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Simultaneous quantification of greenhouse gas and nitric oxide emissions from subtropical conventional vegetable systems: a 2-site field case study in Sichuan Basin

文献类型：期刊论文

作者Zhang, Bo-wen1,2; Zhou, Ming-hua2; Zhu, Bo2
刊名JOURNAL OF MOUNTAIN SCIENCE
出版日期2021-02-20
页码12
关键词Subtropical vegetable system Nitrous oxide Nitric oxide Methane Emission factor Background emissions
ISSN号1672-6316
DOI10.1007/s11629-020-6088-1
通讯作者Zhou, Ming-hua(mhuazhou@imde.ac.cn)
英文摘要Quantification of greenhouse gases [nitrous oxide (N2O) and methane (CH4)] and nitric oxide (NO) emissions from subtropical conventional vegetable systems through multi-site field measurements are needed to obtain accurate regional and global estimates. N2O, NO and CH4 emissions from subtropical conventional vegetable systems were simultaneously measured at two different sites with hilly topography in the Sichuan basin, southwest China by using the static chamber gas chromatography technique. Results showed that annual soil N2O and NO fluxes for the treatment receiving N fertilizer ranged from 6.34-7.71 kg N ha(-1) yr(-1) and 0.69-0.85 kg N ha(-1) yr(-1), respectively, while decreased soil CH4 uptakes by 26.4% as compared with no N fertilizer addition across our two sites of experiment. Overall, the average direct N2O and NO emission factor (EFd) were 0.71% and 0.12%, respectively, which were both lower than the available EFd for subtropical conventional vegetable systems. This finding indicates that current regional and global estimates of N2O and NO emissions from vegetable fields are likely overestimated. Background N2O emissions (3.42-3.62 kg N ha(-1) yr(-1)) from the subtropical conventional vegetable systems were relatively high as compared with available field measurements worldwide, suggesting that background N2O emissions cannot be ignored for regional estimate of N2O emissions in subtropical region. Nevertheless, the significantly intra- and inter-annual variations in N2O, CH4 and NO emissions were also observed in the present study, which could be explained by temporal variations of environmental variables (i.e. soil temperature and moisture). The differences in N2O and NO EFd and CH4 emissions between various vegetable systems in particular under subtropical conditions should be taken into account when compiling regional or global inventories and proposing mitigation practices.
资助项目Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07101001] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23090403] ; National Key Research and Development Program[2019YFD1100503]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000619903900003
出版者SCIENCE PRESS
资助机构Major Science and Technology Program for Water Pollution Control and Treatment ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program
源URL[http://ir.imde.ac.cn/handle/131551/55972]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者Zhou, Ming-hua
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Bo-wen,Zhou, Ming-hua,Zhu, Bo. Simultaneous quantification of greenhouse gas and nitric oxide emissions from subtropical conventional vegetable systems: a 2-site field case study in Sichuan Basin[J]. JOURNAL OF MOUNTAIN SCIENCE,2021:12.
APA Zhang, Bo-wen,Zhou, Ming-hua,&Zhu, Bo.(2021).Simultaneous quantification of greenhouse gas and nitric oxide emissions from subtropical conventional vegetable systems: a 2-site field case study in Sichuan Basin.JOURNAL OF MOUNTAIN SCIENCE,12.
MLA Zhang, Bo-wen,et al."Simultaneous quantification of greenhouse gas and nitric oxide emissions from subtropical conventional vegetable systems: a 2-site field case study in Sichuan Basin".JOURNAL OF MOUNTAIN SCIENCE (2021):12.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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