曹妃甸水稻气候品质的评价

Evaluation of Rice Climatic Quality in Caofeidian Region

为给曹妃甸地区水稻气候品质认证提供参考,利用该地区1980—2015年的气象数据和水稻生育期数据进行模型计算和统计分析。结果表明:曹妃甸水稻气候品质较好,多年平均分值达95.2,但随着气候变暖其气候品质有所下降,下降趋势为0.99/10a;其气候品质在近36年的时间序列里存在突变现象,突变出现在20世纪80年代末90年代初,在1995年后下降趋势显著。光照对曹妃甸水稻品质几乎无影响。气温的变化是影响曹妃甸水稻品质的关键因素。

The data of meteorology and rice growth period in Caofeidian Region during 1980—2015 were evaluated by model calculation and statistic analysis to provide a reference for certification of rice climatic quality in Caofeidian Region.Results：The rice climatic quality in Caofeidian Region is better and the annual average score reaches 95.2.The climatic quality slightly decreases with climate warming and the declining trend is 0.99/10 a.There is a mutation in climatic quality during 1980—2015.The mutation of climatic quality appears during the late 1980 sto early 1990 sand the declining trend of climatic quality is significance after 1995.The sunshine has no effect on rice quality but temperature variation is a key factor to influence rice quality in Caofeidian Region.