Abstract
Changes in the soil carbon (C) stocks of degraded peatlands due to drainage, fire, or conversion of forest cover have not been studied much. This study aims to determine the characteristics of soil C stocks in degraded peatland covers due to logging and fire. The research was carried out on peatlands located in three villages representing peatland cover conditions in the form of primary/pristine peat swamp forest, logged-over forest, and post-fire peatland. Peat samples from each type of peatland cover were analyzed to determine the bulk density (BD) and C concentration. The results showed that peatland on the logged-over forest has the highest BD (0.135 gr cm−3) compared to the other sites. Based on the distribution of peat depth, the lowest BD was mainly found at the surface peat layers and increased significantly with the depth of peat. The C concentration with the mean value of 57.6% showed no significant differences among the three locations and at different depths. Soil C stocks in the upper one-meter depth were 621, 779, and 606 Mg ha−1 in the peat swamp forest, logged-over forest, and post-fire peatland, respectively. The total soil C stocks were ultimately determined by the peat thickness in the area.
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