Modeling Methane Emission from Rice Paddy Soils：I.Model Development土壤圈：英文版论文
【题名】：Modeling Methane Emission from Rice Paddy Soils：I.Model Development土壤圈：英文版论文(Modeling Methane Emission from Rice Paddy Soils：I.Model DevelopmentTuRangQuan：YingWenBanLunWen) 【关键词】：水稻土 甲烷排放量 温室气体 数学模型 【keywords】：ShuiDaoTu JiaWanPaiFangLiang WenShiQiTi ShuXueMoXing 【作者】：HUANGYAO,R．L．SASS,等      【来源】： 知识词典 【期刊名称】：土壤圈：英文版(TuRangQuan：YingWenBan) 【国际标准刊号】：1002-0160        【国内统一刊号】：32-1315 【作者单位】：[1]CollegeofResourcesandEnvirontnentalSciences,NanjingAgriculturalUniversity,Nanjing210095,China [2]Departm([1]CollegeofResourcesandEnvirontnentalSciences,NanjingAgriculturalUniversity,Nanjing210095,China [2]Departm) 【分类号】：X16 X144      【页码】：-1-10      【出版年】：1999.1         With an understanding of the processes of methane production,oxidation and emission,a semi-empirical model,focused on the contributions of rice plants to the processes and also the influence of environmental factors,was developed to predict methane emission from rice paddy soils.In the present model,the amount of methane transported from the soil to the atmosphere was determined by the rates of CH4 production and an emitted fraction.The rates of CH4 production in irrgated rice soils were computed from the availability of methanogenic substrates that are primarily derived from rice plants and added organic matter and the influence of soil texture.soil redox potential and temperature,The fraction of methane emitted was assumed to be modulated by the rice plants and declines with rice growth and development.To make it applicable to a wider area with limited data sets.a simplified version of the model was also derived to predict methane emission in a more practical manner.
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