Millennial-scale East Asian Summer Monsoon variability recorded in grain size and provenance of mud belt sediments on the inner shelf of the East China Sea during mid-to late Holocene

Wang, Ke; Zheng, Hongbo; Tada, Ryuji; Irino, Tomohisa; Zheng, Yan; Saito, Keita; Karasuda, Akinori

doi:10.1016/j.quaint.2014.09.014

Cited by 42 publications

(28 citation statements)

References 59 publications

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“…kyr BP. This is consistent with the EASM estimated from the inner shelf of the East China Sea (Wang et al 2014). Therefore, a broad northward shift of the westerly jet, in association with strengthened EASM, could have fostered a relatively warm climate at 6.0-4.2 cal.…”

Section: Temperature Change In Relation To the Intensity Of The Asiansupporting

confidence: 88%

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Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Kawahata

2019

Prog Earth Planet Sci

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The Jōmon period/culture corresponds to the Neolithic period/culture in Japanese prehistory. The Sannai-Maruyama site (5.9-4.2 cal. kyr BP), the most famous, the largest, and the well-studied mid-Holocene (mid-Jōmon) archeological site inhabited by hunter-gatherers with sedentary lifestyle in northern Japan, started at early Bond event 4 and collapsed at late Bond event 3 (4.2 cal. kyr BP at the boundary between mid-Holocene, Northgrippian, and late-Holocene, Meghalayan), synchronous with the decline of the north Mesopotamian civilization and the Yangtze River civilization in China. Alkenone sea surface temperatures (SSTs), a proxy for early-midsummer SSTs, generally suggest that the early-midsummer SSTs (and atmospheric temperatures (ATs)) at 41°00′ N, 140°46′ E, about 20 km north to the Sannai-Maruyama site, located in Aomori Prefecture, peaked around 4.8-4.3 cal. kyr BP and showed minima at 5.9 and 4.1 cal. kyr BP. In spite of some discrepancy in short periods, this feature is consistent with that estimated from the assemblages of Ostracodas. δ 18 O value of benthic foraminifera of Nonionellina labradorica and Nonionella stella, alkenone production flux, and pollen assemblages could reflect annual-based temperature, which generally suggests that the climate was warmer at 6.0-4.2 cal. kyr BP, which could show the warmer environments at 6.0-5.0 cal. than expected from alkenone SST in early-midsummer. Overall, northward shift of the westerly jet, in association with a strengthened East Asian Summer Monsoon, could cause a relatively warm climate around 6.0-4.3 cal. kyr BP, when the Sannai-Maruyama site flourished. High food production density, by effective hansaibai (selective preservation or growth) in Castanea-and Aesculus-dominated forests, up to one sixth of the rice production density, could have supported high population density, resulting large community at the Sannai-Maruyama site. Cooling episode at 4.2 cal. kyr BP could have resulted in the decline of chestnut hansaibai, leading to the collapse of the site. Recent results from a compiled archeological site map suggested no large decline of the population but, instead, a dispersal to the surrounding area at 4.2 cal. kyr BP. It is consistent with ancestral population dynamics for the descendent from Jōmon people, in contrast to those from the immigrants from Far East Asia to the Japanese Archipelago with paddy rice cultivation technology after 2.9 cal. kyr BP, based on modern Japanese molecular sequences.

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Section: Temperature Change In Relation To the Intensity Of The Asiansupporting

confidence: 88%

“…There were periods of drought between 6.2 and 5.9 cal. yr BP along the middle and lower reaches of the Yangtze in China (Wang and Huang 2006;Wang et al 2014). The environmental record from Qinghai Lake indicated that a relatively stable, warm, and humid climate at 5.83-4.90 cal.…”

Section: Temperature Change In Relation To the Intensity Of The Asianmentioning

confidence: 99%

Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Kawahata

2019

Prog Earth Planet Sci

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“…The warm and saline Kuroshio Current (KC) enters the ECS along the eastern coast of Taiwan and the mainstream flows northeast along 200 m isobaths ( Fig. 1) (Yang et al 1992;Chen et al 1994;Chang and Isobe 2003;Liu et al 2007;Wang et al 2014).…”

Section: Regional Settingmentioning

confidence: 99%

“…The provenance of sediment as well as paleoenvironmental changes on the inner shelf of the ECS have been well studied (Zheng et al 2010;Wang et al 2014;Liu et al 2014;Yang et al 2015;Bi et al 2017;Fang et al 2018;Liu et al 2018). In this study, we conducted provenance discrimination using the electron spin resonance (ESR) signal intensity and crystallinity index (CI) of quartz, which has been successfully applied to modern surface samples to trace eolian dusts from various deserts in western China (Sun et al 2007(Sun et al , 2013, to core sediment recovered from the Japan Sea to trace dust provenance changes in association with the southward-northward shifts of the Westerly Jet (WJ) (Nagashima et al 2007(Nagashima et al , 2011(Nagashima et al , 2012(Nagashima et al , 2013 and to characterize suspended particulate matter (SPM) collected from various segments of the Yangtze River drainage (Saito et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Provenance changes in fine detrital quartz in the inner shelf sediments of the East China Sea associated with shifts in the East Asian summer monsoon front during the last 6 kyrs

