Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia
ABSTRACT Recent results indicate contrasting Holocene moisture histories at different elevations in arid central Asia (ACA). However, relatively little is known about Holocene temperature changes at different elevations. Here we report an independently dated peat brGDGTs‐based MBT' 5ME record f...
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crwiley:10.1002/jqs.3254 2024-06-02T08:13:06+00:00 Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia Rao, Zhiguo Guo, Haichun Cao, Jiantao Shi, Fuxi Jia, Guodong Li, Yunxia Chen, Fahu National Natural Science Foundation of China 2020 http://dx.doi.org/10.1002/jqs.3254 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3254 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3254 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 35, issue 8, page 1036-1045 ISSN 0267-8179 1099-1417 journal-article 2020 crwiley https://doi.org/10.1002/jqs.3254 2024-05-03T10:37:00Z ABSTRACT Recent results indicate contrasting Holocene moisture histories at different elevations in arid central Asia (ACA). However, relatively little is known about Holocene temperature changes at different elevations. Here we report an independently dated peat brGDGTs‐based MBT' 5ME record from the Narenxia peatland (NRX) in the southern Altai Mountains. The record suggests a long‐term warming trend since ~7.7 cal. kyr bp , with a warmer stage during ~7–5.5 cal. kyr bp , a cold stage during ~5.5–4 cal. kyr bp , and a warming trend over the last ~4 kyr. The long‐term warming trend indicated by the NRX MBT' 5ME record is largely consistent with Holocene temperature records from nearby sites covering an altitudinal range of ~1700–4100 m above sea level. This consistent long‐term warming trend at different elevations differs from the long‐term Holocene drying/wetting trends at high/low elevations of the Altai Mountains. We propose that the warming trend and consequent permafrost thawing at high elevations could have resulted in increased meltwater runoff, which would have contributed to the long‐term wetting trend at low elevations. Our findings potentially provide an improved understanding of regional climate change and associated water resource availability, with implications for their possible future status. Article in Journal/Newspaper permafrost Wiley Online Library Journal of Quaternary Science 35 8 1036 1045 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Recent results indicate contrasting Holocene moisture histories at different elevations in arid central Asia (ACA). However, relatively little is known about Holocene temperature changes at different elevations. Here we report an independently dated peat brGDGTs‐based MBT' 5ME record from the Narenxia peatland (NRX) in the southern Altai Mountains. The record suggests a long‐term warming trend since ~7.7 cal. kyr bp , with a warmer stage during ~7–5.5 cal. kyr bp , a cold stage during ~5.5–4 cal. kyr bp , and a warming trend over the last ~4 kyr. The long‐term warming trend indicated by the NRX MBT' 5ME record is largely consistent with Holocene temperature records from nearby sites covering an altitudinal range of ~1700–4100 m above sea level. This consistent long‐term warming trend at different elevations differs from the long‐term Holocene drying/wetting trends at high/low elevations of the Altai Mountains. We propose that the warming trend and consequent permafrost thawing at high elevations could have resulted in increased meltwater runoff, which would have contributed to the long‐term wetting trend at low elevations. Our findings potentially provide an improved understanding of regional climate change and associated water resource availability, with implications for their possible future status. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Rao, Zhiguo Guo, Haichun Cao, Jiantao Shi, Fuxi Jia, Guodong Li, Yunxia Chen, Fahu |
spellingShingle |
Rao, Zhiguo Guo, Haichun Cao, Jiantao Shi, Fuxi Jia, Guodong Li, Yunxia Chen, Fahu Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia |
author_facet |
Rao, Zhiguo Guo, Haichun Cao, Jiantao Shi, Fuxi Jia, Guodong Li, Yunxia Chen, Fahu |
author_sort |
Rao, Zhiguo |
title |
Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia |
title_short |
Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia |
title_full |
Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia |
title_fullStr |
Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia |
title_full_unstemmed |
Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia |
title_sort |
consistent long‐term holocene warming trend at different elevations in the altai mountains in arid central asia |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/jqs.3254 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3254 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3254 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Journal of Quaternary Science volume 35, issue 8, page 1036-1045 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.3254 |
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Journal of Quaternary Science |
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35 |
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8 |
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1036 |
op_container_end_page |
1045 |
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1800759758558330880 |