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Spatiotemporal patterns and drivers of methane uptake across a climate transect in Inner Mongolia Steppe

文献类型：期刊论文

作者Liu, Wei6; Yuan, Wenping5; Xu, Sutie4; Shao, Changliang3,7; Hou, Longyu; Xu, Wenfang5; Shi, Huiqiu; Pan, Qingmin; Li, Linghao; Kardol, Paul2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2021
卷号757
关键词Carbon cycle Global warming Precipitation gradient Regional scale Soil moisture Steppe type
ISSN号0048-9697
DOI10.1016/j.scitotenv.2020.143768
文献子类Article
英文摘要Steppe soils are important biological sinks for atmospheric methane (CH4), but the strength of CH4 uptake remains uncertain due to large spatiotemporal variation and the lack of in situ measurements at regional scale. Here, we report the seasonal and spatial patterns of CH4 uptake across a 1200 km transect in arid and semi-arid steppe ecosystems in Inner Mongolia, ranging from meadow steppe in the east plain to typical and desert steppes on the west plateau. In general, seasonal patterns of CH4 uptake were site specific, with unimodal seasonal curves in meadow and typical steppes and a decreasing seasonal trend in desert steppe. Soil moisture was the dominant factor explaining the seasonal patterns of CH4 uptake, and CH4 uptake rate decreased with an increase in soil moisture. Across the transect, CH4 uptake showed a skewed unimodal spatial pattern, with the peak rate observed in the typical steppe sites and with generally higher uptake rates in the west plateau than in the east plain. Soil moisture, together with soil temperature, soil total carbon, and aboveground plant biomass, were the main drivers of the regional patterns of CH4 uptake rate. These findings are important for model development to more precisely estimate the soil CH4 sink capacity in arid and semi-arid regions. (C) 2020 Elsevier B.V. All rights reserved.
学科主题Environmental Sciences
出版地AMSTERDAM
电子版国际标准刊号1879-1026
WOS关键词PLANT-SPECIES DIVERSITY ; ATMOSPHERIC METHANE ; FOREST SOILS ; LAND-USE ; OXIDATION ; CH4 ; FLUXES ; TEMPERATE ; NITROGEN ; N2O
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000604432900049
出版者ELSEVIER
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences [XDA23080403] ; National Key Research and Development Program of China [2016YFC0500601]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26592]  
专题植被与环境变化国家重点实验室
作者单位1.Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umea, Sweden
2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
3.Chinese Acad Agr Sci, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 100081, Peoples R China
4.Sun Yat Sen Univ, Ctr Monsoon & Environm Res, Sch Atmospher Sci, Zhuhai 519082, Guangdong, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
7.Univ Tennessee, Dept Biosyst Engn & Soil Sci, 2506 E J Chapman Dr, Knoxville, TN 37996 USA
推荐引用方式
GB/T 7714		 Liu, Wei,Yuan, Wenping,Xu, Sutie,et al. Spatiotemporal patterns and drivers of methane uptake across a climate transect in Inner Mongolia Steppe[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,757.
APA Liu, Wei.,Yuan, Wenping.,Xu, Sutie.,Shao, Changliang.,Hou, Longyu.,...&Kardol, Paul.(2021).Spatiotemporal patterns and drivers of methane uptake across a climate transect in Inner Mongolia Steppe.SCIENCE OF THE TOTAL ENVIRONMENT,757.
MLA Liu, Wei,et al."Spatiotemporal patterns and drivers of methane uptake across a climate transect in Inner Mongolia Steppe".SCIENCE OF THE TOTAL ENVIRONMENT 757(2021).

入库方式： OAI收割

来源：植物研究所

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