleaf Instead of
pure cultures conifers.
