1997年辽宁省农作物生长季热量资源丰富，大于等于10t积温，辽北及东部山区偏多174～234℃·d其余大部分地区比常年偏多245～390t·d；总目照时数接近常年。但出现了历史上罕见的持续高温、少雨天气，大部分地区春旱连夏旱，严重影响了全省玉米的播种、出苗以及此后各个生育期 In 1997, Liaoning Province was rich in caloric resources during the crop growing season, with an accumulated temperature of 10t or above. In the north of Liaoning Province and in the eastern mountainous areas, the temperature was mostly 174-234 ℃. Most of the remaining areas were 245-390t · d more than in previous years. . However, there has been a rare history in the continuous high temperature, light rainy weather, drought in most areas even the summer drought, seriously affecting the sowing of the province’s corn, emergence and subsequent growth period