TY  - JOUR
AU  - Shaaban, M.
AU  - Peng, Q.
AU  - Hu, R.
AU  - Lin, S.
AU  - Wu, Y.
AU  - Ullah, B.
AU  - Zhao, J.
AU  - Liu, Shurong
AU  - Li, Y.
TI  - Dissolved Organic Carbon and Nitrogen Mineralization Strongly Affect CO2 Emissions Following Lime Application to Acidic Soil
JO  - Journal of the Chemical Society of Pakistan
VL  - 36
IS  - 5
SN  - 0253-5106
CY  - Karachi
PB  - Inst.
M1  - FZJ-2015-05370
SP  - 875-879
PY  - 2015
AB  - 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
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000349435900015
UR  - https://juser.fz-juelich.de/record/203434
ER  -