The aim of this research is to determine the effect of different land cover and peat fires to changes in Chemical characteristics of the peat soil. The determination of the observation block was based on types of land cover and land conditions. The types of land cover are natural peatlands as gelam forest, planted blocks 0, 1, 2 and 3 year (denoted as TBM-0, TBM-1, TBM-2 and TBM-3) and producin…