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

doi:10.1007/s11629-020-6088-1

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Simultaneous quantification of greenhouse gas and nitric oxide emissions from subtropical conventional vegetable systems: a 2-site field case study in Sichuan Basin
	Zhang, Bo-wen 1,2; Zhou, Ming-hua 1; Zhu, Bo 1
刊名	JOURNAL OF MOUNTAIN SCIENCE
	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
DOI	10.1007/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
出版者	SCIENCE PRESS
WOS记录号	WOS:000619903900003
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
内容类型	期刊论文
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.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, 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.