Hydrological and Climatic Changes in Deserts of China since the Late Pleistocene

Yang, Xiaoping; Scuderi, L. A.

doi:10.1016/j.yqres.2009.10.011

Cited by 160 publications

(78 citation statements)

References 61 publications

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“…Our stud ies of this al pine wet land suggests that there were more large flu vial dis charge events dur ing mid-Ho lo cene than dur ing the late Ho lo cene. These re sults were con sis tent with pre vi ous stud ies (Berg and Loutre, 1991;Wu et al, 2007) and suc cess fully ex plain the in flu ence of the Indian sum mer mon soon dur ing the early Ho lo cene and of the SE Asian sum mer mon soon and the wes ter lies dur ing the mid-Holo cene in the cen tre of the QTP (e.g., An et al, 2000;Fleitmann et al, 2003;Wang et al, 2005;Herzschuh, 2006;Chen et al, 2008;Yang and Scuderi, 2010).…”

supporting

confidence: 82%

Late Glacial and Holocene vegetation and climate history of an alpine wetland on the Qinghai–Tibetan Plateau

Liu

Chen

Lai

et al. 2013

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(2013) Late Gla cial and Ho lo cene veg e ta tion and cli mate his tory of an al pine wet land on the Qinghai-Ti betan Pla teau. Geo log i cal Quar terly, 57 (2): 261-268, doi: 10.7306/gq.1096 This study pro vides a veg e ta tion and cli mate his tory of an al pine wet land in the cen tre of China's Qinghai-Ti betan Pla teau (QTP) over the last 14.8 ka. High res o lu tion cli mate prox ies in clude veg e ta tion (pol len), geo chem i cal (Ba, Rb, d 13 C) and phys i cal (par ti cle size and mag netic sus cep ti bil ity) data; op ti cally stim u lated lu mi nes cence (OSL) and AMS ra dio car bon dating were used to re con struct the en vi ron men tal changes in the wet land eco sys tem. Based on phys i cal and geo chem i cal prox ies, the sucession di vided into five strati graphic units en com pass ing time in ter vals of 14. 76-14.31, 14.31-13.17, 13.17-4.47, 4.47-0.51 and 0.51-0 ka. The av er age sed i men ta tion rate of all these units was 0.098 mm/a. The study showed that this eco sys tem was sen si tive to cli mate change.

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supporting

confidence: 82%

Late Glacial and Holocene vegetation and climate history of an alpine wetland on the Qinghai–Tibetan Plateau

Liu

Chen

Lai

et al. 2013

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“…it is a key region for understanding past climatic change and environmental evolution studies because it is located in the transition zone between the Asian summer monsoon and the westerly winds in China (Wang et al, 2005;Yang et al, 2011;Li et al, 2015). Thus, it is an ideal region for studying changes in climate at different time scales (Yang and Scuderi, 2010;Li et al, 2016c;Wang et al, 2016). however, for lakes in the hinterland of deserts, which are not recharged by river runoff, sediment is only transported by the wind (Li et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Total organic carbon and its environmental significance for the surface sediments in groundwater recharged lakes from the Badain Jaran Desert, northwest China

Dong

Chen

et al. 2017

J Limnol

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Total organic carbon (ToC) content in lake sediments is typically used for the reconstruction of paleoenvironments. it remains uncertain, however, whether these sediment variables in lakes supplied by groundwater in the hinterland of the Badain Jaran Desert are applicable. Moreover, it is still uncertain whether the ToC content in these lakes can be used as a proxy to identify past climatic change and environmental evolution studies. in this study, the spatial distributions of the ToC contents and C/n ratios were analyzed for 109 surface sediment samples collected from five lakes without runoff recharge. The results revealed that the ToC content of the lake surface sediments was extremely low (0.03% -1.01%) and consisted of both allochthonous organic matter carried by wind, as well as autochthonous organic matter generated in the lakes. Within a lake, spatial differences in the amount of ToC found in surface sediments may be caused by several processes including bathymetry topography and wind-induced wave activity. in addition, wind-induced wave activity produces a higher ToC content, which is more pronounced in larger lakes (>0.21 km 2 ) with longer fetches. By contrast, in smaller lakes, organic matter accumulates in the deeper waters, but can be affected by many factors. it is therefore necessary to consider lake area when applying the ToC content of lake sediments for the reconstruction of a paleolake evolution. Furthermore, because the ToC content of lake sediments in hyper-arid regions is extremely low, and the organic matter may have multiple and varied sources, a single proxy (ToC) cannot be used to reconstruct lake evolution.

