J4 ›› 2009, Vol. 27 ›› Issue (3): 227-231.

• 论文 • 上一篇    下一篇


王发科祁贵明郭晓宁李 兵   

  1. 青海省格尔木市气象局,青海 格尔木 816000
  • 收稿日期:2009-06-29 修回日期:2009-07-20 出版日期:2010-09-30 发布日期:2009-09-30
  • 作者简介:王发科(1969-),男,甘肃渭源人,工程师,主要从事农业气象、生态等工作.

C limatic Change ofAgriculturalCriticalTemperature in the SouthernM argin ofQaidam Basin

WANG Fake, QIGuiming, GUO Xiaoning, LIBing   

  1. GeermuMeteorologicalBureau ofQinghaiProvince,Geermu816000, China
  • Received:2009-06-29 Revised:2009-07-20 Online:2010-09-30 Published:2009-09-30



关键词: 界限温度, 积温, 气候变化


Abstract:By using the agricultural critical temperature data (≥0℃,≥5℃,≥10℃) from three stations in the southernmargin of Qaidam basin during the period of1961-2007, the temporal-spatial changes of the first and the lastdaywhen dailymean temperaturewas above 0℃, 5℃and 10℃all thewhile, the interval days of them, aswell as the accumulated temperature(≥0℃,≥5℃,≥10℃) have been analyzed. The results show that the firstdaymoved earlier and the lastday came later for each critical temperature, so the interval days between the first and the lastday above 0℃, 5℃and 10℃increased, and the accumulated temperature presented increasing trend also in the southern margin ofQaidam basin. The variation characteristic for each critical temperature was inconsistently in different areas and decades.

Key words: critical temperature, accumulated temperature, climatic change