Palaeogene fossil Populus leaves from Lanzhou Basin and their palaeoclimatic significance

doi:10.1360/01wd0154

	Palaeogene fossil Populus leaves from Lanzhou Basin and their palaeoclimatic significance
	Sun, BA ; Yan, DF ; Xie, SP ; Cong, PY ; Xin, CL ; Yun, F
	2004-07-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	49 期号:14 页码:1494-1501
摘要	An angiosperm compression flora is found in Palaeogene from Lanzhou Basin and the cuticular analysis of Populus davidiana Dode in the flora is carefully made. Furthermore, the fossil cuticles are compared with the epidermal structures of extant Populus leaves growing in different environments, i.e. moist, semimoist, and semiarid to and climatic regions. The present experiments indicate that mature leaves of R davidiana show leaf size from big to small, leaf cuticles from thick to thin and anticlinal walls of epidermal cells from faintness to clarity along with the increase of latitudes of the plant distributions, the climatic variation from moist to arid, the annual precipitation from more to less and the annual mean temperature from high to low. The fossil P. davidiana differs from the specimens collected from Shandan in semiarid to and climatic regions but closely resembles the Wushan leaves in a semi-moist climatic area in a lot of features. In a word, the new research may reflect that the flora lives in a semi-moist climatic environment. The present discovery of compression of Paleogene Populus davidiana is of great significance to studying vegetation types, climatic and environmental changes during the primal uplifting of the Qinghai-Tibet Plateau.
关键词	paleogene Populus davidiana fossil cuticle palaeoclimate Lanzhou Basin
DOI	10.1360/01wd0154
语种	英语
关键词[WOS]	TERTIARY DEPOSITS ; MAGNETOSTRATIGRAPHY ; RECORD
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000224400900014
出版者	SCIENCE CHINA PRESS
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/1049
专题	中国科学院南京地质古生物研究所
通讯作者	Sun, BA
作者单位	1.Lanzhou Univ, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Sun, BA,Yan, DF,Xie, SP,et al. Palaeogene fossil Populus leaves from Lanzhou Basin and their palaeoclimatic significance[J]. CHINESE SCIENCE BULLETIN,2004,49(14):1494-1501.
APA	Sun, BA,Yan, DF,Xie, SP,Cong, PY,Xin, CL,&Yun, F.(2004).Palaeogene fossil Populus leaves from Lanzhou Basin and their palaeoclimatic significance.CHINESE SCIENCE BULLETIN,49(14),1494-1501.
MLA	Sun, BA,et al."Palaeogene fossil Populus leaves from Lanzhou Basin and their palaeoclimatic significance".CHINESE SCIENCE BULLETIN 49.14(2004):1494-1501.