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上海市稻田甲烷排放区域模拟研究

Simulation of Methane Emission from Paddy Fields in Shanghai
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摘要 该研究采用CH4MOD模型模拟了上海全市及各个区域不同水稻种植类型下的稻田甲烷排放,模拟结果显示:2011年,上海市稻田甲烷排放因子为277.15 kg/(hm^2·a),模拟结果得到的区域稻田甲烷排放因子与前人点位研究结果具有一致性;稻田甲烷排放量为2.94万t CH4,折合61.75万t CO2当量。按种植类型来分,"水稻+冬"二麦种植类型是最主要的排放源,其次为"水稻+绿肥"种植类型,两者排放占稻田甲烷排放总量的95%以上。按区域分布来看,崇明区、金山区以及市郊农场是最主要的排放源,三者占全市稻田排放总量的54.25%。 Methane emission from the paddy fields in different regions with various planting types in Shanghai was simulat-ed using the CH4MOD model. The simulation study showed that the methane emission factor of paddy fields is 277.15 kg(hm^2·a) in 2011, which was consistent with the results of previous studies, and the total methane emission from paddy field amounted to 29.4 thousand tons of CH4, equivalent to 617.5 thousand tons of CO2. In terms of the planting types, the ‘rice+winter wheat'planting type was the main source of methane emissions, followed by ‘rice + green manure'planting types,both of which accounted for more than 95% of the total methane emission from paddy fields. Regionally, Chongming District,Jinshan District and farms in the suburban area were the three major sources of emissions, accounting for 54.25 % of total emissions from paddy fields in Shanghai.
作者 戴洁 DAI Jie (Low Carbon Economy Research Center, Shanghai Academy of Environmental Science, Shanghai 200233, China)
出处 《环境科学与技术》 CSCD 北大核心 2017年第11期75-80,共6页 Environmental Science and Technology
基金 上海市环保科研项目:上海市典型农业温室气体排放特征模拟及减排措施研究(沪环科(2013-78)) 上海市发展与改革委员会节能降耗与应对气候变化资金基础工作及能力建设支持项目:上海市2011-2012年温室气体清单编制(13-10952-001)
关键词 CH4MOD 稻田 甲烷 温室气体 上海 CH4MOD paddy field methane greenhouse gas Shanghai
作者简介 戴洁(1986年-),女,工程师,硕士,从事低碳经济和环境管理研究,(电话)021—64085119(电子信箱)ronadj@163.com。
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