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Article ; Online: Hydrological response to climate change in a glacierized catchment in eastern Tien Shan, Central Asia

Yufeng Jia / Zhongqin Li / Hongkai Gao / Shengjie Wang / Meiping Sun / Puyu Wang

Journal of Hydrology: Regional Studies, Vol 51, Iss , Pp 101669- (2024)

2024

Abstract: Study region: The headwaters of Urumqi River basin located in eastern Tien Shan Study focus ...

Abstract	Study region: The headwaters of Urumqi River basin located in eastern Tien Shan Study focus: Glacier shrinkage in recent decades has caused the volume and timing of glacier-fed streamflow to change, which in turn has significantly impacted the water supply and ecological system in the vast arid land in Central Asia and drawn wide public attention. Based on a glacio-hydrologic degree-day model, the runoff mechanisms and processes of the glacier-fed catchment are revealed. New hydrological insights for the region: The study found that about 51 % glacier coverage of the Urumqi Glacier No.1 catchment (UG1C) generates approximately 76 % glacier runoff, indicating that glacier melt comprises a significant water resource in the region. The different ways that the glacier melts in response to temperature versus precipitation on a daily scale by changing glacier mass balance can effectively stabilize streamflow, showing a strong capacity of the glacier to naturally adjust streamflow beneficially to water utilization by those downstream. Based on the sensitivity of modelled runoff to glacier change by comparing simulations using constant glacier cover that accommodated dynamic changes in glacier area, we found that the maximum volume of ice melt runoff during the past four decades appeared during the period 1996–2019, most likely around 2010.
Keywords	Climate change ; Glacierized catchment ; Ice melt runoff ; Snowmelt runoff ; Glacio-hydrological model ; Physical geography ; GB3-5030 ; Geology ; QE1-996.5
Subject code	550 ; 910
Language	English
Publishing date	2024-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Evidence of elevation-dependent warming from the Chinese Tian Shan

L. Gao / H. Deng / X. Lei / J. Wei / Y. Chen / Z. Li / M. Ma / X. Chen / M. Liu / J. Gao

The Cryosphere, Vol 15, Pp 5765-

2021 Volume 5783

Abstract: ... amplification and altitude warming amplification) in the Chinese Tian Shan (CTM) were detected using a unique ...

Abstract	The phenomenon in which the warming rate of air temperature is amplified with elevation is termed elevation-dependent warming (EDW). It has been clarified that EDW can accelerate the retreat of glaciers and melting of snow, which can have significant impacts on the regional ecological environment. Owing to the lack of high-density ground observations in high mountains, there is widespread controversy regarding the existence of EDW. Current evidence is mainly derived from typical high-mountain regions such as the Swiss Alps, the Colorado Rocky Mountains, the tropical Andes and the Tibetan Plateau–Himalayas. Rare evidence in other mountain ranges has been reported, especially in arid regions. In this study, EDW features (regional warming amplification and altitude warming amplification) in the Chinese Tian Shan (CTM) were detected using a unique high-resolution (1 km , 6-hourly) air temperature dataset (CTMD) from 1979 to 2016. The results showed that there were significant EDW signals at different altitudes on different timescales. The CTM showed significant regional warming amplification in spring, especially in March, and the warming trends were greater than those of continental China with respect to three temperatures (minimum temperature, mean temperature and maximum temperature). The significance values of EDW above different altitude thresholds are distinct for three temperatures in 12 months. The warming rate of the minimum temperature in winter showed a significant elevation dependence ( p <0.01 ), especially above 3000 m . The greatest altitudinal gradient in the warming rate of the maximum temperature was found above 4000 m in April. For the mean temperature, the warming rates in June and August showed prominent altitude warming amplification but with different significance above 4500 m . Within the CTM, the Tolm Mountains, the eastern part of the Borokoonu Mountains, the Bogda Mountains and the Balikun Mountains are representative regions that showed significant altitude warming amplification on ...
Keywords	Environmental sciences ; GE1-350 ; Geology ; QE1-996.5
Subject code	550
Language	English
Publishing date	2021-12-01T00:00:00Z
Publisher	Copernicus Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Correlation Between brGDGTs Distribution and Elevation From the Eastern Qilian Shan

