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Paddy rice methane emissions, controlling factors, and mitigation potentials across Monsoon Asia

文献类型：期刊论文

作者Zhou, Hong1,2; Tao, Fulu1,2; Chen, Yi1,2; Yin, Lichang1,2; Li, Yibo1,2; Wang, Yicheng1,2; Su, Chenfang1,2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2024-07-20
卷号935页码:173441
关键词Paddy rice Methane emissions Mitigation Machine learning
DOI10.1016/j.scitotenv.2024.173441
产权排序1
文献子类Article
英文摘要Rice is a staple food for more than half of humanity, and 90 % of rice is grown and consumed in Asia. However, paddy rice cultivation creates an ideal environment for the production and release of methane (CH4). How to estimate regional CH4 emissions accurately and how to mitigate them efficiently have been of key concern. Here, with a machine learning method, we investigate the spatiotemporal changes, the major controlling factors and mitigation potentials of paddy rice CH4 emissions across Monsoon Asia at a resolution of 0.1 degrees (similar to 10 km). Spatially CH4 emissions are highly heterogeneous, with the Indo-Gangetic Plain, Deltas of the Mekong, and Yangtze River Basin as the hotspots. Nationwide, China, India, Bangladesh and Vietnam are the major emitters. Straw applied on season is a critical controlling factor for CH4 emission in rice fields. The single-season rice contributes to over 80 % of the total emissions. CH4 emissions from Monsoon Asia have notably declined since 2007. Three mitigation strategies, including water management techniques, off-season straw return, and straw to biochar, may reduce CH4 emissions by 27.66 %, 23.78 %, and 21.79 %, respectively, with the most effective strategy being rice cultivation type-specific and environment-specific. Our findings gain new insights into CH4 emissions and mitigations across Monsoon Asia, providing evidence to adopt precise mitigation strategies based on rice cultivation types and local environment.
WOS关键词NITROUS-OXIDE EMISSIONS ; WATER ; MANAGEMENT ; OXIDATION ; FIELDS ; CHINA
WOS研究方向Environmental Sciences & Ecology
WOS记录号WOS:001246312500001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/205282]  
专题陆地表层格局与模拟院重点实验室_外文论文
通讯作者Tao, Fulu
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Hong,Tao, Fulu,Chen, Yi,et al. Paddy rice methane emissions, controlling factors, and mitigation potentials across Monsoon Asia[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,935:173441.
APA Zhou, Hong.,Tao, Fulu.,Chen, Yi.,Yin, Lichang.,Li, Yibo.,...&Su, Chenfang.(2024).Paddy rice methane emissions, controlling factors, and mitigation potentials across Monsoon Asia.SCIENCE OF THE TOTAL ENVIRONMENT,935,173441.
MLA Zhou, Hong,et al."Paddy rice methane emissions, controlling factors, and mitigation potentials across Monsoon Asia".SCIENCE OF THE TOTAL ENVIRONMENT 935(2024):173441.

入库方式： OAI收割

来源：地理科学与资源研究所

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