Changes of Climate and Runoff in Tarim River Basin and Ecosystem Restoration in the Lower Reaches of Tarim River

As air temperature rising and precipitation increasing in Tarim River Basin since the middle of 1990s,Aksu River,Yarkent River,Kaidui River and Hotan River,which the four tributary river systems contribute flows to the Tarim River,turn simultaneously into high water(wet-year or abundance of water) period,and providing an unusual and historical opportunity for ecosystem restoration of mainstream of Tarim River.The recently unusual climate changes in Tarim basin and Xinjiang region attract extensive attention worldwide in science and public circles.The arguments for a climatic shift to warm-humid under global warming and intensive water cycle,or change in hydrological cycle period,are becoming a discussion hotspot about the cause of the phenomena.Based on the data of temperature,precipitation and runoff of hydrological and meteorological stations in mountain areas of source rivers during last 50 years,author analysis the change of discharge of Tarim River,and evaluated emergent water transfer for ecosystem restore in the lower reaches of the Tarim River.