Forest structure change after forest fire in peatland of Central Kalimantan

Abstract The hydrological system of tropical peatland has been changed due to drainage. condition caused prone burning. Forest fire affected the vegetation composition in peatland. Repeated causes more severe impact on and change characteristics. aim study is obtain species after Central Kalimantan. research was conducted several plots observation that burned 2015 (three years forth frequency). plot sizes were depending stage (seedling, sapling, poles, trees) 2 Ha or 50 plots. measurements parameter species, density, frequency, important value index. described by ecological indices such as Shannon wiener index, Simpson evenness results showed diversity index very low. That indicated natural regeneration obstructed. Combretocarpus Rotundatus Cratoxylon glaucum presented overall tree pioneer but climax didn’t found three forest fire. Based results, repeated fires an extreme decrease so ability recovery not running well. parameters can be used determining priority revegetation program large scale.