DOI: 10.5194/cp-9-1911-2013
Scopus记录号: 2-s2.0-84882769508
论文题名: Post-Pliocene establishment of the present monsoonal climate in SW China: Evidence from the late Pliocene Longmen megaflora
作者: Su T. ; Jacques F.M.B. ; Spicer R.A. ; Liu Y.-S. ; Huang Y.-J. ; Xing Y.-W. ; Zhou Z.-K.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2013
卷: 9, 期: 4 起始页码: 1911
结束页码: 1920
语种: 英语
Scopus关键词: coexistence
; flora
; growing season
; monsoon
; paleoclimate
; paleoecology
; paleotemperature
; Pliocene
; precipitation (climatology)
; China
; Yongping
; Yunnan
英文摘要: The paleoclimate of the late Pliocene Longmen flora from Yongping County located at the southeastern boundary of the Qinghai-Tibet Plateau was reconstructed using two leaf-physiognomy-based methods, i.e., leaf margin analysis (LMA) and Climate Leaf Analysis Multivariate Program (CLAMP), to understand the paleoclimate condition and geographical pattern of monsoonal climate in southwestern China during the late Pliocene. The mean annual temperatures (MATs) estimated by LMA and CLAMP are 17.4 ± 3.3 C and 17.4 ± 1.3 C, respectively, compared with 15.9 C at present. Meanwhile, the growing season precipitation (GSP) estimated by CLAMP is 1735.5 ± 217.7 mm in the Longmen flora, compared with 986.9 mm nowadays. The calculated monsoon intensity index (MSI) of the Longmen flora is significantly lower than that of today. These results appear consistent with previous studies on the late Pliocene floras in western Yunnan based on the coexistence approach (CA), and further suggest that there was a slightly warmer and much wetter climate during the late Pliocene than the present climate in western Yunnan. We conclude that the significant change of the monsoonal climate might have been resulted from the continuous uplift of mountains in western Yunnan, as well as the intensification of the eastern Asian winter monsoon, both occurring concurrently in the post-Pliocene period. © Author(s) 2013. 资助项目: NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49405
Appears in Collections: 气候变化与战略
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Recommended Citation:
Su T.,Jacques F.M.B.,Spicer R.A.,et al. Post-Pliocene establishment of the present monsoonal climate in SW China: Evidence from the late Pliocene Longmen megaflora[J]. Climate of the Past,2013-01-01,9(4)