主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报

• 论文 • 上一篇    下一篇

基于水热因子的玉米物候模拟

李荣平1,2 ; 周广胜1,2 ; 刘锦利3 ;史奎乔3 ; 梁涛3   

  1. (1.中国气象局沈阳大气环境研究所, 辽宁 沈阳,110016;2.中国科学院植物研究所植被与环境变化国家重点实验室,北京,100093;3.锦州市气象局,辽宁 锦州,121001)
  • 收稿日期:2008-10-05 修回日期:2009-03-02 出版日期:2009-06-26 发布日期:2009-06-26

Phenological simulation of maize based on hydro-thermal factors

LI Rong-ping1,2;ZHOU Guang-sheng1,2;LIU Jin-li3;SHI Kui-qiao3;LIANG Tao3   

  1. (1. Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110016, China; 2. State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China; 3. Jinzhou Meteorological Bureau, Jinzhou 121001, China)
  • Received:2008-10-05 Revised:2009-03-02 Online:2009-06-26 Published:2009-06-26

摘要: 对锦州14 a玉米各生育期特征及其与气候因子的关系分析表明:同品种玉米的物候期相近,变化在2 d左右,而吐丝期到成熟期所需天数变化较大,为6 d或以上;玉米各生育期的影响因子不同,气温与湿度对玉米出苗期、三叶期和七叶期的影响显著,播种期到七叶期的积温占整个生育期积温的20%,并与同期的空气湿度累积量显著二次曲线相关(R 2=0.91)。积温与空气湿度累积可较好地模拟玉米播种期至七叶期和玉米的总生育期。

关键词: 玉米, 生育期, 温度, 空气湿度, 物候模拟

Abstract: The relationships between different growing stages’ characteristics of maize and climatic factors of 14 years in Jinzhou were analyzed. The results show that the phenological phase of the same variety maize is similar and its range is about 2 days, except the silking stage to the mature stage with more than 6 days. The factors influencing various growing stages of maize are different. For example, the emergence stage, three leaf stage and seven leaf stage of maize are significantly influenced by air temperature and humidity. The accumulated temperature from the sowing date to seven leaf stage of maize accounts for 20% of the accumulated temperature in the total growing stage, and it has a significant conical relationship with the cumulant of air humidity (R2=0.91). The accumulated temperature and the cumulant of air humidity could be used to simulate the phenological phase of maize from the seeding stage to the seven leaf stage as well as the total growing stage of maize.

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