| Online-Ressource |
Verfasst von: | Hoàn, Đào-Trung [VerfasserIn]  |
| Fukumoto, Yu [VerfasserIn]  |
| Dương, Nguyễn-Thùy [VerfasserIn]  |
| Thành, Đinh-Xuân [VerfasserIn]  |
| Thái, Nguyễn-Đình [VerfasserIn]  |
| Unkel, Ingmar [VerfasserIn]  |
| Hướng, Nguyễn-Văn [VerfasserIn]  |
Titel: | Diatom-based indications of an environmental regime shift and droughts associated with seasonal monsoons during the Holocene in Biển Hồ maar lake, the Central Highlands, Vietnam |
Verf.angabe: | Hoàn Đào-Trung, Yu Fukumoto, Dương Nguyễn-Thùy, Thành Đinh-Xuân, Thái Nguyễn-Đình, Ingmar Unkela and Hướng Nguyễn-Văn |
E-Jahr: | 2024 |
Jahr: | March 14, 2024 |
Umfang: | 15 S. |
Illustrationen: | Illustrationen |
Fussnoten: | Gesehen am 24.06.2024 |
Titel Quelle: | Enthalten in: The Holocene |
Ort Quelle: | Los Angeles, Calif. [u.a.] : Sage, 1991 |
Jahr Quelle: | 2024 |
Band/Heft Quelle: | 34(2024), 7 vom: Juli, Seite 941-955 |
ISSN Quelle: | 1477-0911 |
Abstract: | The interactions of the different monsoon systems across Southeast Asia create extreme climate phenomena. Central Vietnam, located near the centre of this transitional region, has encountered numerous effects. As a result, its sediments from lakes or speleothems are valuable archives for interpreting past climate variability. However, there is still a lack of high-resolution paleoenvironmental and palaeoclimatic reconstructions during the Holocene in Vietnam. Our study presents a paleoenvironmental diatom-based record of sediment cores collected from Biển Hồ maar lake (14°03′N, 108°00′E) in the Central Highlands of Vietnam covering nearly the entire Holocene. Based on changes in diatom assemblages in the sediment sequence, we identified two periods of the Early Holocene (~11,700-7800 cal BP) and the Mid- to Late-Holocene (~7800-360 cal BP), which mark a remarkable shift in the environment around Biển Hồ. Alternations of key diatom species during the Early Holocene indicate intensity variations between water-mixing and thermal stratification mechanisms in meso-eutrophic conditions. During the Mid- to Late-Holocene, the complete dominance of Aulacoseira granulata var. granulata implies year-round destratification and intense mixing of the lake water column in a permanently eutrophic environment. Its morphological variability reveals intervals of dry environmental conditions driven by pronounced droughts across the Asian continent. |
DOI: | doi:10.1177/09596836241236342 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1177/09596836241236342 |
| DOI: https://doi.org/10.1177/09596836241236342 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1892075210 |
Verknüpfungen: | → Zeitschrift |
Diatom-based indications of an environmental regime shift and droughts associated with seasonal monsoons during the Holocene in Biển Hồ maar lake, the Central Highlands, Vietnam / Hoàn, Đào-Trung [VerfasserIn]; March 14, 2024 (Online-Ressource)