A 13,000-year peatland palaeohydrological response to the ENSO-related Asian monsoon precipitation changes in the middle Yangtze Valley

Liu, Hongye; Huang, Xianyu; Yu, Zicheng; Xie, Shucheng; Cheng, Shujie

doi:10.1016/j.quascirev.2019.03.034

Cited by 71 publications

(39 citation statements)

References 59 publications

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“…Such a pattern is also evident in subtropical East Asia (20-27 • N, 110-125 • E) precipitation in the TraCE−21ka simulations (Xu et al, 2020). This pattern is also supported by several paleoclimate records from the middle Yangtze Valley which indicate wet conditions during the early and late Holocene, but dry conditions during the middle Holocene (Xie et al, 2013;Huang X. et al, 2018;Liu et al, 2019). However, these records are inconsistent with other proxy records from the same sites, including a pollen record from the Dajiuhu peatland (Zhu et al, 2010) and a stalagmite δ 18 O record from Heshang Cave (Hu et al, 2008).…”

Section: Introductionsupporting

confidence: 68%

Holocene East Asian Summer Monsoon Rainfall Variability in Taiwan

Ding

Zheng

et al. 2020

Front. Earth Sci.

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Characterizing the spatiotemporal variability of the East Asian summer monsoon (EASM) advances our understanding of its rhythm, dynamics, and future impacts. East Asian summer monsoon variations during the Holocene have been reconstructed from a variety of geological archives and proxies. However, the spatiotemporal heterogeneity of EASM rainfall during the Holocene remains controversial. Taiwan is geographically suitable for studying the EASM history, through its geological archives. Herein, we synthesize the reported lake and peat sedimentary records of the entire Holocene, in addition to the records of mass-wasting and on-land deposition from cores collected from Taiwan to illustrate the EASM induced hydroclimate changes in Taiwan throughout the Holocene. Records from Taiwan indicate that the EASM rainfall maximum occurred during the early Holocene, concurring with other EASM records from monsoon regions in southern China. We suggest that the early Holocene EASM rainfall maximum in southern China was mainly forced by the higher Northern Hemisphere summer insolation and sea surface temperatures (SSTs) in the Western Pacific Warm Pool (WPWP). A synthesis of EASM rainfall records from across China shows that the timing of the Holocene EASM rainfall maximum occurred progressively later than that from southern to northern China. This time-transgressive EASM rainfall maximum may be due to the latitudinal shift of the westerlies and Western Pacific subtropical high (WPSH) that was induced by changes of interhemispheric temperature gradients (T N−S) and the northern high latitude ice volume. Moreover, records from Taiwan suggest a significant collapse of the EASM in Taiwan at ∼4-2 ka BP. Based on the records from Taiwan, coastal East Asia, and the Tropical Pacific, we propose that the SSTs of the WPWP and/or El Niño-Southern Oscillation activity may have exerted a strong influence on the EASM rainfall changes during the late Holocene. Moreover, increased EASM rainfall in southern China during the last 2 ka was likely caused by a southward shift of WPSH, which is associated with gradual decreases in T N−S during the late Holocene.

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Section: Introductionsupporting

confidence: 68%

Holocene East Asian Summer Monsoon Rainfall Variability in Taiwan

Ding

Zheng

et al. 2020

Front. Earth Sci.

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“…The duration of weak precipitation is discrepant between the various records from the YRV; nevertheless it is clear that the interval of weakest Holocene precipitation in the YRV occurred during the mid‐Holocene (~8.0–3.0 ka). Although several pollen records from the YRV indicated that the late Holocene was the driest period (Innes et al ., 2014; Ma et al ., 2016; Li et al ., 2018; Lu et al ., 2019; Sun et al ., 2019), various other types of proxy have demonstrated that the driest conditions were in the mid‐Holocene: for example, geochemical elements (this study), hopanoids (Xie et al ., 2013), phytoliths (Liu et al ., 2018b), and magnetic properties (Zhu et al ., 2017). Although it is likely that the mid‐Holocene was the driest period in the YRV, more work is needed to resolve the issue.…”

Section: Discussionmentioning

confidence: 99%

“…In the YRV, it is still debated whether or not the δ 18 O record of stalagmites directly reflects precipitation amount (Chen et al ., 2016; Liu et al ., 2017b), and there are few studies of Holocene paleoprecipitation in this area. Hopanoid and phytolith records from the Dajiuhu peatland indicated that the mid‐Holocene was the driest period of the Holocene (Xie et al ., 2013; Liu et al ., 2018b). This dry mid‐Holocene is supported by an environmental magnetic record from speleothems from Heshang Cave (Zhu et al ., 2017); however, other records from the YRV indicated the late Holocene was the driest period (Innes et al ., 2014; Ma et al ., 2016; Li et al ., 2018; Lu et al ., 2019; Sun et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Dipolar mode of precipitation changes between north China and the Yangtze River Valley existed over the entire Holocene: Evidence from the sediment record of Nanyi Lake

Liu

Shen

Chen

et al. 2020

Intl Journal of Climatology

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Instrumental data indicate the occurrence of a dipolar pattern of precipitation anomalies between north China and the Yangtze River Valley (YRV), which was termed “northern drought (flood)—southern flood (drought)” scenario. It has been shown that this pattern occurred during the Medieval Climate Anomaly (MCA) and the Little Ice Age (LIA). However, there are questions about whether this dipolar pattern also occurred during the entire Holocene, and the mechanism responsible. Addressing these questions is of fundamental importance for understanding the spatiotemporal evolution of precipitation in East Asian summer monsoon region. Numerous studies of north China have demonstrated that the mid‐Holocene was humid, and the early and late Holocene were dry. However, there are relatively few equivalent studies in the YRV. To this end, we conducted detailed geochemical analysis of an AMS 14C‐dated sediment core from Lake Nanyi in the YRV. Our results indicate humid periods at Lake Nanyi occurred during 11.5–8.0 ka and from 2.0 ka to the present, while dry conditions occurred during ~8.0–2.0 ka. These results, together with published records from Dajiuhu peatland and Heshang Cave, collectively indicate in the YRV, the mid‐Holocene (~8.0–3.0 ka) was dry, while the early and late Holocene were humid, which is the inverse of the pattern in north China. Thus, we conclude there was an asynchronous evolution of hydroclimatic changes between north China and the YRV during the Holocene. We interpret this dipolar pattern as the result of ENSO variations: in a La Niña‐like state, the Western Pacific Subtropical High retreated northeastward, which would enable the rainfall belt to move northward and result in increased (decreased) precipitation in north China (the YRV). Sea surface temperature records from the Pacific Ocean and model simulations support this mechanism: a La Niña‐like state in the mid‐Holocene resulted in more (less) precipitation in north China (the YRV).

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“…bp , the decreasing solar radiation reduced the SSTs of the Western Pacific Warm Pool (WPWP) (Figure 8f, g) (Chang et al ., 2000; Laskar et al ., 2004; Stott et al ., 2004; Ding et al ., 2009; Zhang et al ., 2019a). The Western Pacific Subtropical High (WPSH) migrated northward because of the weak El Niño/Southern Oscillation (ENSO) during this period (Figure 8h, j) (Moy et al ., 2002; Sun et al ., 2005; Chu et al ., 2014; Liu et al ., 2019). But the relative sea level increased to the present level and remained stable (Figure 8i) (Zhao et al ., 1979).…”

Section: Discussionmentioning

confidence: 99%

“…bp , the minimum summer solar radiation further reduced the SSTs of the WPWP (Figure 8f, g) (Laskar et al ., 2004; Stott et al ., 2004; Zhang et al ., 2019a). More frequent ENSO activities caused a southward of WPSH (Figure 8h, j) (Xie et al ., 2009; Chen et al ., 2015; Liu et al ., 2019). Consequently, the frequent ENSO activities superimposed on the decreasing effects of the summer insolation, shortened the EASM rainfall in northern China during this period (Figure 8e) (Ding et al ., 2009; Lu et al ., 2019).…”

Section: Discussionmentioning

confidence: 99%

Lake–mire ecosystem transformation and its possible forcing mechanisms in volcanic landform regions: a case study in the Gushantun peatland of northeast China

Zhang

et al. 2020

Earth Surf Processes Landf

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Large numbers of peatlands were developed in volcanic landform regions, which would provide valuable long-term records of lake-mire ecosystem shifts and act as significant carbon pool in regional carbon cycle. To investigate lake-mire ecosystem transformations and driving mechanisms in volcanic landform regions, the developmental history of Gushantun peatland in northeast China was reconstructed in this study. Results indicate that Gushantun peatland initiated in the deepest portions of the basin, and subsequently experienced expansions outward. Peat initiated from approximately 12kacal. BP to present. The developmental patterns of Gushantun peatland can be divided into four stages: the stable stage 1 (12-10kacal. BP), maximum stage (10-7kacal. BP), stable stage 2 (7-4kacal. BP) and stable stage 3 (4-0kacal. BP). The possible forcing mechanisms for the development of Gushantun peatland were different during different periods. From 12kacal. BP to 10kacal. BP, autogenic process was probably the major controlling factor for the expansion of this peatland. From 10 to 7kacal. BP, flat basin morphology was the major influence factor for fast expansion. However, the development of Gushantun peatland was probably controlled by the dual effects of high moisture and autogenic process during the period of 7 to 4kacal. BP. From 4kacal. BP to present, steep basin morphology was the major influence factor, while moisture might be the secondary factor for development of Gushantun peatland. These features indicate that lake-mire ecosystem transforms in volcanic landform regions of Changbai Mountains were probably triggered by the complex effects of autogenic process, hydroclimate and underlying basin morphology.

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A 13,000-year peatland palaeohydrological response to the ENSO-related Asian monsoon precipitation changes in the middle Yangtze Valley

Cited by 71 publications

References 59 publications

Holocene East Asian Summer Monsoon Rainfall Variability in Taiwan

Holocene East Asian Summer Monsoon Rainfall Variability in Taiwan

Dipolar mode of precipitation changes between north China and the Yangtze River Valley existed over the entire Holocene: Evidence from the sediment record of Nanyi Lake

Lake–mire ecosystem transformation and its possible forcing mechanisms in volcanic landform regions: a case study in the Gushantun peatland of northeast China

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