Holocene cold events on the Tibetan Plateau

Mischke, Steffen; Zhang, Chengjun

doi:10.1016/j.gloplacha.2010.02.001

Cited by 145 publications

(76 citation statements)

References 50 publications

(70 reference statements)

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“…At the present day the EAM plays a significant role in the global and regional hydrological and energy cycles (Webster et al, 1998). It is suggested that fluctuations during the Holocene exerted a major influence on human societies (Shi et al 1994;Mischke and Zhang, 2010). For example, during the stable warm and wet phase from 7200 to 6000 cal yr BP, the Neolithic Yangshao Culture in the Yellow River catchment and the Majiabang Culture in the lower Yangtze plain, reached their climax (Shi et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Mid-Holocene variability of the East Asian monsoon based on bulk organic δ¹³C and C/N records from the Pearl River estuary, southern China

Zong

Lloyd

et al. 2011

The Holocene

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Understanding the mid-Holocene dynamics of the East Asian monsoon (EAM) is integral to improving models of the Holocene development of the global climate system. Here we reconstruct the mid-Holocene EAM history from the Pearl River estuary, southern China, using bulk organic carbon isotopes (δ13C), total carbon to total nitrogen (C/N) ratios and total organic carbon (TOC) concentration. Sedimentary δ13C, C/N and TOC are potentially good indicators of changes in monsoonal precipitation strength. Sediments buried during a period of high precipitation exhibit a high proportion of terrigenous material, and have low δ13C and high C/N, and vice versa during a period of low precipitation. Results suggest a general decreasing trend in monsoonal precipitation from 6650 to 2150 cal. yr BP because of the weakening Northern Hemisphere insolation most likely related to the current precession circle. Superimposed on this trend are apparent dry–wet oscillations at centennial to millennial timescales most likely in response to solar activity. Mismatches between our δ13C record and results from the Dongge Cave in southern China at millennial timescales may indicate that the δ13C from the Pearl River estuary reveals changes in precipitation over a broader area than the δ18O from Dongge Cave.

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Section: Introductionmentioning

confidence: 99%

Mid-Holocene variability of the East Asian monsoon based on bulk organic δ¹³C and C/N records from the Pearl River estuary, southern China

Zong

Lloyd

et al. 2011

The Holocene

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“…5. There were regional cooling events in 3.4 kaB.P., and it seems that our terrace suggests cold event as Ximencuo record (Mischke and Zhang, 2010). The phytolith combination in Lhasa Sangda was mainly the cold-type phytolith (Chen et al, 2008), and the climate was warm and cool.…”

Section: Climate Zone 480-280 CM (About 81-6 Kabp)mentioning

confidence: 67%

“…The cold event from the Ximencuo record between 5.9 and 5.5 cal kaB.P.. The δ 13 C and TOC were decreased at same time (Mischke and Zhang, 2010). In about 4.99 kaB.P., the climate turned warm and wet (Fig.…”

Section: Climate Zone 480-280 CM (About 81-6 Kabp)mentioning

confidence: 94%

Organic carbon isotope records of paleoclimatic evolution since the last glacial period in the Tangjia region, Tibet

et al. 2011

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We firstly present the description of the river terrace at Tangjia (唐家) Village in Lhasa, Tibet, collect soil samples, and select the climate indicators including δ 13 C, total organic carbon (TOC), and the Rb/Sr ratios to study its paleoclimate in this area. Ancient climate changes have been reconstructed since the last glacier period. The results show that the δ 13 C, TOC, and the Rb/Sr ratio are good indicators of ancient climate fluctuations. Paleoclimatic evolution in the Lhasa Tangjia region could be divided into seven stages. In stages II (11.7-10.2 kaB.P.) and IV (8.1-6.1 kaB.P.), δ 13 C was positive and TOC was high, indicating that the climates in these two stages were relatively warm and humid. In stages III (10.2-8.1 kaB.P.) and V (6.1-4.9 kaB.P.), δ 13 C showed cyclical fluctuations, but TOC exhibited less change, suggesting that the climates displayed variation on the millennial scale. Moreover, the climatic variations were on a century-long scale during the later Middle Holocene. Compared with δ 13 C from Sumxi Co (松木希错) and δ 18 O from the Guliya (古里雅) ice core, the study confirmed that four cold events occurred during the Holocene (9.4, 8.2, 5.4, and 4.2 kaB.P.). The climate indicators were limited to the river terrace based on the geological characteristics of the Lhasa region. Unexpectedly, δ 13 C was a sensitive indicator of climate change. KEY WORDS: organic carbon isotopes, TOC, paleoclimate, Lhasa.

