Climate and environmental changes for the past 44 ka clarified by pollen and algae composition in the Ulleung Basin, East Sea (Japan Sea)

Chen, Jinxia; Liu, Yanguang; Shi, Xuefa; Suk, Bong-Chool; Zou, Jianjun; Yao, Zhengquan

doi:10.1016/j.quaint.2016.09.052

Cited by 15 publications

(8 citation statements)

References 96 publications

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“…-The warm GI 1 (Bølling-Allerød interstadial -BA) is indicated by a peak in Quercus pollen and a significant increase in Polypodiaceae spores. A high percentage of Polypodiaceae spores is also seen in cores from the southern part of the Japan Sea (Verkhovskaya et al 1992;Chen et al 2017). In South Korea, a sharp increase in Polypodiaceae percentages marks the onset of deglaciation (Chung et al 2006(Chung et al , 2010.…”

Section: Discussionmentioning

confidence: 95%

“…Ephedra pollen is present constantly in samples, but its percentages are small. The taxon is also present in other cores from the Japan Sea (Verkhovskaya et al 1992;Gorbarenko et al 1995;Markov et al 2008;Ikehara & Oshima 2009;Evstigneeva & Naryshkina 2010Chen et al 2017;Igarashi et al 2018). In contrast, Kawahata & Ohshima (2004) noted that Ephedra pollen is never present in modern terrestrial environments in coastal regions of China, Taiwan, Korea or Japan.…”

Section: Discussionmentioning

confidence: 96%

“…data (Keigwin & Gorbarenko 1992;Tada et al 1999;Bahk et al 2000;Irino & Tada 2000;Tada 2004;Ikehara & Itaki 2007;Khim et al 2007Khim et al , 2008aKhim et al , b, 2009Lee 2007;Watanabe et al 2007;Lim et al 2011;Gorbarenko et al 2014Gorbarenko et al , 2015Ishihama et al 2014), and palaeontological evidence (Oba et al 1991;Gorbarenko & Southon 2000;Kim et al 2000;Itaki et al 2004Itaki et al , 2007Domitsu & Oda 2006;Kido et al 2007;Rybiakova et al 2013;Igarashi et al 2018). The palynological study of late Quaternary sediments from the Japan Sea began in the 1960s and has continued to the present (Koreneva 1961;Morley et al 1986;Verkhovskaya et al 1992;Gorbarenko et al 1995Gorbarenko et al , 2014Gorbarenko et al , 2015Markov et al 2008;Ikehara & Oshima 2009;Evstigneeva & Naryshkina 2010Chen et al 2017). Based on a study of cores from islands surrounding the Japan Sea (Taiwan, Japan and Sakhalin), the first synthesis of millennial-scale variability in vegetation records was obtained for this region (Takahara et al 2010).…”

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confidence: 99%

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Millennial‐scale environmental changes in the northwestern Japan Sea during the last glacial cycle

Евстигнеева

Cherepanova

Gorbarenko

et al. 2020

Boreas

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High-resolution analyses of pollen and diatoms in core LV 53-29 from the northwestern Japan Sea trace climate, vegetation and oceanographic changes during the past 120 ka. The age model for the core was based on tephrochronology, colour lightness and magnetic susceptibility and was used to aid correlation with Dansgaard-Oeschger cycles (warm Greenland interstadials (GIs) and cold Greenland stadials (GSs)). The palynological and diatom data from this core record the changing influences of the East Asian monsoon, eustatic fluctuations in sea level, and the impact of variations in the direction and intensity of marine currents. Increases in Quercus and Cryptomeria pollen reflect GIs. The highest values of Cryptomeria were recorded during Marine Isotope Stage (MIS) 5 and were associatedwith an increase in the intensityof the summer monsoon. The increase in Larix pollen is an indicatorof GSs, and it occurs in all marine isotopic stages. Changes in diatom records indicate that oceanographic conditions in the northwestern Japan Sea differed from its southern and eastern regions. An increase in the cold-water and polyhalobous Rhizosolenia hebetata indicates GIs, although the surface water temperatures were colder than today with normal salinity. Species of the genus Chaetoceros, which is characteristic of GSs, were abundant during MIS 2. The predominance of Chaetoceros taxa and the high total abundance of diatoms may reflect regional upwelling conditions. The absence of brackish-water species at this time indicates a slight freshening of the surface water. The study of pollen, spores and diatoms in sediments from the northwestern Japan Sea illustrates the great potential of these proxies for identifying abrupt climate oscillations preserved in high-temporal resolution marine records, particularly those related to interstadial and stadial conditions.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 96%

