IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.2
Glacial Runoff Likely Reached Peak in the Mountainous Areas of the Shiyang River Basin, China
ZHANG Shi-qiang; GAO Xin; Zhang Xiao-wen
Corresponding AuthorZHANG Shi-qiang
2015-03
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume12Issue:2Pages:382-395
Subtype期刊论文
AbstractGlacier runoff in mountain areas of the Shiyang River Basin (SRB), Qilian Mountain, western China is important for the river and water supply downstream. Small glaciers with area of less than 1 km2 are dominant (87%) in the SRB. A modified monthly degree-day model was applied to quantify the glacier mass balance, area, and changes in glacier runoff in the SRB during 1961–2050. The comparison between the simulated and observed snow line altitude, annual glacier runoff, and mass balance from 1961 to 2008 suggests that the degree-day model may be used to analyze the long-term change of glacier mass balance and runoff in the SRB. The glacier accumulation shows a significant (p<0.01) decreasing trend of -0.830 mm a-1. The mass balance also shows a significant (p<0.01) decreasing trend of -5.521 mm a-1. The glacier total runoff has significantly (p<0.05) increased by 0.079 × 105 m3 from 1961 to 2008. The monthly precipitation and air temperature are projected to significant(p<0.005) increase during 2015 to 2050 under three different scenarios. The ablation is projected to significant (p<0.001) increase, while the accumulation has no significant (p=0.05) trend. The mass balance is projected to decrease, the glacier area is projected to decrease, and the glacier runoff depth is projected to increase. However, the glacier total runoff is projected to decrease. These results indicate that the glacier total runoff over glacier areas observed in 1970 reached its peak in the 2000s. This will exacerbate the contradiction between water supply and downstream water demands in the SRB.
KeywordClimate Change Mass Balance Glacial Runoff Glacier Area Shiyang River Basin
DOI10.1007/s11629-014-3077-2
Indexed BySCI
Language英语
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7975
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.2
Corresponding AuthorZHANG Shi-qiang
Recommended Citation
GB/T 7714
ZHANG Shi-qiang,GAO Xin,Zhang Xiao-wen. Glacial Runoff Likely Reached Peak in the Mountainous Areas of the Shiyang River Basin, China[J]. Journal of Mountain Science,2015,12(2):382-395.
APA ZHANG Shi-qiang,GAO Xin,&Zhang Xiao-wen.(2015).Glacial Runoff Likely Reached Peak in the Mountainous Areas of the Shiyang River Basin, China.Journal of Mountain Science,12(2),382-395.
MLA ZHANG Shi-qiang,et al."Glacial Runoff Likely Reached Peak in the Mountainous Areas of the Shiyang River Basin, China".Journal of Mountain Science 12.2(2015):382-395.
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