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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (13): 112-117.doi: 10.11924/j.issn.1000-6850.casb17020042

所属专题： 园艺； 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

浙江省茶树冬季冻害时空分布特征

胡 波1,金志凤2,李 颖3,丁烨毅1,李仁忠2   

  1. (1宁波市气象局,浙江宁波 315012；2浙江省气候中心,杭州 310017；3浙江省气象科学研究所,杭州 310008）
  • 收稿日期:2017-02-14 修回日期:2017-03-15 接受日期:2017-03-16 出版日期:2017-05-16 发布日期:2017-05-16
  • 通讯作者: 胡波
  • 基金资助:
    公益性行业（气象）科研专项“江南茶树生产气象保障关键技术研究”(GYHY201306037)；中国气象局气象关键技术集成与应用项目“优质农产品气候品质评价技术集成与应用”(CMAGJ2013M20)。

Temporal and Spatial Distribution of Winter Freezing of Tea Trees in Zhejiang

Hu Bo1, Jin Zhifeng2, Li Ying3, Ding Yeyi1, Li Renzhong2   

  1. (1Ningbo Meteorological Bureau, Ningbo Zhejiang 315012; 2Zhejiang Climate Center, Hangzhou 310017;3Zhejiang Institute of Meteorological Sciences, Hangzhou 310008)
  • Received:2017-02-14 Revised:2017-03-15 Accepted:2017-03-16 Online:2017-05-16 Published:2017-05-16

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摘要： 为了分析浙江省茶树冬季冻害时空分布特征。本研究提出了茶树冬季冻害的气象指标和等级划分，基于该指标和全省64个基本气象站1971—2011年气象数据，采用经验正交函数和小波分析方法，研究了浙江省茶树冬季冻害的空间分布和时间演变特征。结果表明，茶树轻度、中度和重度冬季冻害第1模态能总体反映冬季冻害发生的多年平均状况。轻度和重度冬季冻害第1模态空间分布均表现为全省一致为正，轻度和重度高值区均位于浙江省西北部等地；中度冬季冻害第1模态空间分布表现为除温州东部、台州东南部地区外，其余地区都为负值，其特征向量绝对值的最大值位于浙北、浙中地区。研究结果可为茶树生产提供科学依据。

关键词: 涪陵, 涪陵, 极端气候事件, 榨菜, 栽培, 影响

Abstract: In order to analyze the temporal and spatial distribution of winter freezing of tea(Camellia sinensis) in Zhejiang province, the meteorological indexes and hierarchies of tea trees winter freezing were proposed in the article. With the indexes and the data in the 64 meteorological stations around the province during 1971-2011, the temporal and spatial distribution of winter freezing of tea trees in Zhejiang province was analyzed using the empirical orthogonal function(EOF) and wavelet analysis. The results showed that the first EOF mode for the mild, moderate and severe winter freezing could reflected the average case of the whole province. The spatial distribution of first EOF mode for the mild and severe frost were all positive in the whole province, and both high value of mild and severe were around northwest Zhejiang. The EOF mode for moderate were overall negative, except east Wenzhou, southeast Taizhou. The maximum absolute values of the mode were around north and middle Zhejiang. The results could provide a scientific basis for tea trees production.