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Verfasst von:Hoàn, Đào-Trung [VerfasserIn]   i
 Fukumoto, Yu [VerfasserIn]   i
 Dương, Nguyễn-Thùy [VerfasserIn]   i
 Thành, Đinh-Xuân [VerfasserIn]   i
 Thái, Nguyễn-Đình [VerfasserIn]   i
 Unkel, Ingmar [VerfasserIn]   i
 Hướng, Nguyễn-Văn [VerfasserIn]   i
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

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