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“…Although some proxies from lake sediments (Yu et al, 2006;Hong et al, 2009;Zheng et al, 2009;Mischke and Zhang, 2010), stalagmites (Wu et al, 2012;Cheng et al, 2009;Hu et al, 2008a;Wang et al, 2005;Dykoski et al, 2005), and marine sediments (Zheng et al, 2010;Ge et al, 2010) do record the 8.2 ka BP event in EAMA, only Hu et al (2008a) attempted a quantitative reconstruction of rainfall by using stalagmite δ 18 O records, which indicated a decrease in precipitation during the event in southwest China, an area influenced by East Asian monsoon. However, the resolution of this precipitation record is approximately 100 years and needs to be improved.…”

Section: Introductionmentioning

confidence: 99%

Quantification of southwest China rainfall during the 8.2 ka BP event with response to North Atlantic cooling

Yu-hui

2016

Clim. Past

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Abstract. The 8.2 ka BP event could provide important information for predicting abrupt climate change in the future. Although published records show that the East Asian monsoon area responded to the 8.2 ka BP event, there is no high-resolution quantitative reconstructed climate record in this area. In this study, a reconstructed 10-year moving average annual rainfall record in southwest China during the 8.2 ka BP event is presented by comparing two highresolution stalagmite δ 18 O records from Dongge cave and Heshang cave. This decade-scale rainfall reconstruction is based on a central-scale model and is confirmed by interannual monitoring records, which show a significant positive correlation between the regional mean annual rainfall and the drip water annual average δ 18 O difference from two caves along the same monsoon moisture transport pathway from May 2011 to April 2014. Similar trends between the reconstructed rainfall and the stalagmite Mg / Ca record, another proxy of rainfall, during the 8.2 ka BP period further increase the confidence of the quantification of the rainfall record. The reconstructed record shows that the mean annual rainfall in southwest China during the central 8.2 ka BP event is less than that of present by ∼ 200 mm and decreased by ∼ 350 mm in ∼ 70 years experiencing an extreme drying period lasting for ∼ 50 years. Comparison of the reconstructed rainfall record in southwest China with Greenland ice core δ 18 O and δ 15 N records suggests that the reduced rainfall in southwest China during the 8.2 ka BP period was coupled with Greenland cooling with a possible response rate of 110 ± 30 mm • C −1 .

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Holocene cold events on the Tibetan Plateau

Cited by 145 publications

References 50 publications

Mid-Holocene variability of the East Asian monsoon based on bulk organic δ¹³C and C/N records from the Pearl River estuary, southern China

Mid-Holocene variability of the East Asian monsoon based on bulk organic δ¹³C and C/N records from the Pearl River estuary, southern China

Organic carbon isotope records of paleoclimatic evolution since the last glacial period in the Tangjia region, Tibet

Quantification of southwest China rainfall during the 8.2 ka BP event with response to North Atlantic cooling

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Holocene cold events on the Tibetan Plateau

Cited by 145 publications

References 50 publications

Mid-Holocene variability of the East Asian monsoon based on bulk organic δ13C and C/N records from the Pearl River estuary, southern China

Mid-Holocene variability of the East Asian monsoon based on bulk organic δ13C and C/N records from the Pearl River estuary, southern China

Organic carbon isotope records of paleoclimatic evolution since the last glacial period in the Tangjia region, Tibet

Quantification of southwest China rainfall during the 8.2 ka BP event with response to North Atlantic cooling

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Mid-Holocene variability of the East Asian monsoon based on bulk organic δ¹³C and C/N records from the Pearl River estuary, southern China

Mid-Holocene variability of the East Asian monsoon based on bulk organic δ¹³C and C/N records from the Pearl River estuary, southern China

Quantification of southwest China rainfall during the 8.2 ka BP event with response to North Atlantic cooling