中文摘要：

根据1960—2014年新疆地区49个气象站点的逐日气温、降水等气象资料,计算得到改进的综合气象干旱指数,确定了各站的旱涝等级,探索新疆气象旱涝的南北差异性。研究表明：1在干旱严重程度上,南北差异不大,南疆略大于北疆;2在雨涝严重程度上,南北差异大,北疆的严重程度大于南疆;3从整体上看,新疆呈现出由旱转涝的趋势;4在季节性旱涝中,南北疆的冬涝最为严重,南疆的冬旱和北疆的夏旱最为严重。从整体上看,新疆旱涝气候的南北差异性主要体现在雨涝严重程度上,北疆大于南疆。

英文摘要：

In this paper,the different variation of the drought / flood disasters in north Xinjiang and south Xinjiang was analyzed based on the daily temperature and precipitation data from 49 meteorological stations in Xinjiang during the period from 1960 to 2014 so as to provide the basis for disaster prevention,and the drought and flood grades at every station were confirmed by the improved CI. Results are as follows： 1 The difference of drought intensity between north Xinjiang and south Xinjiang was not significant,and the drought in south Xinjiang was slightly more serious than that in north Xinjiang; 2 The difference of flood intensity between north Xinjiang and south Xinjiang was significant,and the flood in north Xinjiang was more serious than that in south Xinjiang; 3 Holistically,a trend from high occurrence frequency of drought to high occurrence frequency of flood occurred in Xinjiang; 4 Seasonally,winter flood disasters were the most serious in both north Xinjiang and south Xinjiang,and the winter drought in south Xinjiang and the summer drought in north Xinjiang were the most serious. As a whole,the difference of drought / flood disasters between south Xinjiang and north Xinjiang reflected mainly by the serious degree of rainfallcaused flood,and the flood in north Xinjiang was more serious than that in south Xinjiang.