【摘要】 在多年水文和气象数据的基础上,分析了作为塔里木河中游地区主要水资源的径流与降水量的多年变化的特点、趋势及其原因和影响。认为多年来该地区水资源呈逐渐减少趋势,并且年内水资源分配极不平衡,多集中于夏季。这些情况给该地区的生态环境带来威胁,给水资源管理带来很大困难。更多还原

【Abstract】 The condition of water resource change in the middle reaches area of the Tarim River are analyzed based on many years’ hydrological and meteorological data,including the characteristic,trend,and influencing index.The results show :the water resource amount shows a decreasing trend,and the allocation of water amount to every month in a year is uneven,which are converged in summer.These situations threaten the ecological environment in the area and managing of water become more difficult.更多还原