Holocene aeolian activity in the Dinggye area (Southern Tibet, China)

Pan, Meihui; Wu, Yue; Zheng, Yunpu; Tan, Liangcheng

doi:10.1016/j.aeolia.2013.10.005

Cited by 25 publications

(11 citation statements)

References 32 publications

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“…Grain-size distribution sensitively reflects the transport capacity of wind, it contains signals of past environmental and climate changes, reveals the development of palaeosoil, and implies sources and sinks of dust (Bagnold 1937;Tsoar 1986;Smith et al 1991;Lancaster 1995;Zheng et al 2009;Bao et al 2010;Zhang et al 2011). Therefore, it has been well studied both for individual sand dunes and for large sand seas (Watson 1986;Van Der Wal 1998;Livingstone et al 1999;Wang et al 2003;Pan et al 2014). The grain size is especially effective and easy for the study of dunes developed on slopes since aeolian activity on slopes is more complex and difficult than that on a horizontal surface (Iversen and Rasmussen 1999; Barrineau and Ellis 2013).…”

Section: Introductionmentioning

confidence: 99%

Grain-size distribution of surface sediments of climbing and falling dunes in the Zedang valley of the Yarlung Zangbo River, southern Tibetan plateau

Zhang

et al. 2018

J Earth Syst Sci

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Climbing and falling dunes are widespread in the wide valleys of the middle reaches of the Yarlung Zangbo River. Along a sampling transect running from northeast to southwest through 10 climbing dunes and two falling dunes in the Langsailing area, the surface sediments were sampled to analyse the grain-size characteristics, to clarify the transport pattern of particles with different grain sizes, and to discuss the effects of terrain factors including dune slope, mountain slope, elevation and transport distance to sand transport. Sand dunes on both sides of the ridge are mainly transverse dunes. Fine and medium sands were the main particles, with few very fine and coarse particles in the surface sediments. Particles >4.00Φ were blown upslope by suspension, particles 1.00−4.00Φ were mainly transported upslope by saltation with opposite change tendency, and particles <1.00Φ mainly moved by creep were found almost exclusively at the bottom of the slopes. As terrain factors, elevation and transport distance were more important factors influencing the distribution of grain size and particle fraction on dunes. Local winds observation might be helpful for the transport mechanism study of particles on climbing and falling dunes, while the wind data from nearby weather station was hardly helpful.

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Section: Introductionmentioning

confidence: 99%

Grain-size distribution of surface sediments of climbing and falling dunes in the Zedang valley of the Yarlung Zangbo River, southern Tibetan plateau

Zhang

et al. 2018

J Earth Syst Sci

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“…Several authors have provided evidence to support the hypothesis that the Early to Mid-Holocene and Late Holocene expansion of aeolian sands can be attributed to the southern plateau's cold and dry climate (Li et al, 2010;Liu, Song, et al, 2013;Pan et al, 2014). Summarizing data from nine sections in the southern Plateau, Li et al (2010) identified four climate stages in the Holocene: a warm and wet climate from 11.3 ka B.P.…”

Section: Southern Tibetan Plateaumentioning

confidence: 99%

“…Climatic interpretations of these aeolian archives are complex because the aeolian sediments appear to be mostly of local origin. More than 30 sections with aeolian sand, loess, fluvial deposits, colluvial deposits, lacustrine deposits, and paleosol sequences have been described (Jin et al, ; Kaiser et al, , ; Lai et al, ; Li et al, ; Pan et al, ; Sun et al, ).…”

Section: History Of Aeolian Activitymentioning

confidence: 99%

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High‐Altitude Aeolian Research on the Tibetan Plateau

Dong

Qian

et al. 2017

Reviews of Geophysics

100

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Aeolian processes and their role in desertification have been studied extensively at low elevations but have been rarely studied at high elevations in areas such as the Tibetan Plateau, where aeolian processes were active in the geologic past and remain active today. In this review, we summarize research that improves our understanding of aeolian processes on the Tibetan Plateau, including the distribution, characteristics, and provenance of aeolian sediments; the history of aeolian activity; aeolian geomorphology; and wind‐driven land degradation. Contemporary aeolian processes primarily occur in dry basins, in wide river valleys, on lakeshores, on mountain slopes, and on gravel pavements. Sediment characteristics suggest a local origin and provide interesting contrasts with those of China's Loess Plateau. The history of aeolian activity and its paleoclimatic implications, reconstructed based on aeolian archives, is short (mostly since the Late Glacial) and shows wide regional differences. Aeolian geomorphology is simple and suggests short formation time. Wind‐driven land degradation is less severe than previously thought, driven by different factors in different areas, and exhibited complex interactions with freeze‐thaw processes. Aeolian research has been conducted within the general framework of aeolian science but addresses issues specific to the Tibetan Plateau that arise due to the low air temperature, low air density, and the presence of a cryosphere. We propose six priorities for future research: aeolian physics, the effect of freeze‐thaw cycles, comparisons with other areas, regional differences, effects of wind‐driven land degradation, and integrated observation and monitoring.

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“…Local dust storms, sand dunes, and well-preserved aeolian sand and loess deposits are widespread in the southern TP (Li et al, 1999;Sun et al, 2007;Lai et al, 2009;Shen et al, 2012;Pan et al, 2014;Zhang et al, 2015;Li et al, 2016;Dong et al, 2017;Ling et al, 2019Ling et al, , 2020. Sun et al, (2007) dated loess deposits from several sites in the Yarlung Zangbo River (YZR) valley, southern TP, and found that aeolian deposits accumulated only after the last deglaciation and not during glacial periods.…”

Section: Introductionmentioning

confidence: 99%

Holocene aeolian activities linked to Indian summer monsoon in the middle reaches of the Yarlung Zangbo River

Zhang

et al. 2020

J. Geogr. Sci.

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Widespread aeolian deposits on the Tibetan Plateau (TP) have provided valuable palaeoclimatic information. However, the primary factors (e.g., climate factors, human activity, and vegetation cover) controlling aeolian deposition remain elusive. In this paper, we use a dataset that comprises new and published ages of Holocene aeolian sand and loess in the middle reaches of the Yarlung Zangbo River to identify the primary controlling factors and palaeoclimatic implications of aeolian deposition. Several intervals of enhanced aeolian accumulation centered at 8.5-7.8, 6.4-5.8, 4.5-4.0, 3.1-1.8, and 0.9 ka are identified, generally consistent with regional low rainfall events and weak Indian summer monsoon (ISM). This suggests that regional wetness, dominated by the ISM, may play a key role in modulating dust emissions and aeolian deposition on centennial timescales. Our results show that on centennial-to millennial-scales, ISM activity can be reconstructed by non-continuous aeolian deposits in the monsoon dominated TP.

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Holocene aeolian activity in the Dinggye area (Southern Tibet, China)

Cited by 25 publications

References 32 publications

Grain-size distribution of surface sediments of climbing and falling dunes in the Zedang valley of the Yarlung Zangbo River, southern Tibetan plateau

Grain-size distribution of surface sediments of climbing and falling dunes in the Zedang valley of the Yarlung Zangbo River, southern Tibetan plateau

High‐Altitude Aeolian Research on the Tibetan Plateau

Holocene aeolian activities linked to Indian summer monsoon in the middle reaches of the Yarlung Zangbo River

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