Nonlagged Response of Vegetation to Climate Change During the Younger Dryas: Evidence from High‐Resolution Multiproxy Records from an Alpine Lake in Northern China

Zhang, Zhiping; Liu, Jianbao; Chen, Shengqian; Chen, Jie; Zhang, Shanjia; Xia, Huan; Shen, Zebang; Wu, Duo; Chen, Fahu

doi:10.1029/2018jd028752

Cited by 11 publications

(3 citation statements)

References 95 publications

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“…Previous studies have highlighted the importance of precipitation on changes in lake status (Peng et al, ; Shanahan et al, ). Precipitation in North China is mainly delivered by the EASM (Liu et al, ; Liu, Chen, et al, ; Zhang, Liu, et al, ; Zhou et al, ), and its evolution has been reconstructed in depth (Chen, Xu, et al, ). A 20‐year‐resolution, pollen‐based quantitative precipitation reconstruction has been produced, which provides a direct record of the evolution of the EASM since the last deglaciation (Chen, Xu, et al, ).…”

Section: Introductionmentioning

confidence: 99%

Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China

et al. 2020

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The late Holocene is generally regarded as an interval of monsoon recession and decreased precipitation in North China. However, the extent to which this affected the status of lakes in North China is unclear. In the study, we analyzed multiple proxies (δ13C, magnetic susceptibility [χlf], and exogenous element concentrations) from Lake Mayinghai, an undisturbed alpine lake in North China. We also compared the results with previously published paleoenvironmental records from the Chinese Loess Plateau. We aimed to determine the extent of the influence of variations in the East Asian summer monsoon (EASM) on the status of Lake Mayinghai during the late Holocene. The results demonstrate that negative δ13C values at Lake Mayinghai correspond to high sedimentary tree pollen content and high reconstructed precipitation, indicating that variations in δ13C likely reflect variations in vegetation and the EASM in North China. A comparison of the δ13C record with other proxies from the same core reveals an abrupt change in the EASM at ~3 kyr before present (BP), which is also evident in other regional climate records from the Chinese Loess Plateau. The rapid decline in EASM intensity at ~3 kyr BP is also consistent with changes in the status of Lake Mayinghai, Lake Gonghai, Lake Ganhai, and Lake Daihai, in that these lakes underwent an abrupt retreat after 3 kyr BP, demonstrating that the rapid decline in EASM intensity at ~3 kyr BP had a large impact on lake evolution in North China.

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Section: Introductionmentioning

confidence: 99%

Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China

et al. 2020

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“…During the YD cold period, however, the Atlantic Meridional Overturning Circulation (AMOC) weakened (McManus et al, 2004; Praetorius et al, 2008) and temperatures decreased significantly (Figure 7e). This would have reduced the precipitation in northern China (Chen et al, 2015; Zhang et al, 2018a; Figure 7c), which led to a fall in the level of Dali Lake (Figure 7a).…”

Section: Discussionmentioning

confidence: 99%

Lake level evidence for a mid-Holocene East Asian summer monsoon maximum and the impact of an abrupt late-Holocene drought event on prehistoric cultures in north-central China

