Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau
A well-dated pollen record from a large lake located on the meadow-steppe ecotone provides a history of ecotone shift in response to monsoonal climate changes over the last 6000 years in the central Tibetan Plateau. The pollen record indicates that the ecotone shifted eastward during 6000-4900, 4400...
Main Authors: | , , , , , |
---|---|
Format: | Report |
Language: | English |
Published: |
ECOLOGICAL SOC AMER
2008
|
Subjects: | |
Online Access: | http://ir.nigpas.ac.cn/handle/332004/129 |
id |
ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/129 |
---|---|
record_format |
openpolar |
spelling |
ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/129 2023-05-15T16:39:10+02:00 Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau Shen, Caiming Liu, Kam-Biu Morrill, Carrie Overpeck, Jonathan T. Peng, Jinlan (彭金兰) Tang, Lingyu (唐领余) 2008-04-01 http://ir.nigpas.ac.cn/handle/332004/129 英语 eng ECOLOGICAL SOC AMER ECOLOGY http://ir.nigpas.ac.cn/handle/332004/129 Ecotone Holocene Lake Meadow Monsoon Pollen Precipitation Steppe Tibetan Plateau Ice Core Records Climatic-change Summer Monsoon Indian Monsoon Abrupt Changes Western Tibet Sumxi Co Yr Bp Variability Environmental Sciences & Ecology Ecology 期刊论文 2008 ftchinacscnigpas 2019-10-11T00:03:03Z A well-dated pollen record from a large lake located on the meadow-steppe ecotone provides a history of ecotone shift in response to monsoonal climate changes over the last 6000 years in the central Tibetan Plateau. The pollen record indicates that the ecotone shifted eastward during 6000-4900, 4400-3900, and 2800-1600 cal. yr BP when steppes occupied this region, whereas it shifted westward during the other intervals when the steppes were replaced by meadows. The quantitative reconstruction of paleoclimate derived from the pollen record shows that monsoon precipitation fluctuated around the present level over the last 6000 years in the central Tibetan Plateau. Three major drought episodes of 5600-4900, 4400-3900, and 2800-2400 cal. yr BP are detected by pollen signals and lake sediments. Comparison of our record with other climatic proxy data from the Tibetan Plateau and other monsoonal regions shows that these episodes are three major centennial-scale monsoon weakening events. Report ice core Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Indian |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Ecotone Holocene Lake Meadow Monsoon Pollen Precipitation Steppe Tibetan Plateau Ice Core Records Climatic-change Summer Monsoon Indian Monsoon Abrupt Changes Western Tibet Sumxi Co Yr Bp Variability Environmental Sciences & Ecology Ecology |
spellingShingle |
Ecotone Holocene Lake Meadow Monsoon Pollen Precipitation Steppe Tibetan Plateau Ice Core Records Climatic-change Summer Monsoon Indian Monsoon Abrupt Changes Western Tibet Sumxi Co Yr Bp Variability Environmental Sciences & Ecology Ecology Shen, Caiming Liu, Kam-Biu Morrill, Carrie Overpeck, Jonathan T. Peng, Jinlan (彭金兰) Tang, Lingyu (唐领余) Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau |
topic_facet |
Ecotone Holocene Lake Meadow Monsoon Pollen Precipitation Steppe Tibetan Plateau Ice Core Records Climatic-change Summer Monsoon Indian Monsoon Abrupt Changes Western Tibet Sumxi Co Yr Bp Variability Environmental Sciences & Ecology Ecology |
description |
A well-dated pollen record from a large lake located on the meadow-steppe ecotone provides a history of ecotone shift in response to monsoonal climate changes over the last 6000 years in the central Tibetan Plateau. The pollen record indicates that the ecotone shifted eastward during 6000-4900, 4400-3900, and 2800-1600 cal. yr BP when steppes occupied this region, whereas it shifted westward during the other intervals when the steppes were replaced by meadows. The quantitative reconstruction of paleoclimate derived from the pollen record shows that monsoon precipitation fluctuated around the present level over the last 6000 years in the central Tibetan Plateau. Three major drought episodes of 5600-4900, 4400-3900, and 2800-2400 cal. yr BP are detected by pollen signals and lake sediments. Comparison of our record with other climatic proxy data from the Tibetan Plateau and other monsoonal regions shows that these episodes are three major centennial-scale monsoon weakening events. |
format |
Report |
author |
Shen, Caiming Liu, Kam-Biu Morrill, Carrie Overpeck, Jonathan T. Peng, Jinlan (彭金兰) Tang, Lingyu (唐领余) |
author_facet |
Shen, Caiming Liu, Kam-Biu Morrill, Carrie Overpeck, Jonathan T. Peng, Jinlan (彭金兰) Tang, Lingyu (唐领余) |
author_sort |
Shen, Caiming |
title |
Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau |
title_short |
Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau |
title_full |
Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau |
title_fullStr |
Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau |
title_full_unstemmed |
Ecotone shift and major droughts during the mid-late holocene in the central Tibetan Plateau |
title_sort |
ecotone shift and major droughts during the mid-late holocene in the central tibetan plateau |
publisher |
ECOLOGICAL SOC AMER |
publishDate |
2008 |
url |
http://ir.nigpas.ac.cn/handle/332004/129 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
ice core |
genre_facet |
ice core |
op_relation |
ECOLOGY http://ir.nigpas.ac.cn/handle/332004/129 |
_version_ |
1766029502517870592 |