2009年9月以来,长江流域来水明显偏少。据统计,与历年同期相比,9月除嘉陵江来水略偏多外,其余干支流来水均偏少,其中,寸滩、汉口、大通均偏少2成以上,洞庭湖城陵矶站来水偏少5成,鄱阳湖湖口站来水比正常情况略偏少。2009年10月上旬,长江流域来水较历史同期明显偏少,其中长江上 Since September 2009, the incoming water in the Yangtze River Basin has been obviously under-developed. According to statistics, compared with the same period in previous years, except for a little more water coming in from the Jialing River in September, the inflow of water from other dry tributaries is less than normal. Among them, Cotatum, Hankou and Chase all underdeveloped by more than 20% Water less than 5 percent, Poyang Lake Station mouth water slightly less than normal. In the first ten days of October 2009, the incoming water in the Yangtze River Basin was significantly less than that in the same period of history, including the Yangtze River