西部地区干旱缺水问题，将越来越成为西部经济社会快速持续发展的重要“瓶颈”。重视研究水在西部大开发中的“瓶颈”作用，具有十分重要的意义。一、水已经成为西部大开发的重要“瓶颈”从总体上看，西部地区干旱少雨，水资源短缺；局部洪涝灾害严重，防御能力较低；水土流失 The problem of drought and water shortage in the western region will increasingly become an important “bottleneck” in the rapid and sustained economic and social development of the western region. It is of great significance to pay attention to studying the “bottleneck” role of water in the development of the western region. First, water has become an important “bottleneck” in the development of the western region Generally speaking, there is arid and no rain in the western region and there is a shortage of water resources. There are serious floods and floods in the western part of the country with low defensive capabilities. Soil and water loss