气候变化领域集成服务门户(CCPortal): Spatial and temporal change patterns of near-surface CO2 and CH4 concentrations in different permafrost regions on the Mongolian Plateau from 2010 to 2017

CCPortal

DOI	10.1016/j.scitotenv.2021.149433
	Spatial and temporal change patterns of near-surface CO2 and CH4 concentrations in different permafrost regions on the Mongolian Plateau from 2010 to 2017
	Adiya, Saruulzaya; Dalantai, Sainbayar; Wu, Tonghua; Wu, Xiaodong; Yamkhin, Jambaljav; Bao, Yuhai; Sumiya, Erdenesukh; Yadamsuren, Gansukh; Avirmed, Dashtseren; Dorjgotov, Battogtokh
通讯作者	Adiya, S (通讯作者)，Mongolian Acad Sci, Inst Geog & Geoecol, Ulaanbaatar 15170, Mongolia.
发表日期	2021
ISSN	0048-9697
EISSN	1879-1026
卷号	800
英文摘要	Greenhouse gases (GHGs) released from permafrost regions may have a positive feedback to climate change, but there is much uncertainty about additional warming from the permafrost carbon cycle. One of the main reasons for this uncertainty is that the observation data of large-scale GHG concentrations are sparse, especially for areas with rapid permafrost degradation. We selected the Mongolian Plateau as the study area. We first analyzed the active layer thickness and ground temperature changes using borehole observations. Based on ground observation data, we assessed the applicability of Greenhouse Gases Observing Satellite (GOSAT) carbon dioxide (CO2) and methane (CH4) datasets. Finally, we analyzed the temporal and spatial changes in near-surface CO2 and CH4 concentrations from 2010 to 2017 and their patterns in different permafrost regions. The results showed that the Mongolian permafrost has been experiencing rapid degradation. The annual average near-surface CO2 concentration increased gradually between 2.19 ppmv/yr and 2.38 ppmv/yr, whereas the near-surface CH4 concentration increased significantly from 7.76 ppbv/yr to 8.49 ppbv/yr. There were significant seasonal variations in near-surface CO2 and CH4 concentrations for continuous, discontinuous, sporadic, and isolated permafrost zones. The continuous and discontinuous permafrost zones had lower near-surface CO2 and CH4 concentrations in summer and autumn, whereas sporadic and isolated permafrost zones had higher near-surface CO2 and CH4 concentrations in winter and spring. Our results indicated that climate warming led to rapid permafrost degradation, and carbon-based GHG concentrations also increased rapidly in Mongolia. Although, GHG concentrations increased at rates similar to the global average and many factors can account for their changes, GHG concentration in the permafrost regions merits more attention in the future because the spatiotemporal distribution has indicated a different driving force for regional warming. (C) 2021 Elsevier B.V. All rights reserved.
关键词	DISCONTINUOUS PERMAFROST NORTHERN-HEMISPHERE CARBON-DIOXIDE CLIMATE-CHANGE THERMAL STATE RESPIRATION TEMPERATURE EMISSIONS RELEASE
英文关键词	Near-surface CO2 and CH4 concentrations; Permafrost; Active layer thickness; Ground temperature; GOSAT; Mongolian Plateau
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000701609900004
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254789
作者单位	[Adiya, Saruulzaya; Dalantai, Sainbayar; Yamkhin, Jambaljav; Avirmed, Dashtseren; Dorjgotov, Battogtokh] Mongolian Acad Sci, Inst Geog & Geoecol, Ulaanbaatar 15170, Mongolia; [Dalantai, Sainbayar; Sumiya, Erdenesukh] Natl Univ Mongolia, Div Nat Sci, Ulaanbaatar 210646, Ulaanbaatar, Mongolia; [Wu, Tonghua; Wu, Xiaodong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou 730000, Gansu, Peoples R China; [Bao, Yuhai] Inner Mongolia Normal Univ, Inner Mongolia Key Lab Remote Sensing & Geog Info, Hohhot 010022, Peoples R China; [Yadamsuren, Gansukh] Minist Food Agr & Light Ind, Ulaanbaatar 13381, Mongolia
推荐引用方式 GB/T 7714	Adiya, Saruulzaya,Dalantai, Sainbayar,Wu, Tonghua,et al. Spatial and temporal change patterns of near-surface CO2 and CH4 concentrations in different permafrost regions on the Mongolian Plateau from 2010 to 2017[J]. 中国科学院西北生态环境资源研究院,2021,800.
APA	Adiya, Saruulzaya.,Dalantai, Sainbayar.,Wu, Tonghua.,Wu, Xiaodong.,Yamkhin, Jambaljav.,...&Dorjgotov, Battogtokh.(2021).Spatial and temporal change patterns of near-surface CO2 and CH4 concentrations in different permafrost regions on the Mongolian Plateau from 2010 to 2017.SCIENCE OF THE TOTAL ENVIRONMENT,800.
MLA	Adiya, Saruulzaya,et al."Spatial and temporal change patterns of near-surface CO2 and CH4 concentrations in different permafrost regions on the Mongolian Plateau from 2010 to 2017".SCIENCE OF THE TOTAL ENVIRONMENT 800(2021).