%0 Journal Article
%A Shaaban, M.
%A Peng, Q.
%A Hu, R.
%A Lin, S.
%A Wu, Y.
%A Ullah, B.
%A Zhao, J.
%A Liu, Shurong
%A Li, Y.
%T Dissolved Organic Carbon and Nitrogen Mineralization Strongly Affect CO2 Emissions Following Lime Application to Acidic Soil
%J Journal of the Chemical Society of Pakistan
%V 36
%N 5
%@ 0253-5106
%C Karachi
%I Inst.
%M FZJ-2015-05370
%P 875-879
%D 2015
%X Emission of greenhouse gases from agricultural soils has main contribution to the climatic change and global warming. Dynamics of dissolved organic carbon (DOC) and nitrogen mineralization can affect CO<sub>2</sub> emission from soils. Influence of DOC and nitrogen mineralization on CO<sub>2</sub> emissions following lime application to acidic soil was investigated in current study. Laboratory experiment was conducted under aerobic conditions with 25% moisture contents (66% water-filled pore space) at 25°C in the dark conditions. Different treatments of lime were applied to acidic soil as follows: CK (control), L (low rate of lime: 0.2g lime / 100 g soil) and H (high rate of lime: 0.5g lime / 100g soil). CO<sub>2</sub> emissions were measured by gas chromatography and dissolved organic carbon, NH<sub>4</sub><sup>+</sup>-N, NO<sub>3</sub><sup>-</sup>-N and soil pH were measured during incubation study. Addition of lime to acidic soil significantly increased the concentration of DOC and N mineralization rate. Higher concentrations of DOC and N mineralization, consequently, increased the CO<sub>2</sub> emissions from lime treated soils. Cumulative CO<sub>2</sub> emission was 75% and 71% higher from L and H treatments as compared to CK. The results of current study suggest that DOC and N mineralization are critical in controlling gaseous emissions of CO<sub>2</sub> from acidic soils following lime application
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000349435900015
%U https://juser.fz-juelich.de/record/203434