| 邓 骋，赵 莉，杨太明，陈金华，包 琪，白群升，何贤芳，林勇翔，汪建来.安徽省10-12月积温时空变化特征及冬小麦适宜播期分析[J].麦类作物学报,2025,(1):73 |
| 安徽省10-12月积温时空变化特征及冬小麦适宜播期分析 |
| Analysis of the Spatio-Temporal Variation Characteristics of Accumulated Temperature from October to December and the Suitable Sowing Date for Winter Wheat in Anhui Province |
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| DOI： |
| 中文关键词: 安徽省 冬小麦 冬前积温 时空变化 适宜播期 |
| 英文关键词:Anhui Province Winter wheat Pre-winter accumulated temperature Spatio-temporal change Suitable sowing date |
| 基金项目:安徽省小麦良种联合攻关项目；沿淮地区麦稻周年绿色高效均衡增产技术研究与示范项目；阜南县现代高效循环农业产业园汪建来工作室项目；古井酿酒专用小麦新品种选育及配套技术研究项目 |
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| 中文摘要: |
| 为确定安徽省冬小麦适宜播期，利用1971-2021年安徽省分布于淮北、江淮及沿江麦区的50个气象站点观测数据，分析了10-12月积温时空变化特征，并基于叶龄积温法分析了前30 a（1971-2000年）与后21 a（2001-2021年）各地冬小麦冬前生长至不同叶龄对应的播期。结果表明，1971-2021年，安徽省及其各麦区10-12月每月积温及总积温均呈显著或极显著线性增加趋势，安徽省10-12月每月积温及总积温上升速率分别为8.6、9.6、7.8和26.1 ℃·（10 a）-1，安徽省及其各麦区10-12月每月积温上升速率呈现出11月＞10月＞12月规律；沿江麦区12月积温上升速率［6.5 ℃·（10 a）-1］明显低于淮北［8.4 ℃·（10 a）-1］及江淮［8.3 ℃·（10 a）-1］麦区；淮北和江淮麦区10-12月总积温上升速率均为26.6 ℃·（10 a）-1，沿江麦区略低［24.9 ℃·（10 a）-1］。安徽冬小麦冬前生长至相同叶龄时，后21 a播期比前30 a总体推迟1~4 d。淮北、江淮和沿江麦区后21 a适宜播期比前30 a分别平均推迟2.61、2.86和2.07 d。后21 a淮北麦区半冬性、弱冬性品种适宜播期分别为10月16-21日、10月12-16日，江淮麦区春性、半冬性品种适宜播期分别为10月25-30日、10月21-25日，沿江麦区春性品种适宜播期为10月30日-11月4日。 |
| 英文摘要: |
| To determine the suitable sowing date for winter wheat in Anhui Province, the spatio-temporal variation characteristics of accumulated temperature from October to December were analyzed using observation data from 50 meteorological stations distributed in the wheat areas of Huaibei, Jianghuai, and along the Yangtze River from 1971 to 2021. Based on accumulated temperature requirements for different pre-winter leaf ages, the sowing dates for winter wheat in the first 30 years (1971-2000) and the recent 21 years (2001-2021) were analyzed corresponding to different leaf ages. The results showed that from 1971 to 2021, the monthly and total accumulated temperature from October to December in Anhui Province and its wheat areas showed a significant linear increase trend. The increase rates of monthly and total accumulated temperature in Anhui Province from October to December were 8.6, 9.6, 7.8, and 26.1 ℃ per decade, respectively. The increase rate of monthly accumulated temperature in Anhui Province and its wheat areas from October to December showed a pattern ranking as November>October>December. The increase rate of accumalated temperature in the wheat area along the Yangtze River in December (6.5 ℃ per decade) was significantly lower than that in the Huaibei (8.4 ℃ per decade) and Jianghuai (8.3 ℃ per decade) wheat areas. The increase rate of total accumulated temperature from October to December in the Huaibei and Jianghuai wheat areas was 26.6 ℃ per decade, while the wheat area along the Yangtze River was slightly lower (24.9 ℃ per decade). When Anhui winter wheat grows to the same leaf age before winter, the sowing date in the past 21 years was generally delayed by 1-4 days compared to the first 30 years. The suitable sowing dates for wheat in the Huaibei, Jianghuai, and along the Yangtze River areas were delayed by an average of 2.61, 2.86, and 2.07 days in the past 21 years, compared to the first 30 years, respectively. The suitable sowing dates for semi-winter and weak winter varieties in the Huaibei wheat area in the past 21 years were October 16-21 and October 12-16, respectively. The suitable sowing dates for spring and semi-winter varieties in the Jianghuai wheat area are October 25-30 and October 21-25, respectively. The suitable sowing dates for spring wheat varieties in the wheat area along the Yangtze River are October 30-November 4. |
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