Biochar amendment reduces paddy soil nitrogen leaching but increases net global warming potential in Ningxia irrigation, China

doi:10.1038/s41598-017-01173-w

	Biochar amendment reduces paddy soil nitrogen leaching but increases net global warming potential in Ningxia irrigation, China
	Wang, Yongsheng 1; Liu, Yansui 1; Liu, Ruliang 2; Zhang, Aiping 3,4; Yang, Shiqi 3; Liu, Hongyuan 3; Zhou, Yang 1; Yang, Zhengli 3
刊名	SCIENTIFIC REPORTS
	2017-05-09
卷号	7 页码:10
ISSN号	2045-2322
DOI	10.1038/s41598-017-01173-w
通讯作者	Zhang, Aiping(apzhang0601@126.com)
英文摘要	The efficacy of biochar as an environmentally friendly agent for non-point source and climate change mitigation remains uncertain. Our goal was to test the impact of biochar amendment on paddy rice nitrogen (N) uptake, soil N leaching, and soil CH4 and N2O fluxes in northwest China. Biochar was applied at four rates (0, 4.5, 9 and 13.5 t ha(-1) yr(-1)). Biochar amendment significantly increased rice N uptake, soil total N concentration and the abundance of soil ammonia-oxidizing archaea (AOA), but it significantly reduced the soil NO3--N concentration and soil bulk density. Biochar significantly reduced NO3--N and NH4+-N leaching. The C2 and C3 treatments significantly increased the soil CH4 flux and reduced the soil N2O flux, leading to significantly increased net global warming potential (GWP). Soil NO3--N rather than NH4+-N was the key integrator of the soil CH4 and N2O fluxes. Our results indicate that a shift in abundance of the AOA community and increased rice N uptake are closely linked to the reduced soil NO3--N concentration under biochar amendment. Furthermore, soil NO3--N availability plays an important role in regulating soil inorganic N leaching and net GWP in rice paddies in northwest China.
资助项目	National Water Pollution and Treatment Science and Technology Major Project[201ZX07201-009] ; National Natural Science Foundation of China[41130748] ; National Natural Science Foundation of China[31660957] ; National Natural Science Foundation of China[41471143] ; Special Foundation for Basic Scientific Research of Central Public Welfare Institute[BSRF201306] ; Priority Funds for Ningxia Scientific and Technological Innovation[NKYJ-15-05]
WOS关键词	N2O EMISSIONS ; ENVIRONMENTAL IMPACTS ; FOREST SOILS ; METHANE ; RICE ; CHARCOAL ; FIELD ; METAANALYSIS ; INCUBATION ; EFFICIENCY
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000400869900001
资助机构	National Water Pollution and Treatment Science and Technology Major Project ; National Natural Science Foundation of China ; Special Foundation for Basic Scientific Research of Central Public Welfare Institute ; Priority Funds for Ningxia Scientific and Technological Innovation
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/64516]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Aiping
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China 2.Ningxia Acad Agr & Forestry Sci, Yinchuan 750000, Peoples R China 3.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Agroenvironm & Climate Change, China Minist Agr, Beijing 10081, Peoples R China 4.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, 12 Zhongguancun South St, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yongsheng,Liu, Yansui,Liu, Ruliang,et al. Biochar amendment reduces paddy soil nitrogen leaching but increases net global warming potential in Ningxia irrigation, China[J]. SCIENTIFIC REPORTS,2017,7:10.
APA	Wang, Yongsheng.,Liu, Yansui.,Liu, Ruliang.,Zhang, Aiping.,Yang, Shiqi.,...&Yang, Zhengli.(2017).Biochar amendment reduces paddy soil nitrogen leaching but increases net global warming potential in Ningxia irrigation, China.SCIENTIFIC REPORTS,7,10.
MLA	Wang, Yongsheng,et al."Biochar amendment reduces paddy soil nitrogen leaching but increases net global warming potential in Ningxia irrigation, China".SCIENTIFIC REPORTS 7(2017):10.