Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B2, 753-760, 2016
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B2/753/2016/
doi:10.5194/isprs-archives-XLI-B2-753-2016
 
12 Oct 2016
GHG AND AEROSOL EMISSION FROM FIRE PIXEL DURING CROP RESIDUE BURNING UNDER RICE AND WHEAT CROPPING SYSTEMS IN NORTH-WEST INDIA
Prasenjit Acharya1, S. Sreekesh1, and Umesh Kulshrestha2 1CSRD, School of Social Science, Jawaharlal Nehru University, 110067 New Delhi, India
2School of Environmental Science, Jawaharlal Nehru University, 110067 New Delhi, India
Keywords: Modelling, GHG emission, EVI, Fourier transformation, MODIS Abstract. Emission of smoke and aerosol from open field burning of crop residue is a long-standing subject matter of atmospheric pollution. In this study, we proposed a new approach of estimating fuel load in the fire pixels and corresponding emissions of selected GHGs and aerosols i.e. CO2, CO, NO2, SO2, and total particulate matter (TPM) due to burning of crop residue under rice and wheat cropping systems in Punjab in north-west India from 2002 to 2012. In contrasts to the conventional method that uses RPR ratio to estimate the biomass, fuel load in the fire pixels was estimated as a function of enhanced vegetation index (EVI). MODIS fire products were used to detect the fire pixels during harvesting seasons of rice and wheat. Based on the field measurements, fuel load in the fire pixels were modelled as a function of average EVI using second order polynomial regression. Average EVI for rice and wheat crops that were extracted through Fourier transformation were computed from MODIS time series 16 day EVI composites. About 23 % of net shown area (NSA) during rice and 11 % during wheat harvesting seasons are affected by field burning. The computed average fuel loads are 11.32 t/ha (±17.4) during rice and 10.89 t/ha (±8.7) during wheat harvesting seasons. Calculated average total emissions of CO2, CO, NO2, SO2 and TPM were 8108.41, 657.85, 8.10, 4.10, and 133.21 Gg during rice straw burning and 6896.85, 625.09, 1.42, 1.77, and 57.55 Gg during wheat burning. Comparison of estimated values shows better agreement with the previous concurrent estimations. The method, however, shows its efficiency parallel to the conventional method of estimation of fuel load and related pollutant emissions.
Conference paper (PDF, 1640 KB)


Citation: Acharya, P., Sreekesh, S., and Kulshrestha, U.: GHG AND AEROSOL EMISSION FROM FIRE PIXEL DURING CROP RESIDUE BURNING UNDER RICE AND WHEAT CROPPING SYSTEMS IN NORTH-WEST INDIA, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B2, 753-760, doi:10.5194/isprs-archives-XLI-B2-753-2016, 2016.

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