干旱区生态环境知识资源中心(Arid): Carbon isotope variations of modern soils in the eastern margin of the Tibetan Plateau and their controlling factors

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DOI	10.1007/s11629-019-5863-3
	Carbon isotope variations of modern soils in the eastern margin of the Tibetan Plateau and their controlling factors
	Qi Lin; Qiao Yan-song; Liu Zong-xiu; Peng Sha-sha; Cheng Yu; Wang Yan; Zhang Xu-jiao; Tian Ming-zhong; Yang Shuai-bin; Bai Wen-bin
通讯作者	Qiao, YS (corresponding author), Chinese Acad Geol Sci, Key Lab Neotecton Movement & Geohazard, Beijing 100081, Peoples R China. ; Qiao, YS (corresponding author), Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China.
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
ISSN	1672-6316
EISSN	1993-0321
出版年	2021
卷号	18 期号:4 页码:878-890
英文摘要	The marginal areas of the Tibetan Plateau have great vertical altitude gradient and abundant vegetation, they are therefore the ideal places for investigating the relationships among carbon isotope composition (delta C-13) of modern soils, vegetation and environmental factors, which would be very useful for the reconstructions of both paleovegetation and paleoclimate. In this paper, modern soil samples collected in different vegetation vertical zones along 4 km elevation gradient in the eastern margin of the Tibetan Plateau were analyzed for their carbon isotope composition. The results show that the modern soils in different vegetation vertical zones show apparent difference of delta C-13 values, which get heavier in the sequence of mixed evergreen and deciduous broad-leaved forest (-27.28 parts per thousand on average), evergreen broad-leaved forest (-27.25 parts per thousand), subalpine shrub-meadow (-25.81 parts per thousand), subalpine coniferous forest (-25.81 parts per thousand), alpine bush-meadow (-25.16 parts per thousand), and drought-enduring shrub (-24.07 parts per thousand). 1800 m and 3500 m are two critical points for the delta C-13 values with respect to altitude. Specifically, the delta C-13 values decrease with increasing altitude below both points while increasing with increasing altitude above both points. Further analyses indicate that the declining delta C-13 values are mainly controlled by the decreasing proportion of C-4 plants with elevation and the increasing delta C-13 values are attributed to the plant physic-morphological adaptation to the alpine environment. In the absence of drought stress, temperature is the main controlling factor for the carbon isotopic variations with altitude gradient.
英文关键词	Soil δ C-13 C-4 plant Altitude Vertical zonality
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000639495600005
WOS关键词	HAWAIIAN METROSIDEROS-POLYMORPHA ; AMBIENT PARTIAL-PRESSURE ; ATMOSPHERIC CO2 ; C-4 GRASSES ; DIFFERENT ALTITUDES ; PICEA-CRASSIFOLIA ; HERBACEOUS PLANTS ; FOLIAR DELTA-C-13 ; ORGANIC-MATTER ; ARID REGION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367982
作者单位	[Qi Lin; Qiao Yan-song; Liu Zong-xiu] Chinese Acad Geol Sci, Key Lab Neotecton Movement & Geohazard, Beijing 100081, Peoples R China; [Qi Lin; Qiao Yan-song; Liu Zong-xiu; Wang Yan; Yang Shuai-bin] Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China; [Peng Sha-sha] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China; [Cheng Yu] Inst Geol Survey Jiangsu Prov, Nanjing 210018, Peoples R China; [Zhang Xu-jiao; Tian Ming-zhong; Bai Wen-bin] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Qi Lin,Qiao Yan-song,Liu Zong-xiu,et al. Carbon isotope variations of modern soils in the eastern margin of the Tibetan Plateau and their controlling factors[J],2021,18(4):878-890.
APA	Qi Lin.,Qiao Yan-song.,Liu Zong-xiu.,Peng Sha-sha.,Cheng Yu.,...&Bai Wen-bin.(2021).Carbon isotope variations of modern soils in the eastern margin of the Tibetan Plateau and their controlling factors.JOURNAL OF MOUNTAIN SCIENCE,18(4),878-890.
MLA	Qi Lin,et al."Carbon isotope variations of modern soils in the eastern margin of the Tibetan Plateau and their controlling factors".JOURNAL OF MOUNTAIN SCIENCE 18.4(2021):878-890.