This study done aimed to investigating of the relationship between LAI and soil carbon sequestration in Chamestan Forest and Rangeland Research Station in a completely randomized design, which Oak (Quercus castaneifolia) has been planted in pure and mixed with any More
This study done aimed to investigating of the relationship between LAI and soil carbon sequestration in Chamestan Forest and Rangeland Research Station in a completely randomized design, which Oak (Quercus castaneifolia) has been planted in pure and mixed with any of the species including Siberian Elm (Zelkova carpinifolia), Maple (Acer velutinum), Hackberry (Celtis australis) and Hornbeam (Carpinus betulus) in 1995. For sampling of leave, six trees were selected from each species in each treatment. The leaf area index was determined by gravimetric method. The effectiveness of each forest stand on carbon sequestration was studied in two soil depths of 0-20 cm and 21-60 cm. The results showed that the highest and lowest amount of LAI was calculated for Oak-Maple mixed stand (5.96) and Oak-Elm mixed stand (3.63) respectively. Oak trees have the lowest LAI in Oak-Maple plantation. Soil carbon sequestration in pure stand of Oak was estimated 92.8 ton/hectare in the first depth and mixed stand of Oak-Hornbeam has the highest (120.16 t/ha) and bare land treatment has the lowest (75.0 t/ha) soil carbon sequestration amount. This parameter at second soil depth of 40 cm varies at the rate of 96.56 to 145.86 t/ha and different stands were not significantly different in this respect. The Pearson correlation hasn’t shown coefficient between LAI and soil carbon sequestration to this age of plantations.
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