Study of soil carbon mineralization rate during temperature incubation in forest ecosystem

farshad keivan behjou¹ Sholeh hajaghamemar²

1) Professor, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili
2) M.Sc. Graduated student in Rangeland Sciences, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili

IOI Code : XDHF-FGZFG
Publication : Conservation of Natural Resources & Environment(envprouma.ir/3rd)
Abstract :
    Soil carbon mineralization or soil respiration include a large part of the biosphere respiration So that the terrestrial ecosystems are second largest source carbon emissions. The temperature dependence of Soil carbon mineralization was part of numerous ecosystem respirations. One of the most effective methods to understand soil carbon mineralization is the incubation soil in controlled conditions. Therefore, the rate of soil carbon mineralization with increasing temperature was conducted in 10, 20 and 30 C° levels to three deep 0-10, 10-20 and 20-30 cm of soil in the forest Fandoghlou of Ardebil. Based on the results carbon mineralization increased with increase temperature in all depth of soil. Third depth (30-20 cm) in each temperature levels, carbon mineralization rate were the lowest. The results of this study clearly showed the increase of temperature increase carbon mineralization. Based on regression analysis, Logarithmic and exponential models showed best fit to the data of carbon mineralization rate in incubation time.

Keywords : forest ecosystem soil respiration logarithmic and exponential models