稻田甲烷排放量估算和减缓技术选择
Estimation of Dethane emission from China’s rice fields andmitigation options
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摘要: 根据中国不同生态类型地区的稻田甲烷排放通量,估算了中国稻田甲烷排放总量。结果表明,1990年中国稻田甲烷排放总量为11.335Tg。提出了一些减缓稻田甲烷排放措施,包括:(1)使用稻田甲烷抑制剂;(2)肥料管理;(3)水分管理;(4)筛选低排放率、高产的水稻品种。Abstract: Based the fluxes of methane emissions fromtypical rice,this paper reports the estimation of methane e-missions from China ’s rice fields. The result shows that theoverall methane emissions from paddies were 11.335 Tg in 1990, The mitigation options,recommended for reducingmethane emissions include(1) application of methane in-hibitors in rice field;(2)nutrient management;(3)watermanagement;(4)select rice varieties with lowemission ratesand high productivity.