globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13737
论文题名:
Higher yields and lower methane emissions with new rice cultivars
作者: Jiang Y.; van Groenigen K.J.; Huang S.; Hungate B.A.; van Kessel C.; Hu S.; Zhang J.; Wu L.; Yan X.; Wang L.; Chen J.; Hang X.; Zhang Y.; Horwath W.R.; Ye R.; Linquist B.A.; Song Z.; Zheng C.; Deng A.; Zhang W.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
语种: 英语
英文关键词: Meta-analysis ; Methanogenesis ; Methanotrophy ; Roots ; Soil carbon
英文摘要: Breeding high-yielding rice cultivars through increasing biomass is a key strategy to meet rising global food demands. Yet, increasing rice growth can stimulate methane (CH4) emissions, exacerbating global climate change, as rice cultivation is a major source of this powerful greenhouse gas. Here, we show in a series of experiments that high-yielding rice cultivars actually reduce CH4 emissions from typical paddy soils. Averaged across 33 rice cultivars, a biomass increase of 10% resulted in a 10.3% decrease in CH4 emissions in a soil with a high carbon (C) content. Compared to a low-yielding cultivar, a high-yielding cultivar significantly increased root porosity and the abundance of methane-consuming microorganisms, suggesting that the larger and more porous root systems of high-yielding cultivars facilitated CH4 oxidation by promoting O2 transport to soils. Our results were further supported by a meta-analysis, showing that high-yielding rice cultivars strongly decrease CH4 emissions from paddy soils with high organic C contents. Based on our results, increasing rice biomass by 10% could reduce annual CH4 emissions from Chinese rice agriculture by 7.1%. Our findings suggest that modern rice breeding strategies for high-yielding cultivars can substantially mitigate paddy CH4 emission in China and other rice growing regions. © 2017 John Wiley & Sons Ltd.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61129
Appears in Collections:影响、适应和脆弱性

Files in This Item:

There are no files associated with this item.


作者单位: Institute of Applied Ecology Nanjing Agricultural University Nanjing China; Institute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology Ministry of Agriculture Beijing China; Geography, College of Life and Environmental Sciences University of Exeter Exeter UK; Department of Plant Sciences University of California Davis, CA USA; Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding Jiangxi Agricultural University Nanchang China; Center for Ecosystem Science and Society Northern Arizona University Flagstaff, AZ USA; Department of Plant Pathology North Carolina State University Raleigh, NC USA; Sustainable Soils and Grassland Systems Department Rothamsted Research Okehampton UK; Soil and Fertilizer and Resources and Environmental Institute Jiangxi Academy of Agricultural Science Nanchang China; Institute of Agricultural Resources and Environment Chongqing Academy of Agricultural Science Chongqing China; Department of Land, Air and Water Resources University of California Davis, CA USA; Plant and Environmental Sciences Clemson University Clemson, SC USA

Recommended Citation:
Jiang Y.,van Groenigen K.J.,Huang S.,et al. Higher yields and lower methane emissions with new rice cultivars[J]. Global Change Biology,2017-01-01
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Jiang Y.]'s Articles
[van Groenigen K.J.]'s Articles
[Huang S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Jiang Y.]'s Articles
[van Groenigen K.J.]'s Articles
[Huang S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Jiang Y.]‘s Articles
[van Groenigen K.J.]‘s Articles
[Huang S.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.