湖北农业科学 ›› 2019, Vol. 58 ›› Issue (22): 58-64.doi: 10.14088/j.cnki.issn0439-8114.2019.22.014

• 资源·环境 • 上一篇    下一篇

河南省干热风发生规律及其与小麦开花期的关系

李彤霄1, 2, 成林1, 2, 马青荣1, 2, 刘佳3   

  1. 1.中国气象局·河南省农业气象保障与应用技术重点开放实验室,郑州 450003;
    2.河南省气象科学研究所,郑州 450003;
    3.郑州市气象局,郑州 450003
  • 收稿日期:2019-08-13 出版日期:2019-11-25 发布日期:2019-12-09
  • 通讯作者: 成林(1982-),女,新疆伊犁人,高级工程师,硕士,主要从事应用气象研究,(电话)0371-65922897(电子信箱)rainwood2@163.com。
  • 作者简介:李彤霄(1981-),男,河南南阳人,高级工程师,硕士,主要从事应用气象研究,(电话)18638398129(电子信箱)ltx1981011@163.com;
  • 基金资助:
    国家自然科学基金青年基金项目(31601213); 中国气象局农业气象保障与应用技术重点开放实验室科学研究基金项目(AMF201704); 河南省气象局科研计划项目(KZ201816)

Occurrence regularity of dry-hot wind and relationship with winter wheat flowering period in Henan province

LI Tong-xiao1, 2, CHENG Lin1, 2, MA Qing-rong1, 2, LIU Jia3   

  1. 1.Key Laboratory of Agrometeorological Safeguard and Applied Technique in Henan Province,China Meteorological Administration,Zhengzhou 450003,China;
    2.Henan Institute of Meteorological Science,Zhengzhou 450003,China;
    3.Zhengzhou Meteorological Bureau,Zhengzhou 450003,China
  • Received:2019-08-13 Online:2019-11-25 Published:2019-12-09

摘要: 利用河南省30个农业气象观测站1990—2018年小麦生育期观测数据和同期气象资料,依据QX/T 82-2019确定近29年干热风发生时间和强度,利用数值分析法分析河南省干热风发生规律及其与小麦开花期的关系。结果表明,近29年河南省干热风年型呈先增加后减少趋势,干热风过程呈逐渐减少的趋势,其中干热风年型和干热风过程在2000—2009年发生站次最多。河南省干热风高发区域主要集中在河南省北部和中部区域,西部、西南部地区也有一些分布。2000—2009年发生年型增多的主要原因是重度干热风过程的增加,干热风发生面积的增加。干热风最早发生日期平均为儒略日第144天,近29年豫中大部、豫西、豫南局部发生日期有推迟的趋势,其他地区为提前的趋势;不同年代总体趋势呈从西向东、从南往东北延迟的趋势。开花期平均日期为儒略日第126天,近29年河南省冬小麦的开花期日期从北向南逐渐提前。河南省大部分地区干热风间隔天数以延长的趋势为主,且干热风首日变化趋势与开花期间隔时间的变化趋势极显著相关。开花期变化趋势与重干热风过程显著相关。

关键词: 干热风, 冬小麦, 开花期, 间隔天数

Abstract: Based on the observation data of winter wheat from 1990 to 2018 and the meteorological data of 30 agrometeorological observation stations in Henan province, the occurrence time and intensity of dry-hot wind in the past 29 years were determined according to QX/T 82-2019, the occurrence law of dry-hot wind in Henan province and its relationship with winter wheat flowering period were analyzed by numerical analysis method. The results showed that the annual type of dry-hot wind in Henan province increased first and then decreased in the past 29 years, and the dry-hot wind process was a decreasing trend, and the annual types and processes of dry-hot wind were mainly occurred in 2000-2009. The high incidence area of dry-hot wind in Henan province is mainly concentrated in the northern and central regions of Henan province, and some parts in the western and southwestern. The main reasons for the increase of the annual type in 2000-2009 are the increasing of the heavy dry-hot wind process and the increase of the occurrence area of dry-hot wind. The earliest occurrence date of dry-hot air was on the 144th day of Julian day, and in recent 29 years there was a tendency to postpone the local occurrence dates of most parts of central Henan, western Henan and southern Henan, and the trend of other regions was in advance, and the overall trend in different years was delayed from west to east and from south to northeast. The average date of flowering period was the 126th days of Julian day, and the flowering date of winter wheat in Henan province was gradually advanced from north to south in the past 29 years. The number of days in most areas of Henan province was dominated by the trend of prolongation, and the earliest time change trend of dry-hot air was significantly correlated with the change trend of dry-hot air and flowering interval. The change trend of flowering period was significantly related to the process of heavy dry-hot wind.

Key words: dry-hot wind, winter wheat, flowering period, interval day

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