Hansheng Wang / Peng Gao / Rui Yang / Junsheng Nie / Bo Cao / Aifeng Zhou / Baotian Pan / Lin Chen / Tingjiang Peng

Frontiers in Earth Science, Vol

2022 Volume 10

Abstract: ... Qilian Shan of the northeastern Tibetan Plateau is a key place testing previous models regarding ... Qilian Shan with an elevation ranging from 2,055 to 3,300 m [MAAT = −15.50 + 49.55 × MBT′5ME (R2 = 0.89 ...

Abstract	A clear understanding of the uplift history of the Tibetan Plateau is the key for correctly understanding its uplift mechanisms and impacts on the Asian environment. However, consensus has not been reached regarding the uplift history of the Tibetan Plateau, especially because of lack of well-calibrated paleoaltimetry proxies and lack of knowledge of how to correctly apply them to the past. Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are a promising paleoaltimetry proxy because these large molecules tend to get preserved in sediments, and this proxy has a clear relationship with mean annual air temperature (MAAT), circumventing convoluted impact of precipitation or isotope variations on isotope-based paleoaltimetry proxies. As a result, many calibrations have been carried out linking brGDGTs with paleoelevation. Qilian Shan of the northeastern Tibetan Plateau is a key place testing previous models regarding the uplift model of the Tibetan Plateau. However, no modern calibration equation linking brGDGTs with MAAT is available. Here, we presented the first calibration equation between brGDGTs and MAAT from the eastern Qilian Shan with an elevation ranging from 2,055 to 3,300 m [MAAT = −15.50 + 49.55 × MBT′5ME (R2 = 0.89, p < 0.001, RMSE = 1.07°C)]. We further established the calibration between MBT′5ME-derived MAAT and elevation. This dataset lays the foundation to understand the uplift history and environmental variations of the northeastern Tibetan Plateau area.
Keywords	Qilian Shan ; brGDGTs ; MBT′5ME ; elevation ; paleo-altimeter ; calibration equation ; Science ; Q
Subject code	550
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Outlining tectonic inheritance and construction of the Min Shan region, eastern Tibet, using crustal geometry.

Xu, Xiao / Gao, Rui / Guo, Xiaoyu / Li, Wenhui / Li, Hongqiang / Wang, Haiyan / Huang, Xingfu / Lu, Zhanwu

Scientific reports

2017 Volume 7, Issue 1, Page(s) 13798

Abstract: ... homogeneous, and the tectonic significance of the Min Shan has been overshadowed by that of its more ... conspicuous neighbour, the Longmen Shan region. Here, we describe the crustal geometry of the Min Shan region ... crust mechanical decoupling within the Min Shan region; the Min Shan region is tectonically delineated ...

Abstract	The ongoing collision between India and Eurasia has created the Tibetan Plateau, which features high elevations and large crustal thicknesses. The easternmost portion of the plateau has long been a key region for studying the uplift mechanism of the Tibetan Plateau, especially after the 2008 Ms. 7.9 Wenchuan earthquake. However, previous studies have assumed that easternmost Tibet is tectonically homogeneous, and the tectonic significance of the Min Shan has been overshadowed by that of its more conspicuous neighbour, the Longmen Shan region. Here, we describe the crustal geometry of the Min Shan region using two newly obtained deep seismic reflection profiles. In this study, we identify an upper-lower crust mechanical decoupling within the Min Shan region; the Min Shan region is tectonically delineated by an inherited boundary fault zone, the Huya fault zone, which was responsible for triggering the 2017 Jiuzhaigou M 7.0 earthquake. Together with the gravity dataset and previous studies in this area, the outlined crustal geometry indicated that crustal-scale shortening at the eastern plateau margin is a primary mechanism driving uplift, although extensive uplift might have occurred due to the decoupled shortening between the upper and lower crust.
Language	English
Publishing date	2017-10-23
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-017-14354-4
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Crustal and Upper Mantle Structure of the Tien Shan Orogenic Belt From Full‐Wave Ambient Noise Tomography

