干旱区生态环境知识资源中心(Arid): Holocene carbon accumulation in lakes of the current east Asian monsoonal margin: Implications under a changing climate

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DOI	10.1016/j.scitotenv.2020.139723
	Holocene carbon accumulation in lakes of the current east Asian monsoonal margin: Implications under a changing climate
	Hao, Qian; Yang, Shilei; Song, Zhaoliang; Ran, Xiangbin; Yu, Changxun; Chen, Chunmei; Van Zwieten, Lukas; Quine, Timothy A.; Liu, Hongyan; Wang, Zhengang; Wang, Hailong
通讯作者	Song, ZL
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	737
英文摘要	Carbon (C) present in lake sediments is an important global sink for CO2; however, an in-depth understanding of the impact of climate variability and the associated changes in vegetation on sediment C dynamics is still lacking. A total of 13 lakes were studied to quantify the influence of climate and vegetation on the reconstructed Holocene C accumulation rate (CAR) in lake sediments of the modern East Asian monsoonal margin. The corresponding paleoclimate information was assessed, including the temperature (30-90 degrees N in the Northern Hemisphere) and precipitation (indicated by the delta O-18 of the Sanbao, Dongge, and Hulu caves). The Holocene vegetation conditions were inferred by pollen records, including arboreal pollen/non-arboreal pollen and pollen percentages. The results showed that the peak CAR occurred during the mid-Holocene, coinciding with the strongest period of the East Asian summer monsoon and expansion of forests. Lakes in the temperate steppe (TS) regions had a mean CAR of 13.41 +/- 0.88 g C m(-2) yr(-1), which was significantly greater than the CARs of temperate desert (TD) and highland meadow/steppe (HMS; 6.76 +/- 0.29 and 7.39 +/- 0.73 g C m(-2) yr(-1), respectively). The major influencing factor for the TS sub-region was vegetation dynamics, especially the proportion of arboreal vegetation, while temperature and vegetation coverage were more important for the HMS. These findings indicate that C accumulation in lake sediments is linked with climate and vegetation changes over long timescales; however, there was notable spatial heterogeneity in the CARs, such as opposing temporal changes and different major influencing factors among the three sub-regions during the mid-Holocene. Aridification and forest loss would decrease C storage. However, prediction of C accumulation remains difficult because of the spatial heterogeneity in CARs and the interaction between the CAR and various factors under future climate change conditions. (c) 2020 Elsevier B.V. All rights reserved.
英文关键词	Carbon sequestration Pollen records Temperate steppe Temperate desert Highland meadow/steppe
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000553708300014
WOS关键词	SOIL ORGANIC-CARBON ; FOREST-STEPPE ECOTONE ; RESOLUTION POLLEN RECORD ; INNER-MONGOLIA ; NORTHERN CHINA ; ENVIRONMENTAL-CHANGE ; CONTINENTAL ASIA ; YANGTZE-RIVER ; QINGHAI LAKE ; QAIDAM BASIN
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325281
作者单位	[Hao, Qian; Yang, Shilei; Song, Zhaoliang; Chen, Chunmei] Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; [Hao, Qian; Yang, Shilei; Song, Zhaoliang; Chen, Chunmei] Tianjin Univ, Sch Earth Syst Sci, Tianjin 300072, Peoples R China; [Ran, Xiangbin] State Ocean Adm, Inst Oceanog 1, Res Ctr Marine Ecol, Qingdao 266061, Shandong, Peoples R China; [Yu, Changxun] Linnaeus Univ, Dept Biol & Environm Sci, SE-39182 Kalmar, Sweden; [Van Zwieten, Lukas] New South Wales Dept Primary Ind, 1243 Bruxner Highway, Wollongbar, NSW 2477, Australia; [Quine, Timothy A.] Univ Exeter, Geog, Amory Bldg,Rennes Dr, Exeter EX4 4RJ, Devon, England; [Liu, Hongyan] Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; [Wang, Zhengang] Sun Yat Sen Univ, Sch Geog & Planning, Guangzhou 510275, Guangdong, Peoples R China; [Wang, Hailong] Foshan Univ, Sch Environm & Chem Engn, Foshan 528000, Guangdong, Peoples R China; [Wang, Hailong] Zhejiang A&F Univ, Sch Environm & Resource Sci, Hangzhou 311...
推荐引用方式 GB/T 7714	Hao, Qian,Yang, Shilei,Song, Zhaoliang,et al. Holocene carbon accumulation in lakes of the current east Asian monsoonal margin: Implications under a changing climate[J]. 北京大学,2020,737.
APA	Hao, Qian.,Yang, Shilei.,Song, Zhaoliang.,Ran, Xiangbin.,Yu, Changxun.,...&Wang, Hailong.(2020).Holocene carbon accumulation in lakes of the current east Asian monsoonal margin: Implications under a changing climate.SCIENCE OF THE TOTAL ENVIRONMENT,737.
MLA	Hao, Qian,et al."Holocene carbon accumulation in lakes of the current east Asian monsoonal margin: Implications under a changing climate".SCIENCE OF THE TOTAL ENVIRONMENT 737(2020).