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Methane uptake in global forest and grassland soils from 1981 to 2010

文献类型：期刊论文

作者Yu, Lijun; Huang, Yao2; Zhang, Wen; Li, Tingting; Sun, Wenjuan2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2017
卷号607页码:1163-1172
关键词CH4 uptake Global Forest soils Grassland soils Climate zone
ISSN号0048-9697
DOI10.1038/s41598-017-11133-z
文献子类Article
英文摘要Methane (CH4) is one of the most potent greenhouse gases. Although forest and grassland soils generally consume atmospheric CH4, the quantities and spatiotemporal changes in CH4 uptake remain largely uncertain for these ecosystems at the global scale. In this study, we developed an empirical model to estimate the CH4 uptake in global forest and grassland soils during the period 1981-2010. We estimated that the mean values of CH4 uptake were 9.16 (+/- 3.84) Tg yr(-1) in forest soils and 3.73 (+/- 1.41) Tg yr(-1) in grassland soils during the study period. Tropical forest and grassland soils were determined to be the largest CH4 sink, contributing 58% to the global total. During the 30-year period, the CH4 uptake in cool temperate dry and warm temperate dry soils and in polar/boreal grassland soils increased significantly (P < 0.05) at rates of 0.30-2.95 Gg yr(-1) owing mainly to increases in mean temperatures. However, the uptake decreased significantly (P < 0.01) in tropical dry grassland soils, at 1.22 Gg yr(-1), owing mainly to increases in precipitation. Ultimately, our simulation indicated that the global CH4 uptake by forest and grassland soils increased significantly (P < 0.05) at rates of 4.67 Gg yr(-1) and 2.98 Gg yr(-1), respectively, during the period 1981-2010. The trend of increasing sinks from forest and grassland and its relationship with temperature and precipitation variability imply that forest and grassland CH4 sinks will play a positive role in climate change mitigation in the future. (C) 2017 Elsevier B.V. All rights reserved.
学科主题Science & Technology - Other Topics
出版地AMSTERDAM
电子版国际标准刊号1879-1026
WOS关键词ATMOSPHERIC METHANE ; LAND-USE ; CARBON-DIOXIDE ; OXIDATION ; CONSUMPTION ; FLUXES ; MODEL ; CH4 ; VARIABILITY ; ECOSYSTEMS
语种英语
WOS记录号WOS:000409561800033
出版者ELSEVIER
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370492, 41573069] ; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC) ; Institute of Atmospheric Physics (IAP) ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/21989]  
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, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Lijun,Huang, Yao,Zhang, Wen,et al. Methane uptake in global forest and grassland soils from 1981 to 2010[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,607:1163-1172.
APA Yu, Lijun,Huang, Yao,Zhang, Wen,Li, Tingting,&Sun, Wenjuan.(2017).Methane uptake in global forest and grassland soils from 1981 to 2010.SCIENCE OF THE TOTAL ENVIRONMENT,607,1163-1172.
MLA Yu, Lijun,et al."Methane uptake in global forest and grassland soils from 1981 to 2010".SCIENCE OF THE TOTAL ENVIRONMENT 607(2017):1163-1172.

入库方式： OAI收割

来源：植物研究所

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