Lü, Ziqiang / Gao, Haiying / Lei, Jianshe / Yang, Xiaotao / Rathnayaka, Sampath / Li, Cong

Journal of geophysical research. 2019 Apr., v. 124, no. 4

2019

Abstract: ... Shan orogenic belt, we construct a well‐defined shear wave velocity model of the crust and upper mantle ... Tien Shan. Lithosphere underthrusting could trigger intrusion of hot mantle material and partial ... uppermost mantle of the central Tien Shan. In contrast, the connected high‐velocity upper mantle structure ...

Abstract	In order to have a better understanding of the lithosphere formation and modification of the Tien Shan orogenic belt, we construct a well‐defined shear wave velocity model of the crust and upper mantle with full‐wave ambient noise tomographic method. High‐quality empirical Green's functions at periods of 7–200 s are extracted from the cross correlation of the vertical component of continuous seismic data at 108 stations during 2012–2014. Our tomographic results show remarkable velocity variations between and within the major tectonic units from the crust down to the upper mantle. We observe very slow upper crust beneath the Tarim and Junggar sedimentary basins. The interior of the Tarim Basin shows strong seismic heterogeneities. The high‐velocity mantle lithosphere of the Tarim Basin underthrusts northward toward the central Tien Shan. Lithosphere underthrusting could trigger intrusion of hot mantle material and partial melting, in correspondence with the prominent low‐velocity anomalies observed in the lower crust and uppermost mantle of the central Tien Shan. In contrast, the connected high‐velocity upper mantle structure from Tarim Basin across eastern Tien Shan to Junggar Basin may reflect the convergent effect between the Tarim and Junggar Basins, which consequently prevents the asthenosphere upwelling. We observe low‐velocity anomalies in the upper mantle of the western Tien Shan, indicating continental crust of the Eurasia lithosphere that has been subducted toward the western Tien Shan. The observed structural variations along the Tien Shan orogenic belt suggest different tectonic mechanisms for the lithosphere formation and modification of the three segments along strike.
Keywords	basins ; geophysics ; models ; research ; tectonics ; tomography ; China ; Eurasia
Language	English
Dates of publication	2019-04
Size	p. 3987-4000.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ISSN	2169-9313
DOI	10.1029/2019JB017387
Database	NAL-Catalogue (AGRICOLA)

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Article: Variations in the westerlies in Central Asia since 16 ka recorded by a loess section from the Tien Shan Mountains

Jia, Jia / Liu, Hao / Gao, Fuyuan / Xia, Dunsheng

Palaeogeography, palaeoclimatology, palaeoecology. 2018 Sept. 01, v. 504

2018

Abstract: ... glacial and Holocene loess deposits in the Tien Shan Mountains. The results indicate that the strength ...

