【摘要】 通过对潮州近50a来气候资料和20多年来水稻主要生育期变化规律的分析,结果表明:20世纪80年代以来,潮州升温明显,春季和秋季是增温较明显的季节,春季低温阴雨、秋季寒露风天气发生几率明显减少,夏季高温天气明显增加。与之相适应,水稻生育期积温升高,各生育期均有不同程度的提早,特别是2001年以后,各生育期提早更明显。通过对水稻各生育期与不同时段气温的相关分析得出,早稻各生育期与气温呈显著反相关,晚稻呈正相关,但相关不明显;对早稻大多数生育期而言,它与播种到该生育期之间平均气温的相关性均较好。在此基础上,提出了适应气候变化的水稻栽培管理对策,为提高水稻的产量和品质、增加农民收入提供参考。更多还原

【Abstract】 By analyzing climate data in recent 50 years and the change of main growth periods of rice in recent 20 years in Chaozhou,the results showed that the temperature had risen gradually since 1980s in Chaozhou,the temperatures in spring and autumn had increased significantly,low temperature and rainy days in spring,cold dews wind weather decreased significantly in autumn.The high temperature days increased significantly in summer.Consequently the accumulated temperature during rice growth stages increased,and each growth stage of rice became earlier,particularly since 2001.Relative analysis on each growth stage of rice and temperature,the results showed that each periods of early rice was significantly negatively correlated with temperature,late rice was positively correlated with temperature but it was not significant.For most growth stages of early rice,it had good correlation with the average temperature since sowing time.Moreover,the countermeasures of rice planting management were put forward to adapt to climate change,which could provided a reference to increase rice yield and quality as well as farmers income.更多还原