Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr
Abstract This paper presents a high-resolution ice-core pollen record from the Sajama Ice Cap, Bolivia, that spans the last 400 yr. The pollen record corroborates the oxygen isotopic and ice accumulation records from the Quelccaya Ice Cap and supports the scenario that the Little Ice Age (LIA) consi...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1016/j.yqres.2005.06.001 2024-09-30T14:36:27+00:00 Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr Liu, Kam-biu Reese, Carl A. Thompson, Lonnie G. 2005 http://dx.doi.org/10.1016/j.yqres.2005.06.001 http://api.elsevier.com/content/article/PII:S0033589405000797?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589405000797?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400027277 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 64, issue 2, page 272-278 ISSN 0033-5894 1096-0287 journal-article 2005 crcambridgeupr https://doi.org/10.1016/j.yqres.2005.06.001 2024-09-18T04:02:21Z Abstract This paper presents a high-resolution ice-core pollen record from the Sajama Ice Cap, Bolivia, that spans the last 400 yr. The pollen record corroborates the oxygen isotopic and ice accumulation records from the Quelccaya Ice Cap and supports the scenario that the Little Ice Age (LIA) consisted of two distinct phases�"a wet period from AD 1500 to 1700, and a dry period from AD 1700 to 1880. During the dry period xerophytic shrubs expanded to replace puna grasses on the Altiplano, as suggested by a dramatic drop in the Poaceae/Asteraceae (P/A) pollen ratio. The environment around Sajama was probably similar to the desert-like shrublands of the Southern Bolivian Highlands and western Andean slopes today. The striking similarity between the Sajama and Quelccaya proxy records suggests that climatic changes during the Little Ice Age occurred synchronously across the Altiplano. Article in Journal/Newspaper Ice cap ice core Cambridge University Press The Altiplano ENVELOPE(163.917,163.917,-78.133,-78.133) Quaternary Research 64 2 272 278 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract This paper presents a high-resolution ice-core pollen record from the Sajama Ice Cap, Bolivia, that spans the last 400 yr. The pollen record corroborates the oxygen isotopic and ice accumulation records from the Quelccaya Ice Cap and supports the scenario that the Little Ice Age (LIA) consisted of two distinct phases�"a wet period from AD 1500 to 1700, and a dry period from AD 1700 to 1880. During the dry period xerophytic shrubs expanded to replace puna grasses on the Altiplano, as suggested by a dramatic drop in the Poaceae/Asteraceae (P/A) pollen ratio. The environment around Sajama was probably similar to the desert-like shrublands of the Southern Bolivian Highlands and western Andean slopes today. The striking similarity between the Sajama and Quelccaya proxy records suggests that climatic changes during the Little Ice Age occurred synchronously across the Altiplano. |
format |
Article in Journal/Newspaper |
author |
Liu, Kam-biu Reese, Carl A. Thompson, Lonnie G. |
spellingShingle |
Liu, Kam-biu Reese, Carl A. Thompson, Lonnie G. Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr |
author_facet |
Liu, Kam-biu Reese, Carl A. Thompson, Lonnie G. |
author_sort |
Liu, Kam-biu |
title |
Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr |
title_short |
Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr |
title_full |
Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr |
title_fullStr |
Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr |
title_full_unstemmed |
Ice-Core Pollen Record of Climatic Changes in the Central Andes during the last 400 yr |
title_sort |
ice-core pollen record of climatic changes in the central andes during the last 400 yr |
publisher |
Cambridge University Press (CUP) |
publishDate |
2005 |
url |
http://dx.doi.org/10.1016/j.yqres.2005.06.001 http://api.elsevier.com/content/article/PII:S0033589405000797?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589405000797?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400027277 |
long_lat |
ENVELOPE(163.917,163.917,-78.133,-78.133) |
geographic |
The Altiplano |
geographic_facet |
The Altiplano |
genre |
Ice cap ice core |
genre_facet |
Ice cap ice core |
op_source |
Quaternary Research volume 64, issue 2, page 272-278 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2005.06.001 |
container_title |
Quaternary Research |
container_volume |
64 |
container_issue |
2 |
container_start_page |
272 |
op_container_end_page |
278 |
_version_ |
1811639499231330304 |