The downstream of Tarim River Basin,which is 491 km in length from Kara to Taitma Lake,it also is a very important passage way to the inland of China and has an important role in preventing Takramagan Desert and Kurumtag Desert from merging into a whole.

• 塔里木河下游的卡拉到罗布庄(台特马湖口),河道长度491km,塔河中、上游大规模水土开发,使其下游的水量不断减少。