关键词: 塔里木盆地, 河川径流, 温室效应

Abstract: Owing to increasingly intensive influence of greenhouse effect on the global temperature,the climates of different natural zones would vary considerably. In some places it probably becomes drier,while in other places it will become more humid.In this paper the river discharge variations in Trim Basin in recent thirty years were analysed.The analytical results of actual measured data show that the annual discharges of some rivers is increasing,some decreasing and others keep unchanged.Such variation tendencies are mainly dependent on their recharge sources.For those rivers that are recharged largely by alpine ice-melted water the annual discharges tend to be increased;while for those mainly recharged by rainfall,their annual discharges tend to be decreased.