Climatic variations over the last 4000 cal yr BP in the western margin of the Tarim Basin, Xinjiang, reconstructed from pollen data

Simple item page
dc.contributor.authorZhao, Ken_AU
dc.contributor.authorLi, XQen_AU
dc.contributor.authorDodson, JRen_AU
dc.contributor.authorAtahan, Pen_AU
dc.contributor.authorZhou, XYen_AU
dc.contributor.authorBertuch, Fen_AU
dc.date.accessioned2020-06-11T01:10:56Zen_AU
dc.date.available2020-06-11T01:10:56Zen_AU
dc.date.issued2012-03-01en_AU
dc.date.statistics2020-05-26en_AU
dc.description.abstractThe nature of Holocene climate patterns and mechanisms in central Asia are open areas of inquiry. In this study, regional vegetation and climate dynamics over the last ca. 4000 years are reconstructed using a high resolution pollen record from the Kashgar oasis, on the western margin of the Tarim Basin, central Asia. Ephedra, Chenopodiaceae and Cannabaceae dominate the pollen assemblages, and Chenopodiaceae/Ephedra ratios and percentages of long-distance transported pollen taxa are used to infer regional variations in moisture and vegetation density. Three periods of increased humidity are identified, from ca. 4000–2620 cal yr BP, ca. 1750–1260 cal yr BP and ca. 550–390 cal yr BP and these periods coincide with the respective Holocene Bond Events 2, 1 and 0, which are reported in the North Atlantic. Any increase in strength, or southward migration, of the mid-latitude westerlies would result in more precipitation and meltwater on mountains surrounding the study site. Warm and dry conditions are detected between ca.1260 and 840 cal yr BP (AD 690–1110), and cool and wet conditions are detected between ca. 840 and 680 cal yr BP (AD 1110–1270), during the Medieval Warm Period (ca. AD 800–1200). The climate variations in the Kashgar region over the last 4000 years appear to have been dominated by changes to the westerly circulation system and glacier dynamics on surrounding mountains. However, the question of whether the Asian monsoon delivers precipitation to the western Tarim Basin, a region that is influenced by several climate systems, is still open to debate. © 2012 Elsevier B.V.en_AU
dc.identifier.citationZhao, K., Li, X., Dodson, J., Atahan, P., Zhou, X., & Bertuch, F. (2012). Climatic variations over the last 4000calyr BP in the western margin of the Tarim Basin, Xinjiang, reconstructed from pollen data. Palaeogeography, Palaeoclimatology, Palaeoecology, 321–322, 16-23. doi.org/10.1016/j.palaeo.2012.01.012en_AU
dc.identifier.govdoc9576en_AU
dc.identifier.issn0031-0182en_AU
dc.identifier.journaltitlePalaeogeography, Palaeoclimatology, Palaeoecologyen_AU
dc.identifier.pagination16-23en_AU
dc.identifier.urihttps://doi.org/10.1016/j.palaeo.2012.01.012en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9551en_AU
dc.identifier.volume321-322en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectQuaternary perioden_AU
dc.subjectClimatic changeen_AU
dc.subjectAsiaen_AU
dc.subjectWinden_AU
dc.subjectHumidityen_AU
dc.subjectPollenen_AU
dc.titleClimatic variations over the last 4000 cal yr BP in the western margin of the Tarim Basin, Xinjiang, reconstructed from pollen dataen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles