中文摘要：

采用祁连山老虎沟12号冰川2009年RTK测量生成的数字高程模型（DEM）,建立现代冰川表面横截面拟合的二次方程,结合差分GPS测量的冰碛垄形态,运用于祁连山摆浪河上游14号冰川和16号冰川全新世以来冰量变化的估算.结果表明：新冰期以来冰储量减少0.38 km^3,小冰期以来14号冰川和16号冰川的冰储量分别减少0.016 km^3和0.047 km^3;根据祁连山全新世各个时期最大冰川范围的时间,估计了全新世以来14号和16号冰川冰储量的减少速率,新冰期以来为12.2×10^-5-15.0×10^-5km3·a^-1,小冰期以来分别为4.0×10^-5-5.3×10^-5km3·a^-1,11.75×10^-5-15.7×10^-5km3·a^-1.

英文摘要：

By using the Laohugou Glacier No. 12 digital elevation model derived from measurement,a series of transverse profiles on the Laohugou Glacier No. 12 surface were fitted with quadratic equations,then combined with differential GPS measuring moraine ridge forms,the ice volume variations since the Holocene of the Glaciers No. 14 and No. 16,which lay on the headwaters of the Bailanghe River,were estimated. The results showthat the ice volume have decreased 0. 38 km^3 since the Neoglaciation,Glaciers No. 14 and No. 16 have decreased0. 016 km^3 and 0. 047 km^3,respectively,during the Little Ice Age. According to the time of the maximum glaciation in different periods of the Holocene in the Qilian M ountains,the velocity of the ice volume shrinkage of Glaciers No. 14 and No. 16 since the Holocene are estimated to be 12. 2 × 10^-5- 15. 0 × 10^-5km^3·a^-1since the Neoglaciation,and 4. 0 × 10^-5- 5. 3 × 10^-5km^3·a^-1 and 11. 75 × 10^-5- 15. 7 × 10^-5km^3·a^-1,respectively,since the Little Ice Age.