湖北农业科学 ›› 2018, Vol. 57 ›› Issue (20): 69-75.doi: 10.14088/j.cnki.issn0439-8114.2018.20.015

• 资源·环境 • 上一篇    下一篇

柳州市早稻高温热害的时空分布规律

唐国敏, 刘永裕, 黄维, 吴炫柯, 安佳君, 程倩倩   

  1. 柳州市农业气象试验站,广西 柳州 545003
  • 收稿日期:2018-05-15 发布日期:2018-10-25
  • 通讯作者: 刘永裕(1967-),高级工程师,主要从事农业气象研究,(电子信箱)543951583@qq.com。
  • 作者简介:唐国敏(1983-),女,广西北海人,工程师,主要从事综合气象业务工作,(电话)13457227134(电子信箱)tang123tt@126.com
  • 基金资助:
    2017年柳州市气象局气象科研项目(2017-04); 广西科技重点研发计划项目(桂科AB17195037)

Temporal and Spatial Distribution of Early Season Rice Heat Damage in Liuzhou City

TANG Guo-min, LIU Yong-yu, HUANG Wei, WU Xuan-ke, AN Jia-jun, CHENG Qian-qian   

  1. Liuzhou Agrometeorological Experimentation Station,Liuzhou 545003,Guangxi,China
  • Received:2018-05-15 Published:2018-10-25

摘要: 分析柳州市高温热害的发生规律及其与水稻产量波动的关系,为合理安排水稻生产和防御高温热害提供科学参考。利用柳州市8个气象观测站1960—2014年的气象资料,分析高温热害发生频次的时空分布规律。同时,结合柳城县、鹿寨县2003—2016年的早稻统计产量资料,分析高温热害对早稻产量的影响。结果表明,高温热害年际发生规律主要由1960—1980年和1981—2009年两个时段构成,两个时段内都表现先减后增的变化趋势,且轻、中、重和总高温热害频次主要存在着一个1~4年尺度周期变化,集中发生在1980年。研究区高温热害南多北少,但总体频次和强度不大,其中以2010年对柳州市南部早稻产量影响最为明显。

关键词: 高温热害, 年际变化, 小波分析, 产量

Abstract: The analysis of regularity of heat damage in Liuzhou and its relationship with the fluctuation of rice yield could provide a scientific reference for rational arrangement of rice production and the defense of heat damage. Meteorological data of 8 meteorological stations from 1960 to 2014 were collected to analyze the temporal and spatial distribution of the occurrence frequency of heat damage. Meanwhile, with the statistical yield data of early rice in Liucheng county and Luzhai county from 2003 to 2016, the effects of heat damage on the yield of early rice were analyzed. The results showed that the annual occurrence of heat damage was mainly divided into two periods, namely 1960-1980 and 1981-2009. In the two periods, heat damage showed a first decreasing and then increasing trend. The frequency of light, medium, heavy and total heat damage mainly existed a period of 1~4 year scale which occur in 1980. Heat damage presented much severer in the south of study area than in the north. The total frequency and intensity were not significant. But there was a significant impact on the early rice yield in the south of Liuzhou in 2010.

Key words: heat damage, annual change, wavelet analysis, yield

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