Spectroscopic Analysis and Dynamics of Dissolved Organic Carbon from an Oil Palm Plantation Peatland

Drainage following conversion of peatlands to oil palm plantations is always associated with carbon (C) loss, one which dissolved organic (DOC). Analytical procedure commonly used determine DOC the high-temperature combustion (HTC) method, requires an expensive instrument. An alternative low-cost method has been developed. The objectives this research were and validate most suitable UV-Vis spectrophotometer’s wavelength for estimating concentration evaluating its dynamics from oil-palm plantation Indonesian-peatland. concentrations measured on ground water canal samples at wavelengths 254, 270, 350 nm analytical results then validated against those reference values resulted use HTC using Total Organic Carbon Analyzer (TOC Analyzer), based simple regression analysis. showed that spectrophotometer was nm. in groundwater (35.67 ± 8.40 mg L-1) around two times greater than (16.26 4.15 L-1). flux area range 0.66 ˗ 1.15 g C m-2 month-1, average 0.85 month-1.