DNDC를 이용한 논의 온실가스 배출량 모의
Simulation of GHG Emission from Paddy Field using DNDC Model
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참고문헌
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초록
This study was conducted to predict greenhouse gas (GHG) emission from paddy by future climate change scenario in Korea. Chuncheon city in Kangwon province were selected as study area. A1B Special Report on Emission Scenario (SRES) of the IPCC(Intergovernmental panel on climate change) was used to assess the future potential climate change. The rainfall and temperature wasprojected to increase by 8.4 % and 1.9 % (2040s), 35.9 % and 27.0 % (2060s), 19.2 % and 30.8 % (2090s), respectively, compareto the 2010s value. Under the climate change, Denitrification-Decomposition (DNDC) predicted an increase in N2O, CO2 and CH4emissions from paddy. The simulations resulted in annual net emissions of 0.4～2.4, 500.5～734.5 and 29.4～160.4 kg/ha/year ofN2O-N, CH4-C and CO2-C, respectively, with a cumulated global warming potential (GWP) of 14.5～21.7 t ․ CO2/ha/year were affectedby rainfall, temperature, manure amendment and fertilizer amount. The simulation results suggested that implementation of manureamendment or reduction of water consumption instead of increased fertilizer application rates would more efficiently mitigate GHGemissions.
Abstract
This study was conducted to predict greenhouse gas (GHG) emission from paddy by future climate change scenario in Korea. Chuncheon city in Kangwon province were selected as study area. A1B Special Report on Emission Scenario (SRES) of the IPCC(Intergovernmental panel on climate change) was used to assess the future potential climate change. The rainfall and temperature wasprojected to increase by 8.4 % and 1.9 % (2040s), 35.9 % and 27.0 % (2060s), 19.2 % and 30.8 % (2090s), respectively, compareto the 2010s value. Under the climate change, Denitrification-Decomposition (DNDC) predicted an increase in N2O, CO2 and CH4emissions from paddy. The simulations resulted in annual net emissions of 0.4～2.4, 500.5～734.5 and 29.4～160.4 kg/ha/year ofN2O-N, CH4-C and CO2-C, respectively, with a cumulated global warming potential (GWP) of 14.5～21.7 t ․ CO2/ha/year were affectedby rainfall, temperature, manure amendment and fertilizer amount. The simulation results suggested that implementation of manureamendment or reduction of water consumption instead of increased fertilizer application rates would more efficiently mitigate GHGemissions.
참고문헌 (24)
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