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“…Field investigations have shown that there have been clear climatic fluctuations accompanied by landscape changes and paleohydrological variations in the desert areas of western China during the Late Quaternary (e.g. Chen and Bowler, 1986;Thompson et al, 1989;Fang, 1991;Li and Shi, 1992;Owen et al, 1997;Lehmkuhl and Haselein, 2000;Zhang et al, 2000;Ye and Ji, 2001;Yang et al, 2003Yang et al, , 2011aYang and Scuderi, 2010), and in these areas presently under formation of sand dunes and desert plains, underlying relict gorges and alluvial fans are attributed to the local glacial maximum (Yang, 2001;Yang et al, 2004). Based on the gemorphological and sediment properties of the regional comparability, especially the low degree of weathering (Zhu and Yang, 2009), it is reasonable to attribute the relic forms of desert gorges and pediments in the margin of the Ejina Basin to the local glacial maximum of the last glaciation (LGM).…”

Section: Evidences From Pediments and Desert Gorgesmentioning

confidence: 99%

“…Northern China in Central Asia exhibits distinct variations in climate and hydrology during late Quaternary resulting in variation in the form and size of landscapes (Yang et al, 2010(Yang et al, , 2011a. Due to the absence of long and continuous sedimentary sequences in desert area, finding effective substitute in the deserts of world to understanding the Quaternary climatic history is still a difficult issue (Yang 2001;Yang et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Climate-Driven Landformof the Ejina Basin (NW China) in Central Asia and Its Paleoenvironmental Implications

Zhu¹

2015

ESR

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Though neotectonic activity is believed to be the major factor in the evolution of the topography of the Ejina Basin in Central Asia, detailed documentation and analysis of climatic landscape features and their environmental implications are lacking. The present study is a site-specific documentation of landforms developed in the wide part of the Ejina Basin, with the aim to identify the climatic landforms based on the method of climatic geomorphology and to evaluate its landscape evolution and response to palaeoclimate changes. The morphodynamics of older landscapes are recognized by making comparison with the present climate and its corresponding landscapes. Clear evidences testifying the basin-scale shifting and transformation of different morphoclimatic zones in the basin are observed, which prove that the main geomorphic unit is changed from an alluvial-lacustrine plain to a desert plain. The coexistence of diverse landscapes and the consequent geomorphodiversity in the basin should be a compound result of surficial processes other than glaciations. The climate and hydrological conditions of the basin during the last glaciation and during the Early Holocene were much better than at present, possibly having an average annual precipitation ranged between 60~350 mm on the basin during ca. 39-23 ka BP but great fluctuations during Holocene. The periods of lower aridity during the late Pleistocene in the bain could be induced by an increase of the westerlies and a weakening of the Asian winter monsoon on the arid areas of the central Asia.

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Hydrological and Climatic Changes in Deserts of China since the Late Pleistocene

Cited by 160 publications

References 61 publications

Late Glacial and Holocene vegetation and climate history of an alpine wetland on the Qinghai–Tibetan Plateau

Late Glacial and Holocene vegetation and climate history of an alpine wetland on the Qinghai–Tibetan Plateau

Total organic carbon and its environmental significance for the surface sediments in groundwater recharged lakes from the Badain Jaran Desert, northwest China

Climate-Driven Landformof the Ejina Basin (NW China) in Central Asia and Its Paleoenvironmental Implications

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