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《Journal of Glaciology and Geocryology》 1988-01
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Glacier Water Resources of Qilian Mountains

Yang Zhenniang ( Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences )  
Meltwater runoff modules of glaciers in Qilian Mountains have been estimated base on the analysis of some data from temporary observation stations and glacier inventory. Analysis indicates that a regional characteristic of glacier meltwater runoff modules is as follow: Where: ks-modification coefficient of ablation area; Mgo - glacier meltwater runoff module of a fundamental station(1/s.km2); ΔHo - elevation difference of snowline between two glaciers(m); ΔTo - temperature modification value owing to the climatic difference bet- ween the two glaciers ( k ); r - gradient of temperature(k/m); ΔMo- increament of Mg with temperature change ( 5.01/s.km2.k ) . When the glacier meltwater runoff modules are known the total glacier meltwater runoff in Qilian Mountains is estimated to be 11.56×108m3. About 12.5% of the a-mount of stream runoff 68.12 108m3)in inland rivers of Hexi region is fed by glacier meltwater runoff. It is obviously that the glacier meltwater runoff is an important water resource for the rivers in Qilian Mountains. The distribution in space and time of glacier meltwater runoff is quite uneven. The glacier-fed ratio for the Shule River system in west part of Qilian Mountains is about 31%, while for the Shiyang River system in east part of Qilian Mountains only 3. 7%. The distribution of stream runoff has high concentration in summer, short water in spring and excessive water in summer. This is a distinct characteristic for glacier-fed rivers of the mountains in west China.
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【References】
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【Co-references】
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