Late Pliocene vegetation and climate of Zhangcun region, Shanxi, North China.

Author(s)
Qin Feng, David-Kay Ferguson, Reinhard Zetter, Yu-Fei Wang, Jin-Feng Li, Jian Yang, Cheng-Sen Li
Abstract

To understand the Neogene climatic changes in eastern Asia and evaluate the intercontinental climatic differences, we have quantitatively reconstructed the vegetation successions and climatic changes in the late Pliocene Zhangcun area based on the palynological data and explored the regional climatic differences between central Europe and eastern Asia. The late Pliocene palynological assemblage of Zhangcun, Shanxi was composed of 63 palynomorphs, belonging to 50 families, covering angiosperms (90.2%), gymnosperms (9.7%), ferns (0.09%), and other elements (0.02%). Four periods of vegetation succession over time were recognized. In period 1, a needle- and broad-leaved mixed forest prevailed with a cool and dry climate. Period 2 was characterized by an expansion of forest with a warmer and wetter climate. The number of conifers increased and that of herbs decreased in period 3, and the climate became cool and dry. In period 4, the forest was dominated by conifers and reflecting a cooler climate. The data of seven climatic parameters in general and four periods estimated by the Coexistence Approach suggested that (1) The late Pliocene temperatures and precipitations were higher than today. (2) The Neogene climate of both Central Europe and North China exhibited a general cooling and drying trend although the mean annual temperature dropped by ca. 1 °C in North China, vs. ca. 7 °C in Central Europe from the middle Miocene to the late Pliocene. (3) The decline of the mean maximum monthly precipitation might signal a weakening of the summer monsoon. (4) The decline of both the mean coldest monthly temperature and the mean minimum monthly precipitation might be linked to the strengthening of the winter monsoon in eastern Asia. (5) The rapid uplift of the Tibetan Plateau strengthened the climatic cooling and drying during the late Pliocene of the Zhangcun region.

Organisation(s)
Department of Palaeontology
External organisation(s)
Chinese Academy of Sciences (CAS)
Journal
Global Change Biology
Volume
17
Pages
1850-1870
No. of pages
21
ISSN
1354-1013
Publication date
2011
Peer reviewed
Yes
Austrian Fields of Science 2012
105118 Palaeontology, 105101 General geology
Portal url
https://ucrisportal.univie.ac.at/en/publications/c84a9e5e-5c61-4479-a3fa-127b164583d7