mentioning

confidence: 99%

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Millennial‐scale environmental changes in the northwestern Japan Sea during the last glacial cycle

Евстигнеева

Cherepanova

Gorbarenko

et al. 2020

Boreas

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“…To confirm the glacial period in question in this study, we identified cold-arid climate indicator species, such as Picea , Abies , Pinus-Haploxylon , and Artemisia . The conifers Picea , Abies , and Pinus-Haploxylon inhabit the subalpine zone inland of northern East Asia, tolerate cold and arid climate conditions, and are well-known indicators of cold-dry climate conditions 28 – 32 . Moreover, the xerophytic herb pollen of Artemisia inhabits the open grasslands inland under cold and arid climate conditions and is used as an indicator of arid climate conditions 33 , 34 .…”

Section: Resultsmentioning

confidence: 99%

“…( d ) LR04 stacks of benthic foraminiferal δ 18 O values 38 . ( e ) Pollen concentrations of cold climate indicators from Northern East Asia; sum of Abies , Picea , and Pinus-Haploxylon 28 – 32 . ( f ) Concentration of xerophytic herb pollen of Artemisia 33 , 34 .…”

Section: Discussionmentioning

confidence: 99%

New findings on palynofacies characteristics of semi-enclosed deep-sea environments in the East Sea over 2 million years

Kim

Jun

et al. 2020

Sci Rep

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Phytoclasts in the form of plant debris in terrestrial sediments can be transported by water to distant areas because they are lighter than inorganic particles. The semi-enclosed East Sea, which is connected by narrow straits to other seas, is adjacent to continental shelves that are the source area of terrestrial sediment flowing into the East Sea. These shelves alternated repeatedly between terrestrial and marine environments as a result of eustatic sea-level changes during the Late Quaternary. Palynofacies analyses of the IODP Exp. 346 U1430 core, located in the Eastern South Korea Plateau (ESKP) of the East Sea, have revealed changes in the size and concentration of phytoclasts associated with glacial–interglacial cycles. These changes are generally negatively correlated with the global sea-level curve, and their anti-phase cycles with high amplitude are clearly evident during the last ca. 750 ka with the geotectonic stabilization period. In particular, several coarse-grained phytoclasts were observed during the glacial period, including the Last Glacial Maximum (LGM). These findings suggest that the concentration and size of phytoclasts flowing into the East Sea were influenced by changes in the distance of the source area, depending on the water depth of the strait and nearby shelves owing to sea-level changes in tandem with glacial–interglacial cycles and geotectonic events.

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Influence of climate factors on the global dynamic distribution of Tsuga (Pinaceae)

Xiao,

Li,

Huang

et al. 2024

Ecological Indicators

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Climate and environmental changes for the past 44 ka clarified by pollen and algae composition in the Ulleung Basin, East Sea (Japan Sea)

Cited by 15 publications

References 96 publications

Millennial‐scale environmental changes in the northwestern Japan Sea during the last glacial cycle

Millennial‐scale environmental changes in the northwestern Japan Sea during the last glacial cycle

New findings on palynofacies characteristics of semi-enclosed deep-sea environments in the East Sea over 2 million years

Influence of climate factors on the global dynamic distribution of Tsuga (Pinaceae)

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