Abstract	Central Asia comprises a vast area of arid terrain which has an important impact on the global climate system. Although still debated, the pattern of climatic variations in central Asia is regionally distinctive and does not appear to be strongly related to changes in insolation. To understand the climatic evolution of central Asia, as well as its forcing mechanisms, it is necessary to characterize variations in the Westerlies, which have had a major influence on climate change in the region. Past variations in the Westerlies are commonly reconstructed from records of the composition, grain-size and mass accumulation rate (MAR) of loess and the eolian component of lacustrine sediments which are commonly mixed by the signal of surface atmospheric circulation. Here we present the results of grain-size analysis of a section of last glacial and Holocene loess deposits in the Tien Shan Mountains. The results indicate that the strength of the Westerlies was weakest during the last deglacial and early Holocene (16–6 ka), strongest during the mid-Holocene (6–3.1 ka), and moderate during the late Holocene (3.1–0 ka). By comparison with an independent record of humidity, we propose that the Westerlies were an important driver of moisture variations in central Asia, with strong Westerlies circulation resulting in high precipitation and vice versa during the past 16 kyr.
Keywords	Holocene epoch ; atmospheric circulation ; climate ; climate change ; climatology ; glaciation ; humidity ; lacustrine sediments ; landscapes ; loess ; loess deposition ; mountains ; solar radiation ; Central Asia
Language	English
Dates of publication	2018-0901
Size	p. 156-161.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	417718-6
ISSN	0031-0182
ISSN	0031-0182
DOI	10.1016/j.palaeo.2018.05.021
Database	NAL-Catalogue (AGRICOLA)

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Book: Ling shan

Gao, Xingjian

(Lian jing wen xue ; 94 ; 聯經文學 ; 94)

2000

Author's details	Gao xing jian zhu
Series title	Lian jing wen xue ; 94 聯經文學 ; 94
Language	Chinese
Size	12, 563 S
Edition	初版
Publisher	Lian jing chu ban shi ye gong si
Publishing place	Tai bei
Document type	Book
ISBN	9570805196 ; 9789570805192
Database	Former special subject collection: coastal and deep sea fishing

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Article: The spatial distribution of precipitation and topography in the Qilian Shan Mountains, northeastern Tibetan Plateau

Geng, Haopeng / Baotian Pan / Bo Huang / Bo Cao / Hongshan Gao

Geomorphology. 2017,

2017

Abstract: ... the arid to semiarid Qilian Shan Mountains to examine the spatial correlation between topography and ...

Abstract	The mutual interrelation of orographic precipitation pattern and topography is key to understanding the competing role of tectonics and climate in landscape evolution. However, the relationship between precipitation and topography across arid to semiarid orogens has received little attention because of limited data availability. As a global successor to Tropical Rainfall Measuring Mission (TRMM), the Global Precipitation Measurement (GPM) extends precipitation measurements to mid- and high latitudes since 2014. In this study, we process one year of GPM precipitation with a spatial resolution of 0.1Â°Ã0.1Â° across the arid to semiarid Qilian Shan Mountains to examine the spatial correlation between topography and precipitation. Though short, this data set provides reasonable precipitation when compared with other weather station relevant estimates. We then use nine orogen-perpendicular swath profiles to examine the influence of topography on precipitation distribution through the range. The results show that precipitation variation displays a significant elevation control with precipitation peaks in the high elevation mountain interior. We further compare the GPM precipitation with elevation and local relief within each swath extent. The results show that precipitation uniformly increases with increasing elevation for nine swaths, which is consistent with the elevation-controlled precipitation pattern. We find precipitation and local relief are positively correlated for five swaths but not for the remaining four swaths. Based on published data for uplift and erosion, we suggest that the presence or absence of such a correlation indicates whether mountains are in topographic steady state or in a transient state of relief production.
Keywords	altitude ; climate ; correlation ; data collection ; landscapes ; latitude ; mountains ; rain ; tectonics ; China
Language	English
Size	p. .
Publishing place	Elsevier B.V.
Document type	Article
Note	Pre-press version
ZDB-ID	58028-4
ISSN	0169-555X
ISSN	0169-555X
DOI	10.1016/j.geomorph.2017.08.050
Database	NAL-Catalogue (AGRICOLA)

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Article: Improvement of antler production and some reproduction traits in hybridization between Tian Shan Wapiti and Northeast Sika deer

Zhao, Lieping / Bao Yuan / Derui Zhao / Hao Jiang / Huansheng Han / Jiabao Zhang / Li Gao / Menglong Chai / Quankan Wang / Wenfa Lv / Ximing Wei / Yan Gao

Small ruminant research. 2017 Sept., v. 154

2017

Abstract: It is difficult to mate Sika does with Wapiti bucks due to differences in body size, estrus period and other environmental factors, although their hybrids have high economic value. In this study, we determined the optimal period of artificial ... ...

