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中国农学通报 ›› 2010, Vol. 26 ›› Issue (17): 362-366.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

近50年唐山地区初终霜日、无霜期变化特征分析

王秀玲 高桂芹 郑艳萍   

  • 收稿日期:2010-03-11 修回日期:2010-04-15 出版日期:2010-09-05 发布日期:2010-09-05

The Variety Feature of The first and the lastest frost、Zero Frost Days in TangShan for the Past 50 Years0

  • Received:2010-03-11 Revised:2010-04-15 Online:2010-09-05 Published:2010-09-05

摘要:

利用唐山11个站的气象观测资料,详细分析了我市近50年来的霜的分布特征和变化趋势,结果表明:我市霜的分布具有明显的地域特征,无霜期南北相差约30天;我市初霜日明显延后,气候倾向率达到1.22天/10年;终霜日略有提前,但是不明显,气候倾向率只有0.836天/10年,主要受初霜日延后的影响,我市无霜期明显增加,气候倾向率为2.18天/10年;我市初终霜、无霜期年代特征明显;经突变分析,我市初终霜、无霜期存在明显的转折年。

关键词: 山药, 山药, 栽培, 分类, 成份, 开发利用

Abstract:

Based on the 11 stations data ,We labored the spatial feature an trend of frost for the past 50 years,The results indicate:The section feature of frost is obvios,The days without frost are 30 between the North and Sorth。The first frost is related obviously and the lastest frog is ahead.The days without frost are increasing because of the delay of the first frost.The age features of them are obvious.The first frost、the lastest frost and zero frost days occur a obvious turn for the past 50 years.