Spore-pollen-climate factor transfer function and paleoenvironment reconstruction in Dajiuhu, Shennongjia, Central China

Zhu, Cheng; Xing, Chen; Zhang, Guangsheng; Ma, Chao; Zhu, Qing; Li, Zhongxuan; Xu, Weifeng

doi:10.1007/s11434-008-5011-x

Cited by 50 publications

(45 citation statements)

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“…1 and 2D-2F), although these are lower resolution records and based on outdated analytical methods and calibrations that might underestimate the extent of temperature change (De Jonge et al, 2014). The Hani temperature variation is also larger than the temperature change suggested by the pollen record from the Dajiuhu peat, located much farther to the south (Zhu et al, 2008; Fig. 1).…”

Section: Discussionmentioning

confidence: 93%

Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China

Zheng

Pancost

Liu

et al. 2017

Geology

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Variations in atmospheric circulation across the last deglaciation in the northernmost monsoon-influenced regions of Asia are not well constrained, highlighting a fundamental gap in our understanding of Asian climate. Here we reconstruct continental air temperatures for northeast China across the last deglaciation (past 16 k.y.), based on the distribution of bacterial branched glycerol dialkyl glycerol tetraethers in a sequence of the Hani peat (Jilin Province, northeast China). Our results indicate large (as much as 10 °C) oscillations in temperature in northeast China across the deglaciation, oscillations significantly larger than observed in other temperature records from low-latitude or same-latitude East Asia, but consistent with climate model simulations. This enhanced magnitude, as well as the timing of temperature variations, provides evidence for atmospheric teleconnections with high latitudes; in particular, we suggest that highlatitude cooling associated with Arctic ice expansion and changes in Atlantic Meridional Overturning Circulation enhanced the intensity and lowered the temperature of Eurasian mid-latitude westerlies and northwesterly winds over East Asia during the last glacial, delivering cold air masses to northeast China. During the deglaciation the westerlies and therefore delivery of cold air masses weakened, amplifying the deglacial warming in this region. We conclude that changes in North Atlantic climate had a particularly strong impact on the northernmost parts of the East Asian monsoon-influenced area.

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Section: Discussionmentioning

confidence: 93%

Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China

Zheng

Pancost

Liu

et al. 2017

Geology

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“…The sample pro-treatment is the same as that of ref. [5]. Pollen percentage content of stratum and surface samples in Dajiuhu, Shennongjia are used in this paper.…”

Section: Methodsmentioning

confidence: 99%

“…According to the spatial distribution function of temperature in Dajiuhu, Shennongjia and pollen-climatic transfer function by stepwise regression technique [5] , 10 selected pollen factors in this function are Abies, Betula, Compositae, Cruciferae, Euphorbiaceae, Campanulaceae, Pyrrosia, Pteris, Selaginella and Monolites, respectively, in which only 2 woody pollens Abies and Betula belong to high grade plants. Other 8 pollens belong to herb and fern.…”

Section: Study Approachesmentioning

confidence: 99%

“…2) Dividing 55 kinds of pollen into two parts of tree (29 families) and herb (26 categories, including fern), and to construct climatic transfer function T2 (with tree pollen only) and T3 (with herb and fern only) for each part by stepwise multiple regression techniques, respectively. 3) Using three functions, T1, T2, T3 and pollen climatic factor transfer function [5] to reconstruct temperature series, and compare these temperature series with the reconstructed temperatures of ref. [19], and Greenland temperature series [20,21] .…”

Section: Study Approachesmentioning

confidence: 99%

“…It means that the pollen from different families or categories has different responses to the climate factors, and there is no efficient way to select pollen factors and determine its correct percentage in the 51 total samples in transfer function building, and the different methods might lead to different results [3] . In this paper, we use pollen percentage content from stratum [4] and surface [5] pollen samples and meteorological data in Dajiuhu Shennongjia to build pollen-temperature transfer functions [5] . By comparing the reconstructed temperature series since the late glacial of Dajiuhu Shennongjia, we analyzed the climatic sensitivity of pollen factors in the transfer function and estimated the relationships between percentage content of different pollen types and their climatic sensitivity.…”

mentioning

confidence: 99%

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Sensitivity of pollen factors in the climate transfer function

Chen

Zhu

et al. 2008

Sci. Bull.

Self Cite

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Evolution of Peatlands in the Mu Us Desert, Northern China, Since the Last Deglaciation

Liu

et al. 2018

JGR Earth Surface

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Climatic reconstruction from peat deposits is an important aspect of Quaternary research. Previous studies of the peatlands in the Mu Us Desert in northern China have focused on the processes of paleoclimatic evolution, but the history of peatland development remains unclear due to the absence of comparative studies. Here we present a synthesis of the available records documenting peatland development within the Mu Us Desert since the last deglaciation. We combine paleoclimatic records from profiles from two new sites with previously published results from 12 sites. Our aim is to reconstruct the temporal and spatial record of peatland development and to determine its driving forces. The results show that the peatlands developed in two phases: from ~15 ka until the early Holocene and from 6.5–3 ka when there was a significant expansion of their spatial extent. These phases correspond to two distinct types of paludification process, and both were closely related to changes in the East Asian monsoon. A final stage after 2 ka resulted from the significant weakening of the monsoon, during which peat accumulation ceased.

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Spore-pollen-climate factor transfer function and paleoenvironment reconstruction in Dajiuhu, Shennongjia, Central China

Cited by 50 publications

References 4 publications

Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China

Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China

Sensitivity of pollen factors in the climate transfer function

Evolution of Peatlands in the Mu Us Desert, Northern China, Since the Last Deglaciation

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