干旱区生态环境知识资源中心(Arid): Relation between soil glycerol dialkyl glycerol tetraethers and temperature in different climatic regions in China

Arid

DOI	10.1002/esp.5889
	Relation between soil glycerol dialkyl glycerol tetraethers and temperature in different climatic regions in China
	Zhang, Can; Sun, Xiaoshuang; Leng, Chengcheng; Yan, Tianlong; Jin, Miao; Liu, Jinliang
通讯作者	Zhang, C
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2024
英文摘要	Temperature variation in the past periods can provide valuable insights into the characteristics and driving mechanisms of current global warming and future changes. Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are commonly used to as a temperature proxy to quantitatively reconstruct past temperature changes. However, it still remains unclear whether the relation between brGDGTs and temperature is influenced by other environmental factors, thereby affecting the accuracy of quantitative reconstructions. A comprehensive analysis of the relation between brGDGTs and temperature across various climate regions can greatly enhance the accuracy of reconstructing past temperature changes. Here, we investigate the distribution patterns of soil brGDGTs using 28 new topsoils collected from altitudes ranging from 2100 to 4000 m.a.s.l. in the Hengduan Mountains in the southeastern margin of the Tibetan Plateau (TP), compiled previously published soil brGDGT data in China. Our results reveal distinct distribution patterns of soil brGDGTs between humid and arid regions. Furthermore, we further investigated the correlation between brGDGT indices and various environmental factors from both altitudinal and regional scales. At the altitudinal scale, brGDGT indices exhibit a stronger correlation with mean annual air temperature (MAAT) in alkaline soils (pH > 7) than that in acidic soils (pH < 7). At the regional scale, this correlation is higher in alkaline soils than that in acidic soils as well and is stronger in humid soils (mean annual precipitation [MAP] > 800 mm) than that in semi-humid and semi-arid soil (400 < MAP < 800 mm) and arid soil (MAP < 400 mm). In addition, brGDGT-inferred temperature is more affected by MAP in humid alkaline soils but less affected in humid acidic soils. Therefore, caution is needed to use suitable brGDGT index for palaeotemperature reconstructions in various climate regions.
英文关键词	altitudinal gradient brGDGTs China regional scale temperature
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001229189100001
WOS关键词	QINGHAI-TIBETAN PLATEAU ; ALTITUDINAL TRANSECT ; LIPIDS ; BRGDGTS ; PROXY ; GDGTS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403322
推荐引用方式 GB/T 7714	Zhang, Can,Sun, Xiaoshuang,Leng, Chengcheng,et al. Relation between soil glycerol dialkyl glycerol tetraethers and temperature in different climatic regions in China[J],2024.
APA	Zhang, Can,Sun, Xiaoshuang,Leng, Chengcheng,Yan, Tianlong,Jin, Miao,&Liu, Jinliang.(2024).Relation between soil glycerol dialkyl glycerol tetraethers and temperature in different climatic regions in China.EARTH SURFACE PROCESSES AND LANDFORMS.
MLA	Zhang, Can,et al."Relation between soil glycerol dialkyl glycerol tetraethers and temperature in different climatic regions in China".EARTH SURFACE PROCESSES AND LANDFORMS (2024).