中国农业气象 ›› 2013, Vol. 34 ›› Issue (02): 215-220.doi: 10.3969/j.issn.1000-6362.2013.02.014

• 论文 • 上一篇    下一篇

贵州水稻抽穗开花期秋风灾害指标初探

王连喜1,2,左晋1,2,谷晓平3,徐永灵3,李琪1,2   

  1. 1南京信息工程大学/江苏省大气环境监测与污染控制高技术研究重点实验室,南京210044;2南京信息工程大学环境科学与工程学院,南京210044;3贵州省山地环境研究所,贵阳550025
  • 收稿日期:2012-07-24 出版日期:2013-04-20 发布日期:2013-04-16
  • 作者简介:王连喜(1959-),河南郑州人,教授,主要从事农业气象与生态气象的教学与研究工作。Email:wlx4533@sina.com
  • 基金资助:
    科技部、财政部公益性行业(气象)科研专项(GYHY200906031);“十二五”国家科技支撑计划课题“西南突发性灾害应急与防控技术集成与示范”(2012BAD20B06);贵州省科技厅“贵州水稻气象灾害风险研究及其应对技术”(黔科合SZ字\[2009\]3014)

Autumn Chilling Indices during Heading to Flowering of Rice in Guizhou Province

WANG Lian xi1,2,ZUO Jin1,2,GU Xiao ping3,XU Yong ling3,LI Qi1,2   

  1. 1Nanjing University of Information Science and Technology/Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control,Nanjing210044,China;2School of Environmental Science and Engineering of NUIST,Nanjing210044;3Guizhou Institute of Mountainous Environment and Climate,Guiyang550025
  • Received:2012-07-24 Online:2013-04-20 Published:2013-04-16

摘要: 根据历史典型秋风气候年(1974、1980、1988、2002年)气候资料和水稻产量资料,采用数理统计和对比印证方法,综合考虑贵州不同海拔高度下水稻抽穗开花期的界限温度,选取冷积温作为水稻秋风灾害指标,对贵州水稻秋风灾害冷积温指标进行研究。计算2002年减产率与相应的冷积温,建立回归方程,根据方程及验证结果确定贵州水稻轻、中、重、严重各秋风灾害冷积温指标(LJW,℃·d)分别为17<LJW≤21、21<LJW≤25、25<LJW≤29、LJW>29,并对冷积温与秋风指数指标进行比较,结果表明,冷积温值对水稻秋风灾害的识别较秋风指数更敏感,其判断结果优于秋风指数。利用冷积温指标可为水稻秋风灾害监测预警、水稻风险评估及区划提供参考,有利于避免水稻大量减产,确保粮食生产安全。

关键词: 水稻, 秋风灾害, 冷积温指标, 贵州

Abstract: The cold accumulated temperature index for autumn chilling of rice in Guizhou province was analyzed by using of mathematic statistics and comparative confirmation methods,based on historical climate data and the rice yield data in typical autumn chilling of 1974,1980,1988 and 2002,considering the lowest biological temperature(LBT)values during heading to flowering of rice on different altitude.The regression equation between low-yield rate and cold accumulated temperature(LJW)in 2002 was established,and then the light,moderate,severe,most severe autumn chilling injury grades of rice in Guizhou were determined as 17<LJW≤21,21<LJW≤25,25<LJW≤29,LJW>29.The comparative results of the two methods (cold accumulated temperature and cold dew index)demonstrated that the cold accumulated temperature was superior to cold dew index in its application.

Key words: Rice, Autumn chilling injury, Cold accumulated temperature index, Guizhou province