Effects of domestic sewage from different sources on greenhouse gas emission and related microorganisms in straw-returning paddy fields

doi:10.1016/j.scitotenv.2020.137407

	Effects of domestic sewage from different sources on greenhouse gas emission and related microorganisms in straw-returning paddy fields
	Li, Mengyao 1,2; Xue, Lihong 1,3; Zhou, Beibei 4; Duan, Jingjing 1; He, Zhu 1; Wang, Xugang 2; Xu, Xiaofeng 2; Yang, Linzhang 1
	2020-05-20
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	718
摘要	Reusing domestic sewage for crop irrigation is a promising practice, particularly in developing countries, since it is a substitute for chemical fertilizer and reduces water contamination. More attention was paid to the effect of sewage irrigation on crop yield and soil nutrients, but little attention was paid to greenhouse gas (GHG) emission from straw-returning paddy fields. In this study, a soil column monitoring experiment was conducted to assess the effects of untreated domestic sewage (dominated with ammonia) and treated domestic sewage (dominated with nitrate) irrigation on methane (CH4), nitrous oxide (N2O) emission, and related soil microorganisms in straw-returning paddy fields. Results showed that straw-returning dramatically promoted CH4 emission but had little effect on N2O emission. Both untreated and treated domestic sewage irrigation decreased CH(4 )emission of straw-returning paddy whether nitrogen fertilizer applied or not. The mitigating effect of treated sewage irrigation on CH4 emission was greater than untreated sewage irrigation. CH4 emission had a significant correlation with the abundance of soil methanogens and methanogens/methanotrophs. N2O emission increased with untreated or treated domestic sewage irrigation, although the total N input. induding the N carried by sewage water, was the same for all treatments. No significant correlation between N2O and denitrification functional genes was found in this study. Treated domestic sewage irrigation reduced the global warming potential (GWP) by 66.7%, but untreated domestic sewage had no evident influence on the GWP. Results indicated that treated domestic sewage irrigation could significantly inhibit CH4 emission and the GWP by decreasing the ratio of methanogens to methanotrophs, and is promising in mitigating GWP from straw-returned paddy fields. (C) 2020 Elsevier B.V. All rights reserved.
关键词	Sewage irrigation TREATED WASTE-WATER Straw-returning NITROUS-OXIDE EMISSIONS Methane (CH4) METHANE EMISSIONS Nitrous oxide (N2O) FERTILIZER APPLICATION Soil microorganism MICROBIAL COMMUNITY AGRICULTURAL REUSE N2O EMISSIONS FRESH-WATER SOIL IRRIGATION
DOI	10.1016/j.scitotenv.2020.137407
收录类别	SCIE
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000526029000043
出版者	ELSEVIER
原始文献类型	Article
EISSN	1879-1026
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.library.ouchn.edu.cn/handle/39V7QQFX/168427
专题	国家开放大学江苏分部
通讯作者	Xue, Lihong
作者单位	1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Agroenvironm Downstream Yangtze Plain, Minist Agr & Rural Affairs, Nanjing 210014, Peoples R China; 2.Henan Univ Sci & Technol, Sch Agr, Luoyang 471023, Peoples R China; 3.Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212001, Jiangsu, Peoples R China; 4.Jiangsu Open Univ, Coll Environm & Ecol, Nanjing 210017, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Mengyao,Xue, Lihong,Zhou, Beibei,et al. Effects of domestic sewage from different sources on greenhouse gas emission and related microorganisms in straw-returning paddy fields[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,718.
APA	Li, Mengyao.,Xue, Lihong.,Zhou, Beibei.,Duan, Jingjing.,He, Zhu.,...&Yang, Linzhang.(2020).Effects of domestic sewage from different sources on greenhouse gas emission and related microorganisms in straw-returning paddy fields.SCIENCE OF THE TOTAL ENVIRONMENT,718.
MLA	Li, Mengyao,et al."Effects of domestic sewage from different sources on greenhouse gas emission and related microorganisms in straw-returning paddy fields".SCIENCE OF THE TOTAL ENVIRONMENT 718(2020).