A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia
Under the influence of various circulation systems, the Holocene humidity conditions on the Mongolian Plateau are spatially heterogeneous and the underlying mechanism is still ambiguous. The complexity of climate change may affect the accuracy of assessing lake ecosystem evolution. In this study, ba...
Published in: | Insects |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI AG
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3390/insects13050461 https://doaj.org/article/44d0b4b85bdf43808ca42d331548bf99 |
id |
ftdoajarticles:oai:doaj.org/article:44d0b4b85bdf43808ca42d331548bf99 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:44d0b4b85bdf43808ca42d331548bf99 2023-05-15T17:57:50+02:00 A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia Zhenyu Ni Enlou Zhang Sangheon Yi Weiwei Sun Xianqiang Meng Dongliang Ning Jin Cheul Kim 2022-05-01T00:00:00Z https://doi.org/10.3390/insects13050461 https://doaj.org/article/44d0b4b85bdf43808ca42d331548bf99 EN eng MDPI AG https://www.mdpi.com/2075-4450/13/5/461 https://doaj.org/toc/2075-4450 doi:10.3390/insects13050461 2075-4450 https://doaj.org/article/44d0b4b85bdf43808ca42d331548bf99 Insects, Vol 13, Iss 461, p 461 (2022) chironomid subfossil functional traits paleoenvironmental reconstruction Westerlies Central Asia Science Q article 2022 ftdoajarticles https://doi.org/10.3390/insects13050461 2022-12-30T23:55:02Z Under the influence of various circulation systems, the Holocene humidity conditions on the Mongolian Plateau are spatially heterogeneous and the underlying mechanism is still ambiguous. The complexity of climate change may affect the accuracy of assessing lake ecosystem evolution. In this study, based on the precise chronology, a chironomid assemblage sequence from the Darhad Basin in northern Mongolia is analyzed to elucidate the hydroclimate variation during the early-middle Holocene. The results show that the chironomid communities changed suddenly from littoral taxa to sublittoral/profundal taxa at about 9 cal kyr BP, reflecting an environmental transition from a river or shallow lake condition to a deep lake environment. Thereafter, most parts of the paleolake remained at a relatively high level until 4.5 cal kyr BP. This hydrological pattern resembles the typical humidity variations in the Westerlies affected regions, except that the onset of wetter conditions occurred one thousand years earlier as reflected in our results. The melting of glaciers and permafrost in the basin resulting from the early increased summer solar insolation could be a feasible explanation for these time advances. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Insects 13 5 461 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
chironomid subfossil functional traits paleoenvironmental reconstruction Westerlies Central Asia Science Q |
spellingShingle |
chironomid subfossil functional traits paleoenvironmental reconstruction Westerlies Central Asia Science Q Zhenyu Ni Enlou Zhang Sangheon Yi Weiwei Sun Xianqiang Meng Dongliang Ning Jin Cheul Kim A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia |
topic_facet |
chironomid subfossil functional traits paleoenvironmental reconstruction Westerlies Central Asia Science Q |
description |
Under the influence of various circulation systems, the Holocene humidity conditions on the Mongolian Plateau are spatially heterogeneous and the underlying mechanism is still ambiguous. The complexity of climate change may affect the accuracy of assessing lake ecosystem evolution. In this study, based on the precise chronology, a chironomid assemblage sequence from the Darhad Basin in northern Mongolia is analyzed to elucidate the hydroclimate variation during the early-middle Holocene. The results show that the chironomid communities changed suddenly from littoral taxa to sublittoral/profundal taxa at about 9 cal kyr BP, reflecting an environmental transition from a river or shallow lake condition to a deep lake environment. Thereafter, most parts of the paleolake remained at a relatively high level until 4.5 cal kyr BP. This hydrological pattern resembles the typical humidity variations in the Westerlies affected regions, except that the onset of wetter conditions occurred one thousand years earlier as reflected in our results. The melting of glaciers and permafrost in the basin resulting from the early increased summer solar insolation could be a feasible explanation for these time advances. |
format |
Article in Journal/Newspaper |
author |
Zhenyu Ni Enlou Zhang Sangheon Yi Weiwei Sun Xianqiang Meng Dongliang Ning Jin Cheul Kim |
author_facet |
Zhenyu Ni Enlou Zhang Sangheon Yi Weiwei Sun Xianqiang Meng Dongliang Ning Jin Cheul Kim |
author_sort |
Zhenyu Ni |
title |
A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia |
title_short |
A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia |
title_full |
A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia |
title_fullStr |
A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia |
title_full_unstemmed |
A Chironomid Record of Early-Middle Holocene Environmental Evolution in the Darhad Basin, Northern Mongolia |
title_sort |
chironomid record of early-middle holocene environmental evolution in the darhad basin, northern mongolia |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/insects13050461 https://doaj.org/article/44d0b4b85bdf43808ca42d331548bf99 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Insects, Vol 13, Iss 461, p 461 (2022) |
op_relation |
https://www.mdpi.com/2075-4450/13/5/461 https://doaj.org/toc/2075-4450 doi:10.3390/insects13050461 2075-4450 https://doaj.org/article/44d0b4b85bdf43808ca42d331548bf99 |
op_doi |
https://doi.org/10.3390/insects13050461 |
container_title |
Insects |
container_volume |
13 |
container_issue |
5 |
container_start_page |
461 |
_version_ |
1766166333904388096 |