中国农业气象

• 论文 • 上一篇    下一篇

河南省气候变化及其对冬小麦越冬期的影响

李彤霄;赵国强;李有;   

  1. 河南农业大学;河南省气象科学研究所;
  • 出版日期:2009-04-10 发布日期:2009-04-10
  • 基金资助:
    中国气象局预测减灾应用技术开发推广项目“农业气象试验站生态环境监测和信息服务试验示范”;; 公益性行业(气象)科研专项“气候变化对中国粮食生产影响评价系统研究”(GYHY200806008)

Climate Change and its Impacts on Duration of Winter Wheat Overwintering Stage in Henan Province

LI Tong-xiao1,2,ZHAO Guo-qiang2,LI You1(1.Henan Agricultural University,Zhengzhou 450002,China;2.Henan Institute of Meteorological Sciences,Zhengzhou 450003)   

  • Online:2009-04-10 Published:2009-04-10

摘要: 选取河南省30个农气观测站1979-2007年的冬小麦越冬期资料和1957-2007年的气候资料,利用线性回归方法分析了河南省气候变化的趋势,结合样条插值法绘制了各因素变化倾向率的分布图。结果表明,分析期河南省大部分地区冬小麦越冬期天数呈缩短趋势,但郑州、封丘、许昌一带略有延长的趋势;全省范围内越冬期≥0℃积温、总日照时数变化倾向率与冬小麦越冬期天数变化倾向率有较高的相关性,越冬期≥0℃积温增加,总日照时数减少会导致冬小麦越冬期天数缩短。

关键词: 气候变化, 冬小麦, 越冬期

Abstract: Based on the data of the winter wheat over-wintering stage from 1979 to 2007 and climate data of 30 meteorological stations from 1957 to 2007 in Henan Province,the trends of the climate change were analyzed by using linear regression and the trend maps of each climate factor drawed by Spline.The results showed that the duration of overwintering stage became shorter in the most areas of Henan Province,but in the areas of Zhengzhou,Fengqiu and Xuchang,the duration presented a slightly prolonging trend.The accumulated temperature above 0℃ and the sunshine hours had close relationships with the duration of the over-wintering stage.The increased accumulated temperature above 0℃ and reduced sunshine hour might shorten the duration of the over-wintering stage.

Key words: Climate change, Climate change, Winter wheat, Over-wintering Stage