Orbital‐ and millennial‐scale climate and vegetation changes between 32.5 and 6.9k cal a BP from Hanon Maar paleolake on Jeju Island, South Korea

Abstract

Orbital‐ and millennial‐scale climate and vegetation changes between 32.5 and 6.9k cal a BP from Hanon Maar paleolake on Jeju Island, Korea, were demonstrated by high‐resolution multi‐proxy data (pollen, magnetic susceptibility, total organic carbon, carbon/nitrogen ratios and sediment grain size). High‐resolution pollen records provided detailed information on the vegetation response to climate change. The Thalictrum pollen percentage, which corresponded to the magnetic susceptibility data, and the first principal component of principal‐component analysis of pollen data were good indicators of the orbital‐ and millennial‐scale dry/wet cycle in the study area. Hanon pollen and magnetic susceptibility records suggested that colder and drier conditions were prevalent between 25.2 and 17.6k cal a BP in the study area due to a precession‐induced decrease in summer insolation. Hanon multi‐proxy data were correlated with oxygen isotope records from Greenland and Hulu cave, suggesting the possible teleconnection of millennial‐scale climate oscillations between North Atlantic and East Asian regions. According to our results, Heinrich‐like cold events probably occurred around 31.1, 25.2 and 16.7k cal a BP, and the warm intervals observed around 30.7 and 29.9k cal a BP may have corresponded to Dansgaard–Oeschger warm events 4 and 3, respectively.

Vegetation response to abrupt climate changes in Western Europe from 45 to 14.7k cal a BP: the Bergsee lacustrine record (Black Forest, Germany)

“…Abbott et al, 2010); Finkenbinder et al, 2015;Fischer et al, 2015), Asia (e.g. Park et al, 2014) and Europe (e.g Guiter et al, 2003;Feurdean et al, 2014;Birks and Birks, 2014;Pickarski et al, 2015).…”

Late Quaternary East Asian Summer Monsoon Variability Deduced From Lacustrine Mineral Magnetic Records of Dahu Swamp, Southern China

“…Severe dry and cold climate in this period might have led to an interruption of sedimentation in the swamp, which probably resulted from the low summer insolation coupled with low sea level and declined land‐sea thermal contrast over East Asia. Severe dry climate during the LGM has been reported by various natural archives in EASM region (An et al, ; Lu et al, ; Park et al, ; Wang et al, ). Zhao et al () also found that there were very few basal dates of peat initiation corresponding to LGM across monsoonal China due to the very low summer insolation.…”

Mid-to-late Holocene climate variability in coastal East Asia and its impact on ancient Korean societies

“…The frequency of Botryococcus is sometimes a very good climate-sensitive indicator of aquatic productivity 25 . It has been particularly useful in paleoenvironmental studies of sediment cores from Jeju Island 20 , 21 , 75 , 76 . A pollen diagram was produced using TILIA 77 .…”