Aeolian dust contribution to the formation of alpine soils at Amdo (Northern Tibetan Plateau)

Lin, Yongchong; Feng, Jing-Chun

doi:10.1016/j.geoderma.2015.05.012

Cited by 26 publications

(12 citation statements)

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“…Today, airborne dust is recognized as a factor affecting global radiation and warming (Stanhill, 2005;Carslaw et al, 2013;IPCC, 2013;Huang et al, 2009;Chen et al, 2013;Huang et al, 2014) and air quality in distant lands (Tsoar and Pye, 1987;Xu et al, 2007;Uno et al, 2009;Li et al, 2012). Deposition of airborne dust also plays a significant role in soil formation and biological diversity in arid and semi-arid regions (Simonson, 1995;Lin and Feng, 2015; Varga et al, 2016). An understanding of atmospheric dust sources, emissions and deposition is therefore essential to improve our knowledge of dust impact on regional air quality.…”

Section: Introductionmentioning

confidence: 99%

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

et al. 2017

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Abstract. Eolian dust transport and deposition are important geophysical processes which influence global biogeochemical cycles. Currently, reliable deposition data are scarce in central and east Asia. Located at the boundary of central and east Asia, Xinjiang Province of northwestern China has long played a strategic role in cultural and economic trade between Asia and Europe. In this paper, we investigated the spatial distribution and temporal variation in dust deposition and ambient PM 10

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Section: Introductionmentioning

confidence: 99%

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

et al. 2017

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“…Moreover, the relatively high elemental contents of Hf in the topsoil of K1 are indicative of aeolian input, as mentioned by many authors (Liator, ; Dahms, ; Küfmann, ; Muhs and Benedict, ; Munroe et al ., ; Újvári et al ., ; Lin and Feng, ; Geitner et al ., ; Schreib et al ., ; Waroszewski et al ., ). Also, the zirconium (Zr) and Ba contents are much higher in the topsoil than in subsoil horizons and point to a potential aeolian input.…”

Section: Discussionmentioning

confidence: 99%

Identifying slope processes over time and their imprint in soils of medium‐high mountains of Central Europe (the Karkonosze Mountains, Poland)

Waroszewski

Egli

Brandová

et al. 2018

Earth Surf Processes Landf

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Soils in mountainous areas are often polygenetic, developed in slope covers that relate to glacial and periglacial activities of the Pleistocene and Holocene and reflect climatic variations. Landscape development during the Holocene may have been influenced by erosion/solifluction that often started after the Holocene climatic optimum. To trace back soil evolution and its timing, we applied a multi‐methodological approach. This approach helped us to outline scenario of soil transformation. According to our results, some aeolian input must have occurred in the late Pleistocene. During that time and the early Holocene, the soils most likely had features of Cryosols or Leptosols. Physico‐chemical and mineralogical analyses have indicated that the material was denudated (between late Boreal to the Atlantic) from the ridge and upper‐slope positions forming a colluvium at mid‐slope positions. Later, during the Sub‐Boreal, mass wasting of the remains of silt material deposited at the end of the Pleistocene age on the ridge top seems to have occurred. In addition, the cool and moist conditions caused the deposition of a colluvium at the lower‐slope positions. The next phase was characterized by the transformation of Leptosols/Cambisols into Podzols at upper‐slope or shoulder positions and to Albic Cambisols at mid‐slope positions. During the Sub‐Boreal period, Stagnosols started to form at the lower part of the slope catena. Overall, the highest erosion rates were calculated at the upper‐slope position and the lowest rates at mid‐slope sites. Berylium‐10 (10Be) data showed that the Bs, BC/C were covered during the Holocene by a colluvium with a different geological composition which complicated the calculation of erosion or accumulation rates. The interpretation of erosion and accumulation rates in such multi‐layered materials may, therefore, be hampered. However, the multi‐methodological reconstruction we applied shed light on the soil and landscape evolution of the eastern Karkonosze Mountains. Copyright © 2017 John Wiley & Sons, Ltd.

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“…Loess materials are characterised by specific geochemical features that can be verified by a set of geochemical proxies (Rudnick and Gao 2003;Muhs and Benedict 2006;Feng et al 2011; Ahmed and Chandra 2013; Lin and Feng 2015;Waroszewski et al 2018a). To detect an aeolian impact on a soil, the immobile elements Zr and Hf are used; several studies have shown that soils formed from aeolian sediments, especially loess, are enriched in these elements (Ujvari et al 2008;Ahmed and Chandra 2013;Scheib et al 2014;Lin and Feng 2015;Waroszewski et al 2018a). Hf and Zr are indicative of aeolian processes because they are characterised by very low mobility under most environmental conditions, mainly because of their high stability and the resistance of their host minerals, zircon and baddeleyite (De Vos and Tarvainen 2006).…”

