TITLE:
Comparison of Climate and Environment Change of the Last Interglacial Period and Holocene in Beijing Area, China
AUTHORS:
Yonggang Ge, Mingjian Wei
KEYWORDS:
Vegetation, Climate, Environment, Last Interglacial Period, MIS5, Holocene
JOURNAL NAME:
International Journal of Geosciences,
Vol.5 No.8,
July
31,
2014
ABSTRACT:
Research
on climate changes between the last interglacial period and Holocene renders a speculation
on the tendency of present climate. Fully understanding the nature of the
changes will play a significant role in a better understanding of global
climate change. This work discussed the climate change of the last interglacial
period and Holocene in Beijing area to discover the mechanism of local
palaeo-climate change. The palaeo-vegetation of the last interglacial period in
Xishan Mountain of Beijing was reconstructed by pollen analysis and
thermo-luminescence dating to represent the change of palaeo-climate and
palaeo-environment. Palaeo-vegetation indicators demonstrated that the climate
change of the last interglacial period included 6 stages and was homologous to
that reflected by the records from deep sea depositions and polar ice cores, respectively
corresponding to Marine Isotope Stage (MIS) 5e, 5d, 5c, 5b, 5a and the interim
from MIS5 to MIS4 from the early to the
late. Millennial climate abrupt events occurred in MIS 5e, which
had an agreement with the records of GRIP. In addition, a climate warming event
appeared in the interim from MIS5 to MIS4 and it also was found in other
regions of the world. Compared with the vegetation and environment indicators
of Holocene in Beijing area, it was found that the vegetation, climate and
environment of the last glacial period were better than those of Holocene. The
climate abrupt events not only appeared in the last interglacial period and MIS
5e, but also occurred in Holocene, whose mechanism and pattern were analogical.
After analyzing the records of millennial climate abrupt change events from
this work, Ice Cores and others, it was concluded that climate was instability
in the interglacial period.