The experimental results indicated that if the emptying scour was employed in the Changma reservoir, the deposition in the reservoir could be efficiently driven out and the reservoir life can be extended.

• 选择水库运用过程中两个关键性的淤积高程，进行对水库排沙不利的丰水丰沙年和枯水丰沙年两个水文年7月份水沙过程泄空冲刷试验。