Abstract	It is difficult to mate Sika does with Wapiti bucks due to differences in body size, estrus period and other environmental factors, although their hybrids have high economic value. In this study, we determined the optimal period of artificial insemination and analyzed specific assisted reproductive technologies to improve hybrid survival. Newborn and fawn hybrids showed strong vitality, particularly with respect to adaptability, stress resistance, growth rate, cold tolerance and gastrointestinal disease resistance. Hybrid deer displayed characteristics of both parents, provided more venison and exhibited more antler production than their female parents. The buck teasing method led to a higher conception rate than the estrus synchronization method. We determined that the optimal time to perform artificial insemination is from 14 to 18h after the doe has entered estrus. Does that were overweight both before and during pregnancy often experienced dystocia. By contrast, does that were underweight often birthed fawns with congenital dysplasia. Additional days of lactation significantly increased the growth rate, immunity, and weaning survival rate of fawns without delaying return to estrus for the doe. This research should help improve the production capacity and adaptation of international hybrid deer for market diversification.
Keywords	artificial insemination ; body size ; bucks ; Cervus nippon ; cold tolerance ; conception rate ; deer ; digestive system diseases ; disease resistance ; dystocia ; economic valuation ; environmental factors ; estrus ; estrus synchronization ; fawns ; females ; hybridization ; hybrids ; immunity ; lactation ; markets ; neonates ; overweight ; parents ; pregnancy ; reproductive traits ; stress tolerance ; survival rate ; underweight ; venison ; weaning
Language	English
Dates of publication	2017-09
Size	p. 92-97.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	286928-7
ISSN	0921-4488
ISSN	0921-4488
DOI	10.1016/j.smallrumres.2017.07.010
Database	NAL-Catalogue (AGRICOLA)

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Article: Reconstructed precipitation on a centennial timescale from tree rings in the western Tien Shan Mountains, Central Asia

Zhang, Tongwen / Huaming Shang / Jia Wang / Mamatkanov Diushen / Qing He / Ruibo Zhang / Wenshou Wei / Yaqi Gao / Yujiang Yuan

Quaternary international. 2015 Feb. 09, v. 358

2015

Abstract: July–June precipitation has been reconstructed to 1756 AD for the western Tien Shan Mountains ...

Abstract	July–June precipitation has been reconstructed to 1756 AD for the western Tien Shan Mountains, Central Asia, using the Picea schrenkiana tree-ring width. The reconstruction explains 31% of the variation in the observed precipitation from 1933 to 2009. Some extremely dry signals in the historical documents are captured precisely in this new reconstruction. Wet periods occurred during the periods of 1811–1828, 1843–1880, 1893–1915, 1929–1934, and 1983–2002, while the periods 1766–1810, 1829–1842, 1881–1892, 1916–1928, and 1935–1982 were relatively dry. Power spectral and wavelet analyses demonstrated the existence of significant 32-, 17-, and 2.6–7.4-year cycles of variability. An assessment of spatial correlation analysis and the significant correlation coefficients between the reconstructed precipitation series and three precipitation reconstructions indicate that our reconstruction might contain multiple large-scale climatic signals in the low-frequency domain. A wetting trend in the eastern Central Asia since the 1970s decades was also captured by this reconstruction.
Keywords	growth rings ; mountains ; Picea schrenkiana ; wavelet ; Central Asia
Language	English
Dates of publication	2015-0209
Size	p. 58-67.
Publishing place	Elsevier Ltd
Document type	Article
ISSN	1040-6182
DOI	10.1016/j.quaint.2014.10.054
Database	NAL-Catalogue (AGRICOLA)

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