气候变化领域集成服务门户(CCPortal): Multi-proxy records of Holocene hydroclimatic and environmental changes on the southern coast of South Korea

CCPortal

DOI	10.1016/j.palaeo.2020.109642
	Multi-proxy records of Holocene hydroclimatic and environmental changes on the southern coast of South Korea
	Lee E.; Yi S.; Lim J.; Kim Y.; Jo K.-N.; Kim G.Y.
发表日期	2020
ISSN	0031-0182
卷号	545
英文摘要	A well-dated sediment core from the Goheung area of the southern coast of the Korean Peninsula was used to reconstruct the history of environmental and vegetation changes in response to variability in the East Asian summer monsoon (EASM) and the sea-level change during the Holocene. A multi-proxy analysis (palynomorphs, mean grain size, TOC, TS, C/N ratio, and δ13CTOC data) indicated that the study area underwent a change in environment from a fluvio-coastal (a fluvial to intertidal zone) to a subtidal zone due to a sea-level rise at ca. 7500 cal yr BP. Since ca. 6000 cal yr BP, it has gradually returned to a brackish-dominant environment (intertidal zone) due to coastal regression, with a decrease in relative sea-level. Palynological data show that the climate of the southern coast of the Korean Peninsula underwent a gradual cooling trend after ca. 5900 cal yr BP, due to weakening EASM intensity in response to decreasing insolation in the Northern Hemisphere. Therefore, the long-term vegetation dynamics in this study area were controlled primarily by solar insolation–driven temperature changes during the Holocene. They were also associated with sea surface temperature (SST) changes in the western tropical Pacific (WTP). The vegetation dynamics (sharp reduction of broad-leaved trees and freshwater discharge indicators) in our study area indicate cold and dry climatic conditions since ca. 4500 cal BP, which may have been caused by the decreasing SST in the WTP. In addition, the strong link between the Holocene vegetation dynamics in the East Asian coastal area (especially, Quercus-Lepidobalanus and Pinus-Diploxylon) and SST variation in the WTP may suggest that the centennial-timescale recurring variations in EASM activity have been controlled by low-latitude ocean forcing induced by El Niño Southern Oscillation activity. © 2020 Elsevier B.V.
英文关键词	Climate oscillation; Depositional environment; ENSO; Korean Peninsula; Palynomorph; Solar insolation
语种	英语
scopus关键词	biostratigraphy; cooling; depositional environment; discharge; environmental change; freshwater; Holocene; insolation; palynomorph; sea surface temperature; sediment core; vegetation dynamics; Pacific Ocean; Pacific Ocean (Tropical); Pacific Ocean (West); South Korea; Quercus
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150561
作者单位	Kangwon National University, Chuncheon, 24341, South Korea; Korea Institute of Geoscience and Mineral Resources, Daejeon, 34132, South Korea; Korea University of Science and Technology, Daejeon, 34113, South Korea
推荐引用方式 GB/T 7714	Lee E.,Yi S.,Lim J.,et al. Multi-proxy records of Holocene hydroclimatic and environmental changes on the southern coast of South Korea[J],2020,545.
APA	Lee E.,Yi S.,Lim J.,Kim Y.,Jo K.-N.,&Kim G.Y..(2020).Multi-proxy records of Holocene hydroclimatic and environmental changes on the southern coast of South Korea.Palaeogeography, Palaeoclimatology, Palaeoecology,545.
MLA	Lee E.,et al."Multi-proxy records of Holocene hydroclimatic and environmental changes on the southern coast of South Korea".Palaeogeography, Palaeoclimatology, Palaeoecology 545(2020).