Biochar promotes methane production at high acetate concentrations in anaerobic soils

doi:10.1007/s10311-019-00863-3

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室 > 海岸带生物学与生物资源利用所重点实验室

	Biochar promotes methane production at high acetate concentrations in anaerobic soils
	Xiao, LL ; Liu, FH ; Xu, HD ; Feng, DW ; Liu, JC ; Han, GX
刊名	ENVIRONMENTAL CHEMISTRY LETTERS
	2019-09
卷号	17 期号:3 页码:1347-1352
关键词	Anaerobic soil Biochar Acetate concentration CH4 production Acetoclastic methanogenesis Methanosarcinaceae
ISSN号	1610-3653
DOI	10.1007/s10311-019-00863-3
产权排序	[Xiao, Leilei ; Liu, Fanghua ; Xu, Hengduo ; Feng, Dawei ; Liu, Jinchao] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, 17 Chunhui Rd, Yantai 264003, Shandong, Peoples R China ; [Liu, Fanghua] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China ; [Han, Guangxuan] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
文献子类	Article
英文摘要	Methane (CH4) is a major greenhouse gas emitted by the industry, agriculture and natural processes such as degradation of organic matter in anaerobic waters and soils. Addition of biochars to soils has been investigated to control greenhouse gas emission, but actually there are still current conflicting views: do biochars promote or suppress greenhouse gas emissions? In particular, the role of acetate, a product of organic matter degradation and substrate of methanogenesis, is poorly known. Here, we studied the effect of acetate concentrations on CH4 production by soils amended with biochar. Results show that biochar decreased CH4 release at low acetate concentration, below 0.2 mM. Gompertz modeling reveals that CH4 production rate can be reduced by up to 26.2% by biochar application. In apparent conflict, results show also that biochar stimulated methanogenesis at higher acetate concentrations, above 2 mM. Moreover, the application of CH3F, an inhibitor of acetoclastic methanogenesis, demonstrated that biochar mildly strengthened acetoclastic methanogenesis, thus confirming that biochar favors methane production. C-13 isotope analysis demonstrated that CH4 is derived from direct acetate cleavage when the methanogenic substrate, e.g., acetate, was relatively abundant. Data from 16S rRNA sequencing suggest that CH4 is produced by the metabolism of Methanosarcinaceae. This work provides extra perspective that promotion or suppression of CH4 release by biochar may depend on acetate concentration in terrestrial methanogenic environments.
WOS关键词	CARBON ; METHANOGENESIS ; EMISSIONS
WOS研究方向	Chemistry, Multidisciplinary ; Engineering, Environmental ; Environmental Sciences
语种	英语
WOS记录号	WOS:000481434000014
资助机构	NSFCNational Natural Science Foundation of China [41703075, 91751112, 41573071] ; Natural Science Foundation of Shandong ProvinceNatural Science Foundation of Shandong Province [JQ201608, ZR2016DQ12] ; Young Taishan Scholars Program [tsqn20161054]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24875]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, 17 Chunhui Rd, Yantai 264003, Shandong, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China; 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Xiao, LL,Liu, FH,Xu, HD,et al. Biochar promotes methane production at high acetate concentrations in anaerobic soils[J]. ENVIRONMENTAL CHEMISTRY LETTERS,2019,17(3):1347-1352.
APA	Xiao, LL,Liu, FH,Xu, HD,Feng, DW,Liu, JC,&Han, GX.(2019).Biochar promotes methane production at high acetate concentrations in anaerobic soils.ENVIRONMENTAL CHEMISTRY LETTERS,17(3),1347-1352.
MLA	Xiao, LL,et al."Biochar promotes methane production at high acetate concentrations in anaerobic soils".ENVIRONMENTAL CHEMISTRY LETTERS 17.3(2019):1347-1352.