中国生态农业学报2018，Vol.26Issue(2)：175-181,7.DOI:10.13930/j.cnki.cjea.171155
水稻植株特性对稻田甲烷排放的影响及其机制的研究进展
The effect of rice plant traits on methane emissions from paddy fields: A review
摘要
Abstract
Rice is the most important stable food in China and rice paddies constitute a major source of methane (CH4) emis-sion. Rice plant traits not only play an important role in rice yield, but also significantly affect CH4emission from paddy fields. However, there have been wide gaps in the understanding of the effects of rice plant traits on CH4emissions from paddy fields.Thus research status and progress on the impact of rice plant on CH4emissions were reviewed in terms of plant morphological and physiological characteristics (especially photosynthetic characteristics), plant-environment interactions, etc. The effects of aboveground plant traits (e.g. tiller, plant height and leaf area) on CH4emissions from paddy fields have remained inconclu-sive. The belowground system plays a key role in CH4emission. Optimizing photosynthate allocation can reduce CH4emission in continuously flooded paddy fields. High biomass rice plants can increase CH4emission in low C paddy soils, but reduce CH4emission in high C paddy soils. Based on the summary of the effects and the underlying mechanisms reported in existing studies, further efforts were needed, such as assessment of the effects of root morphological and physiological characteristics and plant-environment interactions on CH4production, oxidation and emission. There was also the need to pay more attention on the underlying mechanisms that combines microcosmic and field experiments and other new research methods. Meanwhile, the interaction and underlying mechanisms of carbon and nitrogen in plant-soil systems needed further exploration in future studies. A good understanding of the impact of rice plants on CH4emissions can provide the theoretical basis for rice cultivar breeding and innovative rice cropping with less greenhouse gas emissions and high yields.关键词
温室气体排放/甲烷/稻田/水稻植株特性/植株-环境互作/碳排放/粮食安全Key words
Greenhouse gas emission/Methane/Paddy field/Rice plant traits/Plant-environment interaction/Carbon emis-sion/Food security分类
资源环境引用本文复制引用
江瑜,管大海,张卫建..水稻植株特性对稻田甲烷排放的影响及其机制的研究进展[J].中国生态农业学报,2018,26(2):175-181,7.基金项目
国家"十三五"重点研发计划项目(2016YFD0300903)资助This study was supported by the National Key Research and Development Project of China(2016YFD0300903). （2016YFD0300903）
