Holocene vegetation and hydrology variations and their associations with climate changes: a multi-proxy analysis of a sediment core from an alpine basin in the middle Tianshan Mountains

Yang, Yunpeng; Feng, Zhaodong; Ran, Min; Zhang, Dongliang; Lan, Bo; Sun, Anyang

doi:10.1007/s00382-021-05670-7

Cited by 7 publications

(2 citation statements)

References 76 publications

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“…Chen et al ( 5 ) suggested a persistent wetting trend in CA, with the wettest period in the late Holocene, as revealed by multiproxy analyses of loess-paleosol sequences in Xinjiang, China. This finding is consistent with the synthesized pollen records from northern Xinjiang and is well supported by other records of eolian deposition ( 6 ), peat and lake sediments ( 7 – 12 ), and stalagmites ( 13 ) from Xinjiang, China. However, most of the Holocene hydroclimate records in CA are from ECA ( 14 ), with their precipitation maximum in the summer half-year.…”

supporting

confidence: 91%

“…Stippling indicates regions of significant correlations at a 95% significance level. The star denotes Talisman cave ( 11 ), and other sites referred to in the text are denoted by solid circles. 1, Chaiwopu peat ( 7 ); 2 Lake Bosten ( 22 ); 3, Tielishahan peat ( 23 ); 4, Narenxia peat ( 9 ); 5, Lujiaowan loess ( 5 ); 6, Baluk cave ( 13 ); 7, Lake Aibi ( 24 ); 8, Kesang cave ( 25 , 26 ); 9, Lake Sayram ( 27 ); 10, Lake Son Kol ( 28 ); 12, Ton cave ( 26 ); 13, Lake Neor ( 29 ); 14, Katalekhor cave ( 30 ); 15, Jeita cave ( 31 ); and 16, Sofular cave ( 32 ) (see SI Appendix , Table S1 for detailed locations).…”

Section: Resultsmentioning

confidence: 99%

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Hydroclimatic changes on multiple timescales since 7800 y BP in the winter precipitation–dominated Central Asia

Tan,

Cheng,

et al. 2024

Proc. Natl. Acad. Sci. U.S.A.

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Central Asia (CA) is one of the world’s most significant arid regions, which is markedly impacted by global warming. A better understanding of the dynamical processes governing its Holocene climate variability is critical for a better understanding of possible future impacts of climate change in the region. To date, most of the existing CA paleoclimate records are from the summer precipitation–dominated eastern CA (ECA), with few records from the winter precipitation–dominated western CA (WCA). Here, we present a precisely dated (~6‰) and highly resolved (<4-y) record of hydroclimatic variations from the WCA covering the period between 7,774 and 656 y BP. Utilizing multiple proxies (δ 18 O, δ 13 C, and Sr/Ca) derived from a stalagmite from the Fergana Valley, Kyrgyzstan, we reveal a long-term drying trend in WCA, which is in contrast with the wetting trend in ECA. We propose that different responses of winter and summer westerly jets to seasonal solar insolation over the past 8,000 y may have resulted in an antiphased precipitation relationship between the WCA and ECA. Our data contain dominant quasiperiodicities of 1,400, 50 to 70, and 20 to 30 y, indicating close connections between the WCA climate and the North Atlantic. We further identified a series of droughts and pluvials on centennial-to-decadal timescales, which may have influenced regional societies and trans-Eurasian culture exchanges during historical and prehistorical times.

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