| 南昌县1954-2016年春季低温连阴雨、小满寒天气发生情况分析 |
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| 引用本文： | 程慧煌,王尚明,万正,张崇华.南昌县1954-2016年春季低温连阴雨、小满寒天气发生情况分析[J].中国农学通报,2019,35(36):104-109. |
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| 作者姓名： | 程慧煌 王尚明 万正 张崇华 |
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| 作者单位： | 1.江西农业大学 双季稻现代化生产协同创新中心/作物生理生态与遗传育种教育部重点实验室/江西省作物生理生态与遗传育种重点实验室;2.江西省农业气象试验站/南昌县气象局 江西 南昌 |
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| 基金项目： | 公益性行业科研专项“气候变化背景下双季稻生产全过程的气象适用技术研究”(GYHY201406025)。 |
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| 摘 要： | 春季低温连阴雨、小满寒天气的发生,直接影响到双季早稻播种、育秧和幼穗正常分化,进而影响早稻安全生产及晚稻季节安排。本文分析了南昌县1954-2016年63a春季低温连阴雨、小满寒天气发生情况。结果发现,春季低温连阴雨的发生次数与程度,均呈下降的趋势,但变化趋势不显著；小满寒发生的总次数和发生重度小满寒的次数呈显著下降趋势,而轻度小满寒和中度小满寒变化不明显。当前气候变化总体有利于双季稻生产,但为保证早稻的安全生产仍需根据当年实际天气情况进行合理安排。结论可为该区域早稻春季低温灾害的动态评估和早稻安全生产提供依据。
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| 关 键 词： | 烟后大麦 烟后大麦 播期 产量 农艺性状 相关分析 通径分析 灰色关联度分析 |
| 收稿时间： | 2018/11/22 0:00:00 |
| 修稿时间： | 2019/4/8 0:00:00 |
The Occurrence of Low-temperature Continuous Rain and Lesser Fullness Cold in Nanchang County: 1954-2016 |
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| Abstract: | To prevent the low temperature damage to early rice production and seasonal arrangement of late rice, the occurrence of spring low-temperature continuous rain and lesser fullness cold from 1954 to 2016 in Nanchang County were analyzed. The results showed that the occurrence and degree of spring low-temperature continuous rain over the past years presented a decreasing trend, which was not significant. The total number of lesser fullness cold had a significant downward trend, so did the number of severe lesser fullness cold, but the change of mild and moderate lesser fullness cold were not obvious. The current climate change is beneficial to double cropping rice production, and to ensure the safe production of early rice, reasonable arrangement should be made according to the actual weather conditions. The results could provide a basis for the dynamic assessment of low temperature damage in spring and the safe production of early rice in Nanchang County. |
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| Keywords: | spring low-temperature grain buds cold earlySrice safety production |
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