y Nitrous oxide emissions from different land uses affected by managements on the Qinghai-Tibetan Plateau

doi:10.1016/j.agrformet.2017.06.013

	y Nitrous oxide emissions from different land uses affected by managements on the Qinghai-Tibetan Plateau
	Wilkes, Andreas 1; He, Jin-Sheng2,8 ; Luo, Caiyun 8; Chang, Xiaofeng 3; Duan, Jichuang 4; Wang, Shiping6,7 ; Zhu, Xiaoxue 5,8; Zhang, Zhenhua8
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2017-11-15
卷号	246 页码:133-141
关键词	Land Use Change Nitrogen Fertilization Conventional Tillage Nitrous Oxide Emissions
ISSN号	0168-1923
DOI	10.1016/j.agrformet.2017.06.013
文献子类	Article
英文摘要	We evaluated the N2O emissions from four land use types (a native alpine meadow with winter grazing (NAM), an abandoned pasture (APL), a perennial Elymus nutans Griseb. pasture (PEN) and an annual Avena saliva L. pasture (AAS)) with and without three management practices (nitrogen (N) fertilizer, sheep manure and no tillage (NT)) in a Gelic Cambisol soil underlying an alpine meadow on the Qinghai-Tibetan Plateau in 2009 and 2010. Our results show that, compared with NAM, APL had significantly higher cumulative-average seasonal N2O emissions. Converting unmanaged APL to PEN or AAS significantly increased cumulative-average seasonal N2O emissions by 35% and 75%, respectively. Sheep manure and N fertilizer application significantly increased N2O emissions due to increased soil inorganic N concentration. The effect of sheep manure addition on N2O emissions was lower than that of N fertilizer. For AAS, tillage significantly decreased the effect of sheep manure application on N2O emissions. Compared with tillage, NT significantly decreased N2O emissions from AAS. Therefore, our results suggest that cultivating natural grassland would increase N2O emissions, and fertilizer application would amplify the magnitude of emissions, whereas NT could mitigate the fertilizer impact on N2O emission. Furthermore, the structural equation analysis revealed that land use change affected N2O emissions directly by influencing the number of plant species and soil characteristics. There were two different underlying mechanisms regulating N2O emissions in response to N fertilizer and sheep manure addition.
WOS关键词	GREENHOUSE-GAS EMISSIONS ; ALPINE MEADOW ; N2O EMISSIONS ; TILLAGE SYSTEMS ; CARBON-DIOXIDE ; NO-TILL ; SOIL ; GRASSLAND ; ECOSYSTEM ; CLIMATE
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000408782000013
资助机构	National Key RD Program(2016YFC0501802) ; National Basic Research Program(2013CB956000 ; National Science Foundation for Young Scientists(31300415) ; 2014CB954003)
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/9800]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
通讯作者	Wang, Shiping
作者单位	1.Dev Ltd, Bury St Edmunds IP33 3EQ, Suffolk, England 2.Peking Univ, Dept Ecol, Yi Fu Bldg 2,5 Yiheyuan Rd, Beijing 100871, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 4.Binhai Res Inst Tianjin, Tianjin 300457, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 7.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China 8.Chinese Acad Sci, Northwest Inst Plateau Biol, Haibei Alpine Grassland Ecosyst Res Stn, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Wilkes, Andreas,He, Jin-Sheng,Luo, Caiyun,et al. y Nitrous oxide emissions from different land uses affected by managements on the Qinghai-Tibetan Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2017,246:133-141.
APA	Wilkes, Andreas.,He, Jin-Sheng.,Luo, Caiyun.,Chang, Xiaofeng.,Duan, Jichuang.,...&Zhang, Zhenhua.(2017).y Nitrous oxide emissions from different land uses affected by managements on the Qinghai-Tibetan Plateau.AGRICULTURAL AND FOREST METEOROLOGY,246,133-141.
MLA	Wilkes, Andreas,et al."y Nitrous oxide emissions from different land uses affected by managements on the Qinghai-Tibetan Plateau".AGRICULTURAL AND FOREST METEOROLOGY 246(2017):133-141.