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Water management impacts both methane (CH4) and nitrous oxide (N2O) emissions from rice paddy fields. Although irrigation is one of the most important methods for reducing CH4 emission in rice production systems it can also N2O emissions and reduce crop yields. A feasibility study on the system of rice intensification (SRI) methods with respect to irrigation requirements, greenhouse gas (GHG) emissions was conducted for either 2 or 3 years depending on the treatment in Korea. The SRI methods (i.e. SRI and midsummer drainage (MD) with conventional practice (CT)) reduced the irrigation requirement by 49.0 and 22.0 %, respectively. Global warming contribution of GHG to different depending on the type of GHG. Therefore, the emission of CH4 and N2O shall be converted to Global Warming Potential (GWP). The GHG emission from the conventional practice with midsummer drainage (MD) and the SRI plots, in GWP were reduced by 49.1 and 77.1 %, respectively. Application of SRI water management method could help to improve Korea’s water resources and could thus contribute to mitigation of the negative effects of global warming.
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참고문헌 (41)
참고문헌 신청
Amir Kassam / 2011 / Review of SRI modifications in rice crop and water management and research issues for making further improvements in agricultural and water productivity / Paddy and Water Environment 9(1):163~180
Bachelet, D. / 1993 / Methane emissions from wetland rice areas of asia / Chemosphere 26:219~237
Cai, Z. / 1999 / Measurements of $CH_4$ and $N_2O$ emissions from rice paddies in fengqiu, China / Soil Science. Plant Nutri. 45(1):1~13
Choi, J. D. / 2013 / Feasibility of SRI methods for reduction of irrigation and NPS pollution in Korea / Paddy Water Environment 11:241~248
Minami, K. / 1993 / Methane from Rice prodution / Res. Rep. Div. Environment Planning 9:243~258
Bachelet, D. / 1993 / Methane emissions from wetland rice areas of asia / Chemosphere 26:219~237
Cai, Z. / 1999 / Measurements of
Choi, J. D. / 2013 / Feasibility of SRI methods for reduction of irrigation and NPS pollution in Korea / Paddy Water Environment 11:241~248
Minami, K. / 1993 / Methane from Rice prodution / Res. Rep. Div. Environment Planning 9:243~258
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