[Objective] The research aimed to study the influence of climatic variation on rife production in Anqing area. [Method] Based on the temperature and precipitation data in rice growth period (May-November) during 1980-2009, by using 5 - year moving average method, the moving average charts of temperature and rainfall were made. The variation characteristics of main factors (temperature and precipitation) which affected rice growth were analyzed. By using line moving average simulation method, |he climatic yield was separated, and the influence of climatic factor on rice yield in Anqing zone was analyzed. [Result] In recent 30 years, the temperature bad the ruing trend in the rice growth period in Anqing zone. Started from 1993, the rising was obvious. But the rainfall had the declining trend, and the rainfall was stable after 2000. These were the climatic background of that rice yield had the quick increasing after 2000. Seen from the separated result of trend yield and meteorological yield, the variation range of relative meteorological yield was big, and the biggest one reached 27. 5% in the yield re duction year. In retcent 30 years, there were four yield reduction years. The relationship between meteorological yield of rice and temperature was the positive correlation except in September. The excessive rainfall in the mature harvested period of rice had the unfavorable influence on rice yield. The drought was the main meteorological agricultural disaster which affected the rice yield in the zone. [ Conclusion] The research provided the theory basis for improving grain yield in Anqing zone.%[目的]研究气候变化对安庆地区水稻生产的影响.[方法]选取1980 ～2009年水稻生长期(5～11月)的气温、降水资料,采用5年滑动平均的方法,制作了气温和降水量的滑动平均图,分析影响水稻生长的主要因子气温及降水变化特点,并采用直线滑动平均模拟的方法来分离出气候产量,从而分析气候因子对安庆地区水稻产量的影响.[结果]近30年安庆地区水稻生长期内气温整体上是一个上升的趋势,从1993年开始上升比较明显,而降水量则是个下降的趋势,在2000年后降水量比较稳定；这些是水稻产量在2000年后出现一波较快增长的气候背景.从趋势产量和气象产量分离的结果来看,相对气象产量变化幅度较大,减产年份最大达27.5％,在近30年中减产年份达4年；水稻的气象产量与气温的关系除9月外均是呈正相关,水稻的成熟收获期的过量降水对水稻产量有不利影响.干旱是影响该地区水稻产量的主要气象农业灾害.[结论]该研究为提高安庆地区粮食产量提供理论依据.
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