Academic journal article Borneo Research Bulletin

Proc. of Int. Workshop on Evaluation and Sustainable Management of Soil Carbon Sequestration in Asian Countries: Properties of Indonesian Peat in Relation to the Chemistry of Carbon Emission

Academic journal article Borneo Research Bulletin

Proc. of Int. Workshop on Evaluation and Sustainable Management of Soil Carbon Sequestration in Asian Countries: Properties of Indonesian Peat in Relation to the Chemistry of Carbon Emission

Article excerpt

The discussion is focused on several properties of peat, such as the composition of peat materials, critical water content in relation to irreversible drying, concentration of -COOH, and the chemistry of C emission as a result of the reduction and oxidation processes of peat materials. The experiments were divided into two steps: (i) laboratory experiments and (ii) field experiments. For the laboratory experiments, peat samples of fibric, heroic and sapric decomposition degrees were taken from Jambi, Sumatra and Central Kalimantan. In the field, the experiments were focused in Central Kalimantan. Based on the research results, the composition of peat material is rather similar, being mostly rich in wood containing high content of lignin that varies from 65 to 80% for the peats of Jambi, and 78 to 93% for the peats of Central Kalimantan. The content of cellulose was mostly less than 10%, while hemi-cellulose and protein were not detected. The main organic acids, as a result of lignin biodegradation and the sources of C-release, are of the aromatic group consisting mainly of derivative phenolic acids. …

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