华北农学报 ›› 2025, Vol. 40 ›› Issue (S1): 78-85. doi: 10.7668/hbnxb.20195606

所属专题: 小麦 抗旱节水 栽培生理

• 耕作栽培·生理生化 • 上一篇    下一篇

基于MCI指数研究河北省冬小麦生育期干旱特征

高泽田1,2,3, 董航宇1,2,4, 范俊红1,2,3, 代立芹1,2,4, 冯雪1,2,3, 李文晴1,2,3   

  1. 1 中国气象局雄安大气边界层重点开放实验室,河北 雄安新区 071800
    2 河北省气象与生态环境重点实验室,河北 石家庄 050021
    3 河北省气象服务中心,河北 石家庄 050021
    4 河北省气象科学研究所,河北 石家庄 050021
  • 收稿日期:2024-12-26 出版日期:2025-12-29
  • 通讯作者:
    董航宇(1987-),女,河北沧州人,高级工程师,硕士,主要从事农业气象服务与研究。
    范俊红(1968-),女,河北磁县人,正研级高级工程师,硕士,主要从事暴雨、暴雪、强对流等灾害性预报技术研究。
  • 作者简介:

    高泽田(1997-),女,河北石家庄人,工程师,硕士,主要从事专业气象服务与研究。

  • 基金资助:
    国家重点研发计划项目(2022YFD2300202); 河北省气象局科研开发项目(24ky09)

Research on Drought Characteristics of Winter Wheat Growth Period in Hebei Province Based on MCI Index

GAO Zetian1,2,3, DONG Hangyu1,2,4, FAN Junhong1,2,3, DAI Liqin1,2,4, FENG Xue1,2,3, LI Wenqing1,2,3   

  1. 1 China Meteorological Administration Xiong'an Atmospheric Boundary Layer Key Laboratory,Xiong'an New Area 071800,China
    2 Key Laboratory of Meteorology and Ecological Environment of Hebei Province,Shijiazhuang 050021,China
    3 Meteorological Service Center of Hebei Province,Shijiazhuang 050021,China
    4 Meteorological Research Institute of Hebei Province,Shijiazhuang 050021,China
  • Received:2024-12-26 Published:2025-12-29

摘要:

旨为研究河北省冬小麦气象干旱的时空分布特征,利用河北省冬小麦种植区域119个国家气象站1991-2021年冬小麦生育期内的气象观测资料,根据《气象干旱等级》国家标准(GB/T 20481-2017)计算气象干旱综合指数(MCI),分析了河北省冬小麦近30年干旱时空分布特征。结果表明:河北省冬小麦种植区随着干旱等级从轻旱到特旱,干旱发生频率也呈阶梯式逐步下降。河北省冬小麦不同生育阶段轻旱发生频率平均值为22.1%~22.5%;中旱发生频率平均值为11.7%~14.5%;重旱发生频率平均值为3.6%~5.5%;特旱发生频率平均值为0.4%~1.0%。全生育期中旱及以上干旱发生频率相对偏高的地区主要在衡水大部、沧州西部和南部、邢台东部、邯郸东部,其发生频率均在20.25%以上。1991-2021年河北省冬小麦生育中期和生育后期的干旱强度和干旱范围均有明显减弱趋势。

关键词: 冬小麦, 干旱特征, 气象干旱综合指数(MCI), 河北省, 生育期

Abstract:

It is important for agricultural production to study the spatial and temporal distribution of winter wheat drought in Hebei Province.Based on the meteorological observation data of 119 national meteorological stations in Hebei Province during the growing period of winter wheat from 1991 to 2021,based on the national standard of"Meteorological Drought Grade"(GB/T 20481-2017),we calculated the meteorological drought composite index(MCI)and analyzed the spatial and temporal distribution characteristics of winter wheat drought in Hebei Province in recent 30 years.The results showed that:the frequency of drought decreased gradually with the drought grade from light drought to extreme drought.The average frequency of light drought occurrence in different growth stages of winter wheat in Hebei Province ranges from 22.1% to 22.5%.The average frequency of medium drought occurrence ranges from 11.7% to 14.5%.The average frequency of heavy drought occurrence ranges from 3.6% to 5.5%.The average frequency of extreme drought occurrence ranges from 0.4% to 1.0%.During the whole growth period,the areas with relatively high frequency of occurrence of medium drought and above were mainly distributed in most parts of Hengshui,west and south of Cangzhou,east of Xingtai,and east of Handan,and the frequency of occurrence was more than 20.25%.From 1991 to 2021,the drought intensity and range of winter wheat in Hebei Province showed a significant decreasing trend in the middle and later stages of growth.

Key words: Winter wheat, Characteristics of drought, MCI, Hebei Province, Growth stage

中图分类号: 

引用本文

高泽田, 董航宇, 范俊红, 代立芹, 冯雪, 李文晴. 基于MCI指数研究河北省冬小麦生育期干旱特征[J]. 华北农学报, 2025, 40(S1): 78-85. doi: 10.7668/hbnxb.20195606.

GAO Zetian, DONG Hangyu, FAN Junhong, DAI Liqin, FENG Xue, LI Wenqing. Research on Drought Characteristics of Winter Wheat Growth Period in Hebei Province Based on MCI Index[J]. Acta Agriculturae Boreali-Sinica, 2025, 40(S1): 78-85. doi: 10.7668/hbnxb.20195606.