湖北农业科学 ›› 2021, Vol. 60 ›› Issue (5): 35-38.doi: 10.14088/j.cnki.issn0439-8114.2021.05.007

• 资源·环境 • 上一篇    下一篇

河南省参考作物蒸散量季节变化及其成因分析

王奇博, 张晨   

  1. 信阳市气象局,河南 信阳 464000
  • 收稿日期:2020-04-11 出版日期:2021-03-10 发布日期:2021-03-22
  • 作者简介:王奇博(1990-),男,河南新郑人,工程师,硕士,主要从事农业科学研究,(电话)17788179830(电子信箱)895200237@qq.com。
  • 基金资助:
    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开放基金项目(AMF202005)

Seasonal variation and climatic factors of reference crop evapotranspiration in Henan province

WANG Qi-bo, ZHANG Chen   

  1. Xinyang Meteorological Bureau, Xinyang 464000,Henan,China
  • Received:2020-04-11 Online:2021-03-10 Published:2021-03-22

摘要: 利用河南省99个气象站1965—2018 年逐日气象资料,采用Penman-Monteith公式计算逐日参考作物蒸散量,利用气候倾向率、相关分析和偏相关分析等方法分析河南省参考作物蒸散量的季节变化特征,并对其主要影响因子进行探讨。结果表明,季参考作物蒸散量呈减少趋势,各季节参考作物蒸散量的气候倾向率绝对值由大到小依次为夏季、秋季、冬季、春季。春季参考作物蒸散量为北高南低的纬向型分布,夏、秋2季均为东高西低的经向型分布。风速的减小和日照时数的缩短是河南省参考作物蒸散量减少的主要原因。

关键词: 参考作物蒸散量, Penman-Monteith公式, 时空分布, 影响因子, 河南省

Abstract: Based on the daily data of 99 meteorological stations in Henan province from 1965 to 2018, the daily reference crop evapotranspiration was calculated by using of FAO Penman-Monteith equation. The spatiotemporal variation of reference crop evapotranspiration were analyzed by using trend analysis, and its climatic factors were analyzed by correlation analysis and partial correlation analysis. The results showed that the seasonal reference crop evapotranspiration was significant decreasing, and the decreased order of absolute value of climate tendency rate was summer, autumn, winter, spring. The distribution of reference crop evapotranspiration in spring was latitudinal, while that in summer and autumn were meridional. The decrease of wind speed and sunshine hours relative humidity were the main reason for the decrease of reference crop evapotranspiration in Henan province.

Key words: reference crop evapotranspiration, Penman-Monteith equation, spatio-temporal variation, impact factors, Henan province

中图分类号: