【摘要】 通过对50余年黑龙江省部分市、县气象资料和产量数据的分析,阐述了黑龙江省水稻低温冷害发生的时间规律。自20世纪80年代以来,全球气候变暖,水稻生育期内的气温也呈明显增加趋势。而在最近的几年间,6~8月份的日平均温度却呈现下降的态势,这正是导致2002年、2003年和2006年部分水稻产区障碍型冷害发生的原因。更多还原

【Abstract】 By dealing with meteorological data and yield of Heilongjiang province,the time regularity of rice cooling injury was discussed.From 1980,with the global warming,the temperature in rice growth and development stage is increasing.However in recent years,the average temperature between June and August is decreasing.This is the major reason of sterile cooling injury occurred at partial rice production regions in 2002,2003 and 2006.更多还原