干旱区生态环境知识资源中心(Arid): Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China

Arid

DOI	10.1038/s41598-019-39147-9
	Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China
	Wang, M.1,2; Zheng, Z.1; Zong, Y.2; Man, M.1; Tian, L.1
通讯作者	Zong, Y.
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2019
卷号	9
英文摘要	Distributions of branched glycerol dialkyl glycerol tetraethers (brGDGTs) from soil bacteria have been recently used for reconstructions of past soil pH and air temperature history. Here, we report the brGDGTs distribution patterns from different climate regions of China, using 42 novel brGDGT data from sub-tropical Chinese soils, compiled alongside previously-published data encompassing different environmental conditions across China. These patterns show high abundance of Ia fraction in soils from humid areas, and high abundance of IIa' and IIIa' fractions corresponds to semi-humid or semi-arid conditions, implying a possible relationship with precipitation. The abundance of IIa fraction appears negatively correlated with air temperature. Statistically, the soil pH and temperature factors represent 62% and 30% variations of the total variance respectively. For soils from humid and semi-humid regions, strong correlations between cyclization of branched tetraethers (CBT') index and soil pH (R-2 = 0.89) and between methylation of branched tetraethers (MBT'(5ME)) index and mean annual temperature (MAT) (R-2 = 0.82) exist. When soils from semi-arid regions are included, the correlations become slightly stronger with pH and significantly weaker with MAT. Our study confirms the usefulness of soil brGDGTs distributions for Quaternary palaeo-climate reconstructions.
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000459698900022
WOS关键词	ENVIRONMENTAL CONTROLS ; SUMMER TEMPERATURE ; MEMBRANE-LIPIDS ; HOLOCENE ; VEGETATION ; RECONSTRUCTION ; ASSEMBLAGES ; CALIBRATION ; ABUNDANCE ; PATTERNS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218758
作者单位	1.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Geodynam & Geohazards, Guangzhou, Guangdong, Peoples R China; 2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Wang, M.,Zheng, Z.,Zong, Y.,et al. Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China[J],2019,9.
APA	Wang, M.,Zheng, Z.,Zong, Y.,Man, M.,&Tian, L..(2019).Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China.SCIENTIFIC REPORTS,9.
MLA	Wang, M.,et al."Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China".SCIENTIFIC REPORTS 9(2019).