Wang

Tada

Zheng

et al. 2020

Prog Earth Planet Sci

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The inner shelf sediments of the East China Sea (ECS) preserve valuable information regarding climatic changes on land through detrital material discharged from large rivers, particularly the Yangtze River. In this paper, we examine the provenance changes of fine-grained detrital quartz preserved in the sediment of the MD06-3040 core retrieved from the mud belt on the inner shelf of the ECS during the last 6 kyrs. The provenance of the fine silt fraction (4-16 μm) of the sediments, which is considered to represent the suspended particulate matter (SPM) from the Yangtze River, is estimated based on the electron spin resonance (ESR) signal intensity and crystallinity index (CI) of quartz. By comparing the ESR signal intensity and CI of quartz in the fine silt fraction of sediments to those from different parts of tributaries in the modern Yangtze River drainage, we can discriminate the SPM sourced from the northwestern and southeastern tributaries of the Yangtze River. Shifts in the East Asian summer monsoon (EASM) front are monitored by changes in the main precipitation areas which are manifested as changes in source rock ages and types implied from the ESR signal intensity and CI of quartz in the fine silt fraction of the studied sediments discharged from the Yangtze River. Temporal changes in provenance of the fine silt fraction through time suggest that shifts in the main location of EASM precipitation (most likely representing the EASM front) occurred at a multi-centennial-to-millennial scale with the deepest northwestward penetration of the EASM precipitation front (an enhanced EASM) occurring during the period 3.5-2.0 kyr BP and a southeastward retreat (a weak EASM) occurring during the periods 6.0-4.1 and 2.0-0 kyr BP.

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“…Moreover, more than 50,000 dams (including dams on farmers' fields and dams higher than 100 m) have been constructed in the Changjiang catchment since the 1950s, which has led to significant decreases of riverine sediment discharge and changes in the aquatic ecosystems (Yang et al, 2005(Yang et al, , 2011bZhang et al, 2014). Also, there has recently been an increase in the number of studies on historical reconstruction of eco-environmental evolution of the Changjiang Estuary and adjacent ECS shelf, including the history of eutrophication, phytoplankton community changes, hypoxia, Changjiang flooding and drought events, and the response to monsoons (Hu et al, 2014;Jiang et al, 2014;Li et al, 2011Li et al, , 2013Liu et al, 2015;Wang et al, 2014aWang et al, , 2014bZhao et al, 2012). However, little remains known about the relative importance of anthropogenic activities and regional climate variability on eco-environmental evolution in different areas of the Changjiang Estuary and adjacent ECS shelf.…”

Section: Introductionmentioning

confidence: 99%

Historical reconstruction of organic carbon inputs to the East China Sea inner shelf: Implications for anthropogenic activities and regional climate variability

Yao

Bianchi

et al. 2015

The Holocene

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A gravity core collected from the East China Sea (ECS) inner shelf was analyzed for elemental and stable isotopic composition, lignin-phenols, and sedimentary pigments to investigate changes of organic carbon (OC) inputs during the past two centuries. In particular, we examined the linkages between terrestrial and marine OC inputs with climate variability and anthropogenic activities. The decrease of terrestrial OC contribution (from 41% to 28%) and increasing diagenetic indices of lignin-phenols (P/(S + V): from 0.12 to 0.22; 3,5-Bd/V: from 0.03 to 0.09) after the 1970s were possibly attributed to intensified deforestation, dam construction, and channel erosion. Lignin content (Λ 8 ) ranged from 0.35 mg/100 mg OC to 6.92 mg/100 mg OC, with lower values corresponding to the worst flooding events in the Changjiang watershed and weaker East Asian Winter Monsoon (EAWM), while higher Λ 8 was more correlated to the strengthening of EAWM. This indicates that terrestrial inputs to Zhe-Min Coast are different from those in Changjiang Estuary during flooding events and strongly linked with regional climate variability. The total contents of sedimentary chloropigments (i.e. pheophorbide-a, pheophytin-a, pyropheophytin-a, sterol chlorin esters, and carotenol chlorin esters) ranged from 663.4 to 74.9 nmol g −1 OC, and decreased exponentially downwards. Sedimentary chloropigments that were used to document historical change of phytoplankton biomass were decoupled with historical changes of Changjiang riverine nutrient inputs but corresponded well to the fluctuation of regional climate variability. Higher phytoplankton biomasses usually were observed during positive phases of Pacific Decadal Oscillation (PDO) and/or warm El Niño-Southern Oscillation (ENSO) events, and lower algal biomass usually corresponded to the negative phase of PDO and/or cold ENSO events.

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Millennial-scale East Asian Summer Monsoon variability recorded in grain size and provenance of mud belt sediments on the inner shelf of the East China Sea during mid-to late Holocene

Cited by 42 publications

References 59 publications

Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Climatic reconstruction at the Sannai-Maruyama site between Bond events 4 and 3—implication for the collapse of the society at 4.2 ka event

Provenance changes in fine detrital quartz in the inner shelf sediments of the East China Sea associated with shifts in the East Asian summer monsoon front during the last 6 kyrs

Historical reconstruction of organic carbon inputs to the East China Sea inner shelf: Implications for anthropogenic activities and regional climate variability

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