et al. 2022

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Uncertainty regarding the timing of the highest Holocene water level of enclosed Dali Lake in northern China has led to controversy about whether the East Asian summer monsoon (EASM) peaked in the early Holocene or the mid-Holocene. Therefore, a record combining a reliable chronology with unambiguous lake level indicators is essential to resolve the issue. In this study, we established a temporal sequence of well-preserved paleolake shorelines at different elevations around Dali Lake using quartz optically stimulated luminescence (OSL) dating. Combining the new OSL-based chronological data with the previously published ages of beach ridges, we constructed an integrated lake level record for Dali Lake since the last deglaciation; the record is chronologically well-constrained and provides a clearer representation of lake level changes than previous studies. The main findings are as follows: (1) the level of Dali Lake rose gradually during 14.5–8.0 ka and reached a highest level during 8.0–6.0 ka that was ~61 m higher than today, before gradually declining after ~6.0 ka; (2) although the short-lived highstand of Dali Lake during the early Holocene was caused by both monsoon precipitation and snow/ice meltwater influx, the mid-Holocene lake level maximum was mainly the result of increased monsoon precipitation. These findings indicate that the EASM maximum in the region occurred during the mid-Holocene, which is supported by precipitation-proxy records from the EASM margin; (3) a major decline (~30 m) of the level of Dali Lake occurred at ~4.2 ka, reflecting a regional-scale drought event in northern China. Combined with near-contemporaneous frequent floods in the lower Yellow River, we propose that the pattern of “drought in northern China, flooding in central China” occurred during ~4.2–3.8 ka, triggering the migration of the prehistoric human population of the area to the central Plain of China. This population migration may have destabilized the existing social order and promoted the emergence of more complex societies, leading to the development of early civilization in north-central China.

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“…Although the increased precipitation may have wettened the biofuels making ignition more difficult, in the moisture-limited arid and semi-arid region of northern China, the water content of the biofuel may not have been a limiting factor for combustion (Ji et al, 2021). In this case and given that vegetation succession in northern China is closely related to the EASM precipitation (Chen et al, 2015;Huang et al, 2018;Zhang et al, 2018), we prefer to believe that the amount of biofuel controlled by the EASM precipitation was likely to be the dominant determinant of the regional fire dynamics on the millennial timescale during the Holocene (Wang et al, 2013;Ji et al, 2021). Regarding why fires occurred frequently in northern China against the background of a cold and dry climate that proposed in previous studies, it may be that the charcoal records of previous studies do not provide a high-resolution fire history; and it may also be due to the large chronological error of paleo-fire records existing in previous studies.…”

Section: Easm Intensity Controlled the Fire Occurrence In Northern Ch...mentioning

confidence: 99%

Anthropogenic origin of a change in the fire-climate relationship in northern China after ∼2000 yr BP: Evidence from a 15,500-year black carbon record from Dali Lake

et al. 2022

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There are debates regarding whether a wet and warm climate or a dry and cold climate dominated Holocene fire activity in northern China on the millennial timescale, and when human activities overtook climate change as the dominant control on fire occurrence in the region. Here we present a high-resolution fire history for the past ~15,500 years from a sediment core in Dali Lake, located in the foothills of the Greater Hinggan Mountains, one of the areas of highest fire risk in China. The results demonstrate that fire activity was rare during the last deglaciation (~15,500-11,700 yr BP), gradually increased at the beginning of the Holocene, and reached its highest level during ~9000-5000 yr BP, after which there was a decreasing trend. However, after ~2000 yr BP this decreasing trend ended, and the most prominent feature is a peak in fire activity during the Medieval Warm Period (MWP). Overall, fire activity corresponded well to changes in the East Asian summer monsoon (EASM) precipitation on the millennial timescale during ~15,500-2000 yr BP, but this relationship changed after ~2000 yr BP. We propose that fire activity in northern China on the millennial timescale during ~15,500-2000 yr BP was dominated by the biofuels reserve under the control of the EASM precipitation. In contrast, with the intensification of human activities after ~2000 yr BP, human activity caused a ~62%-73% increase in fire activity, which altered the fire-climate relationship that had previously prevailed in northern China. Our results indicate that a wet-warm climate (increased EASM intensity), rather than a dry-cold climate, was the

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Nonlagged Response of Vegetation to Climate Change During the Younger Dryas: Evidence from High‐Resolution Multiproxy Records from an Alpine Lake in Northern China

Cited by 11 publications

References 95 publications

Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China

Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China

Lake level evidence for a mid-Holocene East Asian summer monsoon maximum and the impact of an abrupt late-Holocene drought event on prehistoric cultures in north-central China

Anthropogenic origin of a change in the fire-climate relationship in northern China after ∼2000 yr BP: Evidence from a 15,500-year black carbon record from Dali Lake

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