降水与冰川融水径流量增加百分率相比，增加幅度较小。
But, as compared to the increased percentage of runoff from glacier meltwater, the increase amplitude is smaller.
由于长江源区冰川变化幅度小，虽冰川退缩使冰川融水径流量有所增加，但对径流的影响程度相对较小。
Although retreat of glaciers causes increase in glacier melt water runoff, the effect of glacier retreat on sur - face runoff is relatively small because of small amplitude of glacier change.
由于长江源区冰川变化幅度小，虽冰川退缩使冰川融水径流量有所增加，但对径流的影响程度相对较小。
Although retreat of glaciers causes increase in glacier melt water runoff, the effect of glacier retreat on sur - face runoff is relatively small because of small amplitude of glacier change.
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