DOI: 10.1016/j.quascirev.2012.12.004
Scopus记录号: 2-s2.0-84872742604
论文题名: Variations in carbon isotope ratios of plants across a temperature gradient along the 400 mm isoline of mean annual precipitation in north China and their relevance to paleovegetation reconstruction
作者: Wang G. ; Li J. ; Liu X. ; Li X.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 63 起始页码: 83
结束页码: 90
语种: 英语
英文关键词: C3 plant
; C4 plant
; Carbon isotope ratio
; Paleovegetation reconstruction
; Temperature
Scopus关键词: A-coefficient
; C<sub>3</sub> plant
; C<sub>4</sub> plant
; Carbon isotope ratio
; Carbon isotopes
; Chinese Loess Plateau
; Effect of temperature
; Environmental conditions
; Influential factors
; Mean annual precipitation
; Mean annual temperatures
; North China
; Number of species
; Paleoclimates
; Paleoecology
; Stomatal conductance
; Temperature correction
; Terrestrial organic matter
; Isotopes
; Temperature
; Thermal gradients
; Carbon
; atmospheric correction
; C3 plant
; C4 plant
; carbon isotope
; environmental conditions
; isotopic ratio
; paleoclimate
; paleoecology
; paleotemperature
; photosynthesis
; precipitation (climatology)
; Quaternary
; reconstruction
; stomatal conductance
; temperature gradient
; vegetation history
; China
英文摘要: Carbon isotope values (δ13C) of plants reflect the balance between photosynthesis and stomatal conductance and vary with environmental conditions. Temperature is an important influential factor for plant δ13C; however, variations of plant δ13C across temperature gradients have yet to be quantified. This impedes interpretation of variability of δ13C in ancient terrestrial organic matter and reconstructions of paleoclimate and paleoecology. In this study, the effect of temperature on δ13C of C3 and C4 plants was assessed by comprehensive investigation of a large number of species (118 C3 plants and 17 C4 plants) from 29 sites across a temperature gradient along the 400 mm mean annual precipitation isoline in north China. After deducting the effects of precipitation on plant δ13C, a strong positive relationship is found between δ13C values of C3 plants averaged for each site and mean annual temperature, with a coefficient of 0.104‰/°C; however, no significant correlation is found for C4 plants. Based on our results, we conduct a sample reconstruction of paleovegetation of the central Chinese Loess Plateau and demonstrate that, to a certain extent, our paleovegetation reconstruction is affected by temperature corrections. © 2012 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60710
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Environmental Sciences and Technology, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; College of Geography and Planning, Ludong University, Yantai 264025, China
Recommended Citation:
Wang G.,Li J.,Liu X.,et al. Variations in carbon isotope ratios of plants across a temperature gradient along the 400 mm isoline of mean annual precipitation in north China and their relevance to paleovegetation reconstruction[J]. Quaternary Science Reviews,2013-01-01,63