Quantitative climate reconstructions of the late Miocene Xiaolongtan megaflora from Yunnan, southwest China
Xia, Ke2,3; Su, Tao2,3; Liu, Yu-Sheng (Christopher)1; Xing, Yao-Wu2,3; Jacques, Frederic M. B.2; Zhou, Zhe-Kun2
Corresponding Authorliuc@etsu.edu ; zhouzk@mail.kib.ac.cn
2009-05-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume276Issue:1-4Pages:80-86
AbstractThe late Miocene Xiaolongtan megaflora from Kaiyuan in southeast Yunnan (23 degrees 48'45 '' N, 103 degrees 11'52 '' E, 1050 m a.s.l.) was chosen for palaeoclimatic reconstruction using three quantitative techniques, i.e. the Coexistence Approach (CA), Leaf Margin Analysis (LMA), and the Climate-Leaf Analysis Multivariate Program (CLAMP). The reconstructed climatic parameters are also compared with those of the two adjacent Miocene floras currently available in Yunnan, i.e. the early to middle Miocene carpological Mangdan flora (24 degrees 24'N, 97 degrees 49'E, 1620 m a.s.l.) and the late Miocene Luhe palynoflora (25 degrees 10'N, 101 degrees 22'E, 1930 m a.s.l.). Quantitative analyses of the Xiaolongtan flora supports the previous qualitative results of a southern, humid subtropical climate, being more humid and having a slightly higher mean annual temperature (MAT) than today. The MATs calculated by CA, LMA, and CLAMP overlap (16.7-19.2 degrees C, 22.3 +/- 2.05 degrees C, 18.1 +/- 1.2 degrees C, respectively) and are close to the present day value (19.7 degrees C). The overlapping of temperatures derived using the three techniques is unusual and probably related to the low latitude of the Xiaolongtan area and the southern subtropical nature of its vegetation. Both the mean temperatures of the warmest month (WMT) and of the coldest month (CMT) reconstructed by CA (WMT=25.4-26.0 degrees C, CMT=7.7-8.7 degrees C) and CLAMP (WMT=25.9 +/- 1.6 degrees C, CMT=10.8 +/- 1.9 degrees C) are similar to those of today (WMT=24.3 degrees C, CMT=12.8 degrees C), but great changes appear in the mean annual precipitation (MAP). The CLAMP results suggest a higher precipitation (1964 +/- 335.9 mm) than CA (1215-1639 mm), but they are much higher than the present MAP (820.5 mm). This is consistent with results from the Luhe palynoflora, which also developed under a warmer subtropical climate with higher precipitation (803.6-1254.7 mm) than that of today (815.9 mm). In contrast, the Mangdan flora, situated in a more complicated topographic region to the west of Xiaolongtan and near the Sino-Myanmar border, implies a slightly lower precipitation (1170-1300 mm) than that of today (1300-1400 mm). Overall, the wetter climate during the late Miocene around the Xiaolongtan area suggests that the Himalayas had not yet uplifted to its present altitudes at that time. (C) 2009 Elsevier B.V. All rights reserved.
KeywordMiocene Xiaolongtan Megaflora Quantitative Climate Reconstruction Yunnan
Subject AreaGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
DOI10.1016/j.palaeo.2009.02.024
Indexed BySCI
Language英语
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000266906200008
Citation statistics
Cited Times:71[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/3094
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.E Tennessee State Univ, Dept Biol Sci, Johnson City, TN 37614 USA
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xia, Ke,Su, Tao,Liu, Yu-Sheng ,et al. Quantitative climate reconstructions of the late Miocene Xiaolongtan megaflora from Yunnan, southwest China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2009,276(1-4):80-86.
APA Xia, Ke,Su, Tao,Liu, Yu-Sheng ,Xing, Yao-Wu,Jacques, Frederic M. B.,&Zhou, Zhe-Kun.(2009).Quantitative climate reconstructions of the late Miocene Xiaolongtan megaflora from Yunnan, southwest China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,276(1-4),80-86.
MLA Xia, Ke,et al."Quantitative climate reconstructions of the late Miocene Xiaolongtan megaflora from Yunnan, southwest China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 276.1-4(2009):80-86.
Files in This Item: Download All
File Name/Size DocType Version Access License
201112190019.pdf(257KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xia, Ke]'s Articles
[Su, Tao]'s Articles
[Liu, Yu-Sheng (Christopher)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xia, Ke]'s Articles
[Su, Tao]'s Articles
[Liu, Yu-Sheng (Christopher)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xia, Ke]'s Articles
[Su, Tao]'s Articles
[Liu, Yu-Sheng (Christopher)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 201112190019.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.