论文部分内容阅读
主要介绍了近 2 0年来稻田甲烷排放的模式研究和排放量的估算以及减少稻田甲烷排放的措施。数值模式是估算稻田甲烷排放量的一条有效途径 ,模式的研究现在正处于发展阶段。介绍了几个主要的模型 ,既有物理过程模型也有经验模型。年排放量的估算范围为 6 79～ 4 1 4Tg ,随着技术的发展和大量实验的进行估算值的精度正得到不断的提高。减排措施是减少稻田甲烷排放的必要手段 ,但是目前的减排技术均处于研究阶段 ,应用还不成熟
It mainly introduces the mode research and emission estimation of methane emission from paddy field in recent 20 years and measures to reduce methane emission in paddy field. The numerical model is an effective way to estimate the methane emission in paddy fields. The research on the model is now in the development stage. Introduced several major models, both the physical process model and empirical model. Annual emissions are estimated to range from 679 to 4144Tg. As the technology progresses and the accuracy of estimates from a large number of experiments is being continuously improved. Emission reduction measures are necessary measures to reduce methane emissions from paddy fields. However, current emission reduction technologies are still at the research stage and their applications are not yet mature