Response of soil methane uptake to simulated nitrogen deposition and grazing management across three types of steppe in Inner Mongolia, China

doi:10.1016/j.scitotenv.2017.08.236

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Response of soil methane uptake to simulated nitrogen deposition and grazing management across three types of steppe in Inner Mongolia, China
	Li, Xianglan 3; He, Hong 3; Yuan, Wenping 2,4; Li, Linghao 6; Xu, Wenfang 4,5; Liu, Wei 2,6; Shi, Huiqiu 5,6; Hou, Longyu 1; Chen, Jiquan 7; Wang, Zhiping 6
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018
卷号	612 页码:799-808
关键词	CH4 exchange Meadow steppe Typical steppe Desert steppe Inner Mongolia
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2017.08.236
文献子类	Article
英文摘要	The response of soil methane (CH4) uptake to increased nitrogen (N) deposition and grazing management was studied in three types of steppe (i.e., meadow steppe, typical steppe, and desert steppe) in Inner Mongolia, China. The experiment was designed with four simulated N deposition rates such as 0, 50, 100, and 200 kg N ha(-1), respectively, under grazed and fenced management treatments. Results showed that the investigated steppes were significant sinks for CH4, with an uptake flux of 1.12-3.36 kg ha(-1) over the grass growing season and that the magnitude of CH4 uptake significantly (P < 0.05) decreased with increasing N deposition rates. The soil CH4 uptake rates were highest in the desert steppe, moderate in the typical steppe, and lowest in the meadow steppe. Compared with grazed plots, fencing increased the CH4 uptake by 4.7-40.2% with a mean value of 20.2% across the three different steppe types. The responses of soil CH4 uptake to N deposition in the continental steppe varied depending on the N deposition rate, steppe type, and grazing management. A significantly positive correlation between CH4 uptake and soil temperature was found in this study, whereas no significant relationship between soil moisture and CH4 uptake occurred. Our results may contribute to the improvement of model parameterization for simulating biosphere-atmosphere CH4 exchange processes and for evaluating the climate change feedback on CH4 soil uptake. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Environmental Sciences
电子版国际标准刊号	1879-1026
出版地	AMSTERDAM
WOS关键词	GREENHOUSE-GAS FLUXES ; CARBON-DIOXIDE FLUXES ; N2O FLUXES ; ALPINE GRASSLAND ; CONIFEROUS FOREST ; TIBETAN PLATEAU ; GROWING-SEASON ; CATTLE SLURRY ; CH4 ; CO2
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000413313700080
资助机构	National Key Basic Research Program of ChinaNational Basic Research Program of China [2016YFA0602701] ; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities ; State Key Laboratory of Earth Surface Processes and Resource Ecology
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/20441]
专题	植被与环境变化国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Beijing Normal Univ, Joint Ctr Global Change & China Green Dev, Beijing 100875, Peoples R China 3.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China 4.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou 519082, Guangdong, Peoples R China 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 6.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 7.China Agr Univ, Dept Grassland Sci, Beijing 100193, Peoples R China 8.Michigan State Univ, Dept Geog, Coll Social Sci, E Lansing, MI 48824 USA
推荐引用方式 GB/T 7714	Li, Xianglan,He, Hong,Yuan, Wenping,et al. Response of soil methane uptake to simulated nitrogen deposition and grazing management across three types of steppe in Inner Mongolia, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,612:799-808.
APA	Li, Xianglan.,He, Hong.,Yuan, Wenping.,Li, Linghao.,Xu, Wenfang.,...&Wang, Zhiping.(2018).Response of soil methane uptake to simulated nitrogen deposition and grazing management across three types of steppe in Inner Mongolia, China.SCIENCE OF THE TOTAL ENVIRONMENT,612,799-808.
MLA	Li, Xianglan,et al."Response of soil methane uptake to simulated nitrogen deposition and grazing management across three types of steppe in Inner Mongolia, China".SCIENCE OF THE TOTAL ENVIRONMENT 612(2018):799-808.