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中国农学通报 ›› 2018, Vol. 34 ›› Issue (28): 101-105.doi: 10.11924/j.issn.1000-6850.casb18040073

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—2017年贵南地区气温稳定通过10℃界限温度变化特征

张晓云,孔祥萍,朱元福   

  1. 青海省海南州气象局,青海省海南州气象局,青海省海南州气象局
  • 收稿日期:2018-04-16 修回日期:2018-08-08 接受日期:2018-08-13 出版日期:2018-10-11 发布日期:2018-10-11
  • 通讯作者: 张晓云
  • 基金资助:
    无基金

The Critical Temperature Steadily Passed 10℃ in Guinan Region of Qinghai During 1961-2017: Variation Characteristics

  • Received:2018-04-16 Revised:2018-08-08 Accepted:2018-08-13 Online:2018-10-11 Published:2018-10-11

摘要: 为了给贵南地区合理利用气候资源及农业生产布局提供科学依据,笔者利用青海省贵南县气象局观测的1961—2017年逐日平均气温资料,使用线性趋势分析、累积距平、t检验法等方法,分析贵南县1961—2017年日平均气温稳定通过10 ℃的初日、终日、持续日数及同时期积温的变化特征。结果表明:1961—2017年贵南县气温稳定通过10 ℃的初日提前、终日推迟、持续日数延长、积温增加的现象,其倾向率分别为3.2 d.10a-1、1.1 d.10a-1、4.8 d.10a-1和65.6 (℃.d).10a-1。气温稳定通过10℃的初日在1994年发生提前突变、终日在1988年发生推迟突变;持续日数和积温均在1993年发生了由少到多的突变。

关键词: 谷子, 谷子, 农艺性状, 品质性状, 变异, 糯性鉴定

Abstract: The paper aims to provide a scientific basis for rationally utilizing climate resource and distribution of agricultural production. Based on the daily temperature data of Guinan Meteorological Bureau in Qinghai during 1961—2017,the spatiotemporal changes of the first date, final date,duration,and accumulated temperature were analyzed when the temperature reached 10℃ or higher, using the methods of linear regression,accumulative anomaly,T-test.The results showed that accumulated temperature,duration,first date, all showed a significant increasing tendency, and final date showed a insignificant increasing tendency during 1961—2017,with the rates of 3.2 d.10a-1、4.8 d.10a-1和65.6 (℃.d).10a-1,and the final date with the rates of 1.1 d.10a-1.The beginning date with the temperature stability through 10℃ had a advanced climate abrupt in 1994,the ending date with the temperature stability through 10℃ had a delay climate abrupt in 1988,the durations, accumulated temperature had a increased climate abrupt in 1993.