| 浙南茶树高温热害日数的气候变化特征 |
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| 引用本文： | 姜燕敏,李松平,马军辉,余久红.浙南茶树高温热害日数的气候变化特征[J].中国农学通报,2019,35(19):102-106. |
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| 作者姓名： | 姜燕敏 李松平 马军辉 余久红 |
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| 作者单位： | 1.丽水市气象局;2.丽水市农业局;3.龙泉市气象局 |
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| 基金项目： | 丽水市公益性技术应用研究项目“基于丽水生态优势的气候养生资源区划与应用”(2017GYX51)；浙江省气象局科技计划项目“基于农田 小气候的枇杷冻害风险评估”(2016YB04)；丽水气候生态创新团队项目“丽水农业小气候资源的研究与应用”(2015-1-2)。 |
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| 摘 要： | 为了了解浙南茶树高温热害程度，更好地为农业生产服务。根据浙南1971—2017年各县（市、区）逐日平均气温、最高气温、平均相对湿度观测资料，根据茶树高温热害气象指标统计浙南茶树高温热害日数，采用趋势分析方法和Mann-Kendall检验，分析浙南茶树高温热害的时空分布特征和趋势变化。结果表明：浙南茶树高温热害日数年均5.2 d/a，以丽水最多(12.9 d/a)，庆元最少(1.1 d/a)，7月下旬发生高温热害日数最多。浙南茶树高温热害日数呈显著上升趋势，气候倾向率1.9 d/10 a，2000年发生突变，21世纪初增多最为明显。丽水是浙南茶树高温热害最明显的区域，气候倾向率4.7 d/10 a，1993年突变转折，2003年开始显著增加，茶树遭受高温热害的几率明显增大。
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| 关 键 词： | 暴雨 暴雨 MCC 切变 地形增幅作用 |
| 收稿时间： | 2018/2/26 0:00:00 |
| 修稿时间： | 2019/6/12 0:00:00 |
Heat Injury Days of Tea in Southern Zhejiang: Climate Change Characteristics |
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| Abstract: | The paper aims to understand the heat injury of tea in southern Zhejiang, and better serve agricultural production. According to the daily average temperature, daily maximum air temperature and daily mean relative humidity dataset from 7 observation stations in southern Zhejiang during 1971-2017, based on the statistical days of heat injury of tea according to the heat injury grade index for tea plant, we analyzed the temporal and spatial characteristics of heat injury days of tea by using the trend analysis method and the Mann-Kendall test. The results showed that: the mean heat injury days of tea in southern Zhejiang was 5.2 d/a, the highest was in Lishui (12.9 d/a), and the lowest was in Qingyuan (1.1 d/a), and the highest occurrence probability in late July; the heat injury days of tea showed a significant increasing trend with the rate at 1.9 d/10a, mutated in about 2000, and the increasing trend was the most significant in the early 21th century. Lishui was the most obvious area occurring heat injury of tea in southern Zhejiang, and climate trend rate was 4.7 d/10 a, the mutation of heat injury of tea occurred in 1993 in Lishui, and the increasing trend was the most significant at the beginning of 2003. Therefore, the risk of heat injury of tea will obviously increase. |
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| Keywords: | applied meteorology heat injury of tea southern Zhejiang Lishui |
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