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中国农学通报 ›› 2018, Vol. 34 ›› Issue (25): 123-127.doi: 10.11924/j.issn.1000-6850.casb17060120

所属专题: 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

1961~2015年滁州干旱特征分析

袁明奎,马世强,严昀   

  1. 滁州市气象局 安徽滁州239000,滁州市气象局 安徽滁州239000,滁州市气象局 安徽滁州239000
  • 收稿日期:2017-06-27 修回日期:2018-04-12 接受日期:2018-04-25 出版日期:2018-09-07 发布日期:2018-09-07
  • 通讯作者: 袁明奎
  • 基金资助:
    滁州市气象科研项目“滁州不同强度降水演变规律的研究”(CZQXKY201702)。

Drought Characteristics in Chuzhou During 1961-2015

  • Received:2017-06-27 Revised:2018-04-12 Accepted:2018-04-25 Online:2018-09-07 Published:2018-09-07

摘要: 为更好地开展防灾减灾气象服务,利用1961~2015年逐日降水资料,采用数理统计、Z指数和Mann-Kendall等方法研究了滁州近55年干旱变化特征。结果表明:滁州年降雨气候呈湿化趋势,春、秋季呈干旱化趋势,春季干旱化明显,夏季、冬季呈湿润化趋势,冬季近10年以干旱化为主,值得关注。年及春季大旱、季节连旱皆5年1遇;大旱冬季5年2遇,夏季7年1遇,秋季8年1遇。

关键词: 气候变化, 气候变化, 参考作物蒸散量, Penman-Monteith模型, 西南地区

Abstract: The paper aims to provide meteorological service for preventing and reducing disasters. The authors studied the drought variation characteristics during 1961-2015 by means of mathematical statistics,Z index and Mann-Kendall test based on the monthly precipitation data during 1961-2015. The results indicated that: the climate of annual precipitation in Chuzhou had a wetting trend, spring and autumn showed a drought trend, and spring drought trend was obvious; while the climate of summer and winter had a trend of wetting, however, it was noticeable that drought was the main trend of winter climate during 2006-2015. Drought of year and drought of spring which were above great drought occurred once every 5-6 years; continuous drought of season by season occurred twice every 5 years; the frequency of drought which was above great drought occurred twice every 7 years in winter, once every 6 years in summer and once every 8 years in autumn.