Dissolved Organic Carbon Flux on a Toposequent in Bukit Dua Belas National Park, Indonesia
DOC fluxes were analized and studied within soil profiles on a toposequence transect of Bukit Dua Belas National
Park, Sarolangun district, Jambi, Indonesia. NPOC (Non Purgeable Organic Carbon) method was applied to get the DOC
concentration. Amount and DOC flux from soil horizons on the lower slope is significantly higher than that from middle
and upper slopes. Amount and DOC flux from AO soil horizon is significantly higher than that from AB and B soil horizons.
DOC was maximally accumulated from AO soil horizon of soil profile on lower slope during rainy season.
Keywords- DOC flux, slope, soil horizon