| Research Articles |
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| Five decades of glacier changes in the Hulugou Basin of central Qilian Mountains, Northwest China |
| Hui CHEN1,2, ZhongQin LI1,2, PuYu WANG2, ZhongPing LAI2, RenSheng CHEN2, BaoJuan HUAI2 |
1 College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China;
2 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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Abstract The Heihe River Basin is the second largest inland river basin in the arid regions of Northwest China. Glaciers account for a large proportion of water resources for production and people's living. Studies of glacier changes and their impact on water resources in the arid lands are of vital importance. A joint expedition was carried out in 2010 for investigating glaciers in the Hulugou Basin, which is located in the upper reaches of Heihe River. Therefore, glacier changes in the Hulugou Basin of central Qilian Mountains during the past 50 years were studied in this study by comparing topographic maps, satellite images, digital elevation models and field observation data in the different periods. Results showed that the total area of the 6 glaciers in the Hulugou Basin decreased by 0.590±0.005 km2 during the period 1956–2011, corresponding to a loss of 40.7% of the total area in 1956. The average area reduction rate of the 6 glaciers is 0.011 km2/a. During the past five decades, the glacier shrinkage was accelerated. The changes in glacier ice surface elevation ranged from –15 to 3 m with an average thinning of 10±8 m or an annual decrease of 0.23±0.18 m (0.20±0.15 m/a water equivalent) for the period 1956–2000. The area of Shiyi Glacier in the Hulugou Basin decreased from 0.64 km2 in 1956 to 0.53 km2 in 2011 with a reduction rate of 17.2%. The Shiyi Glacier had been divided into two separated glaciers because of severe melting. Com-parative analysis showed that glacier shrinkage in the Hulugou Basin is more serious than that in the other regions of Qilian Mountains.
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Received: 16 February 2014
Published: 10 April 2015
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| Fund: The National Basic Research Pro-gram of China (2013CBA01801), the National Natural Science Foundation of China (41301069, 41471058), the Funds for Creative Research Groups of China (41121001), the Special Financial Grant from the China Postdoctoral Science Founda-tion (2014T70948) and the West Light Program for Talent Cul-tivation of Chinese Academy of Sciences. |
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Corresponding Authors:
PuYu Wang
E-mail: wangpuyu@lzb.ac.cn
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| Chen H, Li Z Q, Wang P Y, et al. 2013. Change of glaciers in the central Qilian Mountains. Arid Zone Research, 30(4): 588–593. (in Chinese)Granshaw F. 2002. Glacier change in the north cascades national park complex, Washington USA, 1958–1998. PhD Dissertation. Portland: Portland State University. Huss M. 2013. Density assumptions for converting geodetic glacier volume change to mass change. The Cryosphere, 7: 877–887.Investigation Team on Utilization of Snow and Ice Resources in Mountain Regions, Academia Sinica. 1958. Investigations Report of Glaciers in the Qilian Mountains. Beijing: Science Press. (in Chinese)Jia W X, He Y Q, Li Z X, et al. 2008. The regional difference and ca-tastrophe of climatic change in Qilian Mt. Region. Acta Geographica Sinica, 63(3): 257–269. (in Chinese)Jóhannesson T, Raymond C, Waddington E. 1989. Time-scale for ad-justment of glaciers to changes in mass balance. Journal of Glaci-ology, 35: 355–369.Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences. 1985. Memoirs of Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences, No. 5: Glacier Varia-tions and Utilizations in Qilian Mountains. Beijing: Science Press, 1–185. (in Chinese)Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences. 1992. Memoirs of Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences, No. 7: The Monitoring of Glacier, Climate, Runoff Changes and the Research of Cold Re-gion Hydrology in Qilian Mountains. Beijing: Science Press, 1–147. (in Chinese)Li J, Liu S Y, Shangguan D H, et al. 2010. Identification of ice elevation change of the Shuiguan River No. 4 Glacier in the Qilian Mountains, China. Journal of Mountain Sciences, 7: 375–379.Liu S Y, Shen Y P, Sun W X, et al. 2002. Glacier variation since the maximum of the Little Ice Age in the western Qilian Mountains, northwest China. Journal of Glaciology and Geocryology, 24(3): 227–233. (in Chinese)Liu Y S, Qin X, Zhang T, et al. 2012. Variation of the Ningchan River Glacier No. 3 in the Lenglongling Range, East Qilian Mountains. Journal of Glaciology and Geocryology, 34(5): 1031–1036. (in Chinese)Pan B T, Cao B, Wang J, et al. 2012. Glacier variations in response to climate change from 1972 to 2007 in the western Lenglongling mountains, northeastern Tibetan Plateau. Journal of Glaciology, 58(211): 879–888.Paul F, Huggel C, Kääb A. 2004. Combining satellite multispectral image data and a digital elevation model for mapping debris-covered glaciers. Remote Sensing of Environment, 89(4): 510–518. Pu J C, Yao T D, Duan K Q, et al. 2005. Mass balance of the Qiyi Glacier in the Qilian Mountains: A new observation. Journal of Glaciology and Geocryology, 27(2): 199–204. (in Chinese)Raup B, Kääb A, Kargel J S, et al. 2007. Remote sensing and GIS technology in the Global Land Ice Measurements from Space (GLIMS) Project. Computers & Geosciences, 33(1): 104–125.Rivera A, Casassa G, Bamber J L, et al. 2005. Ice-elevation changes of Glaciar Chico, southern Patagonia, using ASTER DEMs, aerial photographs and GPS data. Journal of Glaciology, 51(172): 105–112.Rodriguez E, Morris C, Belz J, et al. 2005. An assessment of the SRTM topographic products. In: Technical Report JPL D-31639. Jet Pro-pulsion Laboratory, Pasadena, California, 143.Sakai A, Matsuda Y, Fujita K, et al. 2006. Hydrological observations at July 1st Glacier in northwest China from 2002 to 2004. Bulletin of Glaciological Research, 23: 33–39.Song G J, Wang N L, Chen L, et al. 2008. Analysis of the recent features of the meltwater runoff from the Qiyi Glacier, Qilian Mountains. Journal of Glaciology and Geocryology, 30(2): 321–328. (in Chinese)State Bureau of Surveying and Mapping. 2007. Technical Rules for Producing Digital Products of 1:10000 1:50000 Fundamental Geo-graphic Information Part 1: Digital Line Graphs (DLG), CH/T 1015.1–2007. Beijing: Surveying and Mapping Press. (in Chinese)Strozzi T, Wiesmann A, Kääb A, et al. 2012. Glacial lake mapping with very high resolution satellite SAR data. Natural Hazards and Earth System Sciences, 12: 2487–2498. Wang P Y, Li Z Q, Gao W Y, et al. 2011. Glacier changes in the Heihe River Basin over the past 50 years in the context of climate change. Resources Science, 33(3): 399–407. (in Chinese)Wang P Y, Li Z Q, Li H L, et al. 2012. Glacier No. 4 of Sigong River over Mt. Bogda of eastern Tianshan, central Asia: thinning and retreat during the period 1962–2009. Environmental Earth Sciences, 66: 265–273.Wang Z T, Liu C H, You G X, et al. 1981. Glacier Inventory of China (I), Qilian Mountains. Beijing: Science Press. (in Chinese)Yan D H, Li Z Q, Gao W Y, et al. 2012. RS-based monitoring of glacier change in the Beidahe River Basin in the Qilian Mountains. Arid Zone Research, 29(2): 245–250. (in Chinese)Yang Y, Chen R S, Ji X B. 2007. Variations of glaciers in the Yeniugou watershed of Heihe River Basin from 1956 to 2003. Journal of Gla-ciology and Geocryology, 29(1): 100–106. (in Chinese)Ye Q, Kang S, Chen F, et al. 2006. Monitoring glacier variations on Geladandong mountain, central Tibetan Plateau, from 1969 to 2002 using remote-sensing and GIS technologies. Journal of Glaciology, 52(179): 537–545. |
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