Section: Geochemical Analysis As a Proxy For Aeolian Silt Admixingmentioning

confidence: 99%

“…Clay illuviation is noticeable in a diagnostic (argic) horizon (Pasquini et al 2017). Due to the properties of aeolian silt, its admixture as an allochthonous material in a mountain ecosystem supports the processes of pedogenesis (Lin and Feng 2015). The soils located in the upper parts of the slopes were classified as Cambisols (GP1, GP2, PO1, PO2).…”

Section: Soil Formation In a Mountainous Area With An Aeolian Silt Inmentioning

confidence: 99%

“…Parent material directly influences soil-forming processes (Jenny 1941;Dokuchaev 1967;Mason et al 2016;Rodrigo-Comino et al 2018) because, via weathering, it slowly disintegrates, delivering a coarse or finer grained substrate for further alteration processes. The weathering of bedrock has long been considered to be the only, and most crucial, source of material for soil formation in mountainous environments (Romashkevich 1979;Wang et al 1997;Hahm et al 2014;Lin and Feng 2015;Kroyan 2017;Mazurek et al 2018). However, in recent years, attention has been paid to the impact of aeolian silt on mountainous soils, and there is an awareness of the fact that aeolian silts have often been covered by/ involved in slope deposits (Kufmann 2003;Schaetzl and Luehmann 2013;Feng et al 2014;Martignier et al 2015;Pasquini et al 2017;Gild et al 2018;Waroszewski et al 2018aWaroszewski et al , b, 2019.…”

Section: Introductionmentioning

confidence: 99%

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In situ weathering of rocks or aeolian silt deposition: key parameters for verifying parent material and pedogenesis in the Opawskie Mountains—a case study from SW Poland

et al. 2019

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Purpose The aims: (1) to investigate the role of the in situ weathering of bedrock in providing substrate for soil formation; (2) to evaluate the aeolian contribution to the mountainous soils in the vicinity of thick loess cover; and (3) to determine the influence of aeolian silt on further soil development. Materials and methods The sampled sites were arranged along the slope toposequence, where an aeolian/silt admixture possibly occurred. Each soil catena started at the top of a hill and ended at its foot. Such an arrangement of the soil profiles ensured the tracking of loess thickness variations and detection of the depth of the residuum-derived materials. One reference soil profile, consisting of aeolian silt deposits, was made. The following soil properties were determined: pH, organic carbon content, soil texture, exchangeable acidity, exchangeable ions and geochemistry. In addition, thin sections were prepared from rock samples to confirm the type of bedrock present. Results and discussion The soils in the studied area were classified as Cambisols, Luvisols and Stagnosols, characterised by silt loam texture and a high content of elements indicating an aeolian silt contribution-Hf (7.4 to 14.8 ppm) and Zr (274.4 to 549.0 ppm). These values differ strongly from the residues typical of weathered quartzite, greywacke or catalasite substrates, which generally have low concentrations of Hf and Zr (0.7 to 7.0 ppm and 26.0 to 263 ppm, respectively). Based on the morphological, textural and geochemical data of the studied soils, three layers were distinguished, which show different inputs of aeolian silt: (1) an aeolian silt mantle; (2) a mixed zone in which loess was incorporated into the local material; and (3) a basal zone, free of the influence of aeolian silt. Based on the obtained results, a hypothetical pathway for soil formation in mountainous areas, influenced by aeolian silt admixing, was proposed. Conclusions Our study demonstrates that the soils developed in the Opawskie Mountains are characterised by an aeolian silt influence. This differentiates them from weakly developed soils, which comprise materials formed during in situ weathering only. Materials originating from bedrock weathering did not play an independent role as the parent material for the studied pedons. Aeolian silt was admixed with already existing autochthonous substrates, or completely replaced them. This influence on the soil formation resulted in the occurrence of Luvisols, Stagnosols and Cambisols. Such soils cannot be formed from the weathering of quartzites and greywackes, which contribute to a less structure-forming medium.

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Aeolian dust contribution to the formation of alpine soils at Amdo (Northern Tibetan Plateau)

Cited by 26 publications

References 62 publications

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

Identifying slope processes over time and their imprint in soils of medium‐high mountains of Central Europe (the Karkonosze Mountains, Poland)

In situ weathering of rocks or aeolian silt deposition: key parameters for verifying parent material and pedogenesis in the Opawskie Mountains—a case study from SW Poland

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Aeolian dust contribution to the formation of alpine soils at Amdo (Northern Tibetan Plateau)

Cited by 26 publications

References 62 publications

Dust deposition and ambient PM&lt;sub&gt;10&lt;/sub&gt; concentration in northwest China: spatial and temporal variability

Dust deposition and ambient PM&lt;sub&gt;10&lt;/sub&gt; concentration in northwest China: spatial and temporal variability

Identifying slope processes over time and their imprint in soils of medium‐high mountains of Central Europe (the Karkonosze Mountains, Poland)

In situ weathering of rocks or aeolian silt deposition: key parameters for verifying parent material and pedogenesis in the Opawskie Mountains—a case study from SW Poland

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Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability