Glacier and snow variations and their impacts on regional water resources in mountains
Glacier and snow variations and their impacts on regional water resources in mountains
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山地冰川雪变化及其对区域水资源的影响
DOI：
10.1007/s11442-019-1585-2
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发表时间：
2019-01
影响因子：
4.9
通讯作者：
Li Yang
中科院分区：
文献类型：
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作者：
Deng Haijun;Chen Yaning;Li Yang
冰川和雪是山区固体水体的主要成分，它们可以调节当地水源的稳定性。然而，他们受到气候变化的强烈影响。这项研究以天山山脉为重点，使用冰川和雪的数据集来分析冰川、雪、蓄水和径流的变化。选取了阿克苏、开斗河和乌鲁木齐三个典型流域，分析了冰雪变化对天山区域水资源的影响。结果表明，冰川退缩速度与冰川面积呈非线性函数关系，表明小规模冰川退缩对气候变化更为敏感。此外，中低海拔地区的冰川退缩速度要快于高海拔地区。2003-2015年天山区域平均陆地蓄水量(TWS)递减速率为-0.7±1.53 cm/a。TWS亏损率最高的地区位于天山山脉中部，与冰川急剧退缩密切相关。冰川和积雪融化水量的增加导致了三个典型流域径流量的增加，尤其是阿克苏河流域(0.4×108m~3/a)。20世纪90年代中期以来，冰川面积的减少和变薄，以及冰川平衡线高度(ELV)的增加，是造成三大流域径流减少的主要原因。因此，研究结果揭示了气候变化下山区冰川和降雪对区域水资源影响的机制，为山区流域水资源管理提供参考。
Glaciers and snow are major constituents of solid water bodies in mountains; they can regulate the stability of local water sources. However, they are strongly affected by climate change. This study focused on the Tianshan Mountains, using glacier and snow datasets to analyse variations in glaciers, snow, water storage, and runoff. Three typical river basins (Aksu, Kaidou, and Urumqi Rivers) were selected to interpret the impacts of glacier and snow changes on regional water resources in the Tianshan Mountains. The results exhibited a nonlinear functional relationship between glacial retreat rate and area, demonstrating that small glacial retreat is more sensitive under climate change. Further, the glacial retreat rate at the low-middle elevation zone was seen to be faster than that at the high elevation zone. The regional average terrestrial water storage (TWS) decrease rate in the Tianshan Mountains was–0.7±1.53 cm/a during 2003–2015. The highest TWS deficit region was located in the central part of the Tianshan Mountains, which was closely related to sharp glacial retreats. The increases in glacier and snow meltwater led to an increase in runoff in the three typical river basins, especially that of the Aksu River (0.4×108m3/a). The decreasing and thinning of areas, and increasing equilibrium line altitude (ELV) of glaciers have been the major causes for the decrease in runoff in the three river basins since the mid-1990s. Therefore, the results reveal the mechanisms causing the impacts of glaciers and snow reduction in mountains on regional water resources under climate change, and provide a reference for water resources management in the mountainous river basins.
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DOI：
--
发表时间：
2015
期刊：
--
影响因子：
--
作者：
Liu Shiyi
通讯作者：
Liu Shiyi
影响因子：
5.3
作者：
K. Matsuo;K. Heki
通讯作者：
K. Matsuo;K. Heki
DOI：
--
发表时间：
2009
期刊：
Journal of Glaciology and Geocryology
影响因子：
--
作者：
Wang Shun-de
通讯作者：
Wang Shun-de
影响因子：
3.4
作者：
Shiyin Liu;Wenxin Sun;Yongping Shen;L. Gang
通讯作者：
Shiyin Liu;Wenxin Sun;Yongping Shen;L. Gang
中亚水塔的变化：过去、现在和未来
影响因子：
4.6
作者：
Chen, Yaning;Li, Weihong;Li, Zhi
通讯作